DOCSLIB.ORG

R2D2 ESR-LCR METER DESCRIPTION. the Device Is

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
R2D2 ESR-LCR METER DESCRIPTION. the Device Is R2D2 ESR-LCR METER DESCRIPTION. The device is designed for measuring low resistance, inductance, capacitance and ESR of capacitors. Functionally, the circuit can be divided into eight modules: 1. L / C oscillator !"#$%&"#'%2. Block stable. current sources (50mA/5mA/0.5mA) !"#$%&"#'%3. Unit responsible ($)*+,-+,.)+% for */0 the 1-2)$)+10 discharge 2,/34 of "%($%#1'/)+1& the capacitor, 1+*56#1'+%"#1 test , )26%"#1 1 789 6%+*)+",#%$%'. :5+6;1%+,/<+%, "4)25 2%=+% $,->1#< +, 8 %"+%'+34 2%*5/)&: 4. Block1. L/C voltage ?)+)$,#%$ amplifier 5. Block2. @/%6 display 1"#%.+16%' (Nokia "#,>1/<+%?% LCD 3310)#%6, (50mA/5mA/0.5mA) 3. @/%6, %#').,AB1& -, $,-$0* 1"(3#5)2%?% 6%+*)+",#%$, 6. control4. @/%6 buttons 5"1/1#)/)& +,($0=)+10 7. PIC18F25205. @/%6 %#%>$,=)+10 microcontroller 1+C%$2,;11 (Nokia LCD 3310) 6. D+%(61 5($,'/)+10 8. Switch7. E16$%6%+#$%//)$ (for switching PIC18F2520 components of the subjects) 8. D%225#,#%$ (*/0 6%225#,;11 1"(3#5)234 6%2(%+)+#%') 8$1+;1( $,>%#3 LC ?)+)$,#%$, 1 "%%#')#"#')++% ($1+;1( 1-2)$)+10 1+*56#1'+%"#1 1 )26%"#1 (1p – 1uF) (%*$%>+% %(1"3',#< +) '1=5The "23"/, principle. 7#% (%*$%>+%of the 1-/%=)+%LC oscillator ' %(1",+104 and 6 (%*%>+32therefore 5"#$%&"#',2 the principle 6%14 ' 1+#)$+)#) of measuring 2,"",. F#2).5 the inductance/1G< +)6%#%$3) and %"%>)++%"#1, 6%#%$3) >3/1 ($12)+)+3 ' *,++%& "4)2) 1 ,/?%$1#2) $,".)#,. H/0 1-2)$)+10 1+*56#1'+%"#1 1 )26%"#1 1"(%/<-5A#"0capacitance $,-+3) (1p -(,$3 1uF) B5(%' to ...describe #,6%& (%*4%* in detail (%-'%/1/ not (%'3"1#< see the #%.+%"#< point. 1-2)$)+10 This is ,detailed %$?,+1-%',' in (%"#%0++5Athe descriptions, of ,'#%2,#1.)"65Asimilar devices, .,"#1.+5A to whom 6,/1>$%'65 the Internet. I.). *$)&C weight. .,"#%#3 ILC will ?)+)$,#%$, mention +) %6,-3',)# only some "#%/< features -+,.1#)/<+%?% that '/10+10were used+, #%.+%"#< in 1-2)$)+10 6,6 J#% >3/% $,+)). I,6=) +%'3& (%*4%* 6 $,".)#,2 (%-'%/1/ 1->,'1#<"0 %# '/10+10 2)='1#6%'%& )26%"#1 1-2)$0)2%& 1+*56#1'+%"#1this scheme +, and $)-5/<#,# algorithm 1-2)$)+10 of calculation. (%+, 5.1#3',)#"0 To ($1measure 6,/1>$%'6) the). inductance and capacitance using different pairs of probes ... This approach has allowed more accurate measurements to establish a permanent, K-2)$)+1) )26%"#1 J/)6#$%/1#1.)"614 6%+*)+",#%$%' %$?,+1-%',+% (% 6/,""1.)"6%25 2)#%*5 – -,$0* 6%+*)+",#%$, "#,>1/<+32 1"#%.+16%2automatic, #%6, partial *% %($)*)/)++%?% calibration. 5$%'+0 Ie +,($0=)+10 LC oscillator (0,2v) " (,$,//)/<+32frequency drift (%*".)#%2 does '$)2)+1 not have -,$0*, such. L "4)2) a significantJ#% $),/1-%',+% "/impact. %>$,-%2 on. 8%*6/A.)++3& the accuracy 1"(3#5)23& measurement 6%+*)+",#%$ as ($)*',$1#)/<+%it was before. $,-$0=,)#"0 Also, a (Q1)new (%"/) approach .)?% +, +)?% to (%*,)#"0calculation "#,>1/<+%) has +,($0=)+1) 1 '6/A.,)#"0 #,&2)$ %#".)#, '$)2)+1. L 2%2)+# *%"#1=)+10 +,($0=)+1)2 5$%'+0 0,2v. "$,>,#3',)# '+5#$)++1& 6%2(,$,#%$allowed to1 C16"1$5)#"0get rid of '$)20the influence #,&2)$,. H,/)) of interturn ($%1"4%*1# capacitance $,".)# )26%"#1 measured 6%+*)+",#%$, inductance. H/0 "%6$,B)+10 in the '$)2)+1 measurement 1-2)$)+10 ' 2)+A(it is 2%=+% taken '3>$,#< into account 2,6"12,/<+3& during ($)*)/ calibration). 1-2)$)+10 )26%"#1 1"(3#5)2%?% 6%+*)+",#%$, (100/300/600 #3"0. 216$%C,$,*). K-2)$)+1) 789 (ESR) 6%+*)+",#%$, 1 1-2)$)+1) 2,/34 "%($%#1'/)+1& '3(%/+0)#"0 (% "/. ($1+;1(5. M, 1"(3#5)23& 6%+*)+",#%$ (%*,)#"0Measurement 6%$%#61& 12(5/<"of capacitance +,($0=)+10 of C%$21$5)2%?% electrolytic 1"#%.+16%2 capacitors "#,>1/<+%?% is organized #%6,. 7#% '3-3',)#by the '"(/)"6classical +,($0=)+10 method, ')/1.1+, - a 6%#%$%?% ($%(%$;1%+,/<+, ESR 6%+*)+",#%$,. H', (%"/)*%',#)/<+% '6/A.)++34 F! 5')/1.1',A# J#%# "1?+,/ *% +)%>4%*12%?% 5$%'+0charge. H,/)) the, (%*6/A.)++3&capacitor stable 6 '34%*5 current F! 216$%6%+#$%//)$ source to $)?1"#$1$5)#a certain (16level 12(5/<", of voltage 1 '3(%/+0)# (0,2 ,+,/%?% v) with-;1C$%'%) a parallel ($)%>$,-%',+1)counting the */0charging *,/<+)&G)?% time. $,".)#, The scheme ')/1.1+3 is+,($0=)+10 implemented. N+,0 -+,.)+1) seq. way. "1/3 Capacitor #%6, 12(5/<", connected 1 +,($0=)+1) subject, ($%1-'%*1#"0 pre- $,".)# ESR. 8$1 1-2)$)+11 ESR 2,/34 )26%"#)& (<10uF) ($%1"4%*1# +)-+,.1#)/<+%) -,'3G)+1) (%6,-,+1& 1-2)$1#)/0. M) "2%#$0 +, #%, .#% */1#)/<+%"#< 12(5/<", '")?% 1-2uS J#%?% *%"#,#%.+% */0 #%?%, .#%>3 6%+*)+",#%$ 5"()/ +)2+%?% -,$0*1#<"0, #)2 ",232 "/)?6, -,'3"1' -+,.)+1) 1-2)$0)2%?% +,($0=)+10. ()#*+, -%."#$/-0,,. M)6%#%$3) %"%>)++%"#1 6%+"#$56;11 6%#%$3) "/)*5)# 5.)"#< ($1 (%'#%$)+11. 8%*"#$%).+3) $)-1"#%$3 ' >/%6) 1"#%.+16, "#,>1/<+%?% #%6, (2. I_source) /5.G) -,2)+1#< +, (%"#%0++3), (%"/) (%*>%$, 14 ($12)$+%?% -+,.)+10 ' ($%;)"") +,"#$%&61 (%(1",+% +1=)). 8%*"#$%).+3) $)-1"#%$3 R3 1 R8 ' >/%6) 5"1/1#)/0 (4. Amp) $)6%2)+*5)#"0 1"(%/<-%',#< 2+%?%%>%$%#+3). 7#% (%-'%/1# '3(%/+1#< #%.+5A (%*"#$%&65 6%JC. 5"1/)+10 %# -+,.)+10 6%#%$%?% -,'1"1# #%.+%"#< $,>%#3 ($1>%$, (%"%>)++% 6$1#1.+% */0 ESR). L2)"#% *'54 F! MCP601 2%=+% 1"(%/<-%',#< %*+5 MCP602. O)/) ' >/%6) 6%225#,;11 (8. Switch) +)%>4%*12% 1"(%/<-%',#< >1"#,>1/<+%) " *'520 %>2%#6,21 $,"".1#,++321 +, +,($0=)+1) 5v. discharge (Q1) and then fed it to a stable voltage and the timer countdown. At the moment of reaching the voltage level of 0,2 v. triggers an internal comparator and a fixed timer. Next is the capacitance calculation. To reduce the measurement time you can select the maximum limit of measuring the capacitance of the test capacitor (100/300/600 thousands of microfarads). Measurement of ESR (ESR) capacitor and the measurement of low resistances is performed by ff. principle. On the subject capacitor short voltage pulse is applied formed a stable source of supply. This causes a spike in voltage magnitude is proportional to the ESR of the capacitor. Two series- connected DU increase the signal to the required level. Further, connected to the output of op amp microcontroller registers peak of the pulse and performs the analog-digital transformation for further calculation of voltage. Knowing the value of the current pulse and the voltage produced calculation of ESR. When measuring the ESR of small vessels (<10uF) is a slight overstatement of meter readings. Despite the fact that pulse duration of 1-2uS enough to recharge the capacitor had a little, thus slightly overestimated the value of the measured voltage. Construction details. Some design features that should be considered when repeated. Trimmer to block the source stable current (2. I_source) should be replaced by the constant, after selecting their approximate value in the configuration process (Described below). Trimmer resistors R3 and R8 in the amplifier unit (4. Amp) is recommended to use multi. This will allow fine-tuning of the coefficients. enhance the value of which depends on the accuracy of the instrument (especially critical for ESR). Instead of two MCP601 op amp can be used one MCP602. Relay in switching unit (8. Switch) must be used bistable with two windings rated for 5v. Capacitors C2 and C5-polar tantalum or "pottery." Choke L1 - such as "dumbbells". Even better, if the "dumbbells" will be in the ferrite "glass". Block "S1 optional" is the control unit supply voltage on the LC oscillator. Optionally, there is a possibility turn off the generator in the measurement mode "elektorlitov" scheme to reduce power consumption. S1 unit can not use, simply plug the generator to the LC diet. ! To avoid failure of the microcontroller, Jmp jumper should be set only after the voltage setting in point "B" resistor "R_Vbat" (described below). The circuit module is missing frequency (prescaler and buffer), although the software itself is implemented frequency. Measured frequency (with the "correct" amplitude) must be submitted by 6 output MK (F). It should be understood that for modes measuring capacitance and inductance at input 6 MK must be supplied from the output signal LC oscillator. With this purpose in the scheme shows the switch. One of the possible solutions of the schematic module frequency (prescaler / buffer switching) is still under development. If necessary, switching can be arranged on the common switches, as well as diagrams of the input circuits (divider \ buffer) using one of the many schemes available in Internet. Setting up and operating the device. When you first turn on the device should reset all settings to default. To do this, press 3 and power on the device. Later this operation can be done from the menu «Function» section "Reset". After reset it is desirable to produce off-ON device. By default, after reset the contrast value «Contrast» set as 200. You can change the settings menu, or perform off-ON device holding the 4 pressed. In this case, immediately after the device goes into the menu adjust the contrast. Next button 4 contrast is increased, and button 3 - is reduced. !"#$%#&'(")* +2 , +5 ('#('-".*% ,-, #%/"-0)#'0 “1%)'2,1'”. 3)"&&%-4 L1 – (,/' “5'#(%-41'”. 67% -89:%, %&-, ;(' “5'#(%-41'” <8$%( . =%)),("."2 “&('1'#%”. >-"1 “S1 optional” ;(" <-"1 8/)'.-%#,0 /"$'9%? #'/)0@%#,0 /,('#,0 #' LC 5%#%)'("). A/B,"#'-4#", &87%&(.8%( ."C2"@#"&(4 "(1-D9'(4 5%#%)'(") . )%@,2% ,C2%)%#,0 “;-%1(")-,(".” $-0 &#,@%#,0 ;#%)5"/"()%<-%#,0 &E%2*. >-"1 S1 2"@#" #% ,&/"-4C".'(4, /)"&(" /"$1-D9,. LC 5%#%)'(") 1 /,('#,D. !!! F" ,C<%@'#,% .*E"$' ,C &()"0 2,1)"1"#()"--%)', /%)%2*918 Jmp &-%$8%( 8&('#'.-,.'(4 ("-41" /"&-% #'&()"?1, #'/)0@%#,0 . ("91% “B” )%C,&(")"2 “R_Vbat” ("/,&'#" #,@%). F &E%2% "(&8(&(.8%( 2"$8-4 9'&("("2%)' (/)%$$%-,(%-4 , <8=%)) E"(0 /)"5)'22#" &'2 9'&("("2%) )%'-,C".'#. GC2%)0%28D 9'&("(8 (& «/)'.,-4#"?» '2/-,(8$"?) &-%$8%( /"$'.'(4 #' 6 .*."$ MK (F). H%"<E"$,2" /"#,2'(4, 9(" $-0 )'<"(* )%@,2". ,C2%),(%-0 %21"&(, , ,#$81(,.#"&(, #' .E"$ 6 MK $"-@%# /"$'.'(4&0 &,5#'- & .*E"$' LC 5%#%)'(")'.
Load more

Recommended publications
  • U1733C Handheld LCR Meter
    Keysight U1731C/U1732C/ U1733C Handheld LCR Meter User’s Guide U1731C/U1732C/U1733C User’s Guide I Notices © Keysight Technologies 2011 – 2014 Warranty Safety Notices No part of this manual may be reproduced in The material contained in this document is any form or by any means (including elec- provided “as is,” and is subject to change, tronic storage and retrieval or translation without notice, in future editions. Further, CAUTION into a foreign language) without prior agree- to the maximum extent permitted by the ment and written consent from Keysight applicable law, Keysight disclaims all A CAUTION notice denotes a haz- Technologies as governed by United States ard. It calls attention to an operat- and international copyright laws. warranties, either express or implied, with regard to this manual and any information ing procedure, practice, or the likes Manual Part Number contained herein, including but not limited of that, if not correctly performed to the implied warranties of merchantabil- or adhered to, could result in dam- U1731-90077 ity and fitness for a particular purpose. Keysight shall not be liable for errors or for age to the product or loss of impor- Edition incidental or consequential damages in tant data. Do not proceed beyond a Edition 8, August 2014 connection with the furnishing, use, or CAUTION notice until the indicated performance of this document or of any conditions are fully understood and Keysight Technologies information contained herein. Should Key- met. 1400 Fountaingrove Parkway sight and the user have a separate written Santa Rosa, CA 95403 agreement with warranty terms covering the material in this document that conflict with these terms, the warranty terms in WARNING the separate agreement shall control.
    [Show full text]
  • 1920 Precision LCR Meter User and Service Manual
    ♦ PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦ 1920 Precision LCR Meter User and Service Manual Copyright © 2014 IET Labs, Inc. Visit www.ietlabs.com for manual revision updates 1920 im/February 2014 IET LABS, INC. www.ietlabs.com Long Island, NY • Email: [email protected] TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988 ♦ PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦ IET LABS, INC. www.ietlabs.com Long Island, NY • Email: [email protected] TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988 ♦ PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT ♦ WARRANTY We warrant that this product is free from defects in material and workmanship and, when properly used, will perform in accordance with applicable IET specifi cations. If within one year after original shipment, it is found not to meet this standard, it will be repaired or, at the option of IET, replaced at no charge when returned to IET. Changes in this product not approved by IET or application of voltages or currents greater than those allowed by the specifi cations shall void this warranty. IET shall not be liable for any indirect, special, or consequential damages, even if notice has been given to the possibility of such damages. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. IET LABS, INC. www.ietlabs.com 534 Main Street, Westbury, NY 11590 TEL: (516) 334-5959 • (800) 899-8438 • FAX: (516) 334-5988 i WARNING OBSERVE ALL SAFETY RULES WHEN WORKING WITH HIGH VOLTAGES OR LINE VOLTAGES.
    [Show full text]
  • 878B and 879B LCR Meter User Manual
    Model 878B, 879B Dual Display LCR METER INSTRUCTION MANUAL Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operation, service, and repair of this instrument. DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the instrument in the presence of flammable gases or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard. KEEP AWAY FROM LIVE CIRCUITS Instrument covers must not be removed by operating personnel. Component replacement and internal adjustments must be made by qualified maintenance personnel. DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT Do not install substitute parts or perform any unauthorized modifications to this instrument. Return the instrument to B&K Precision for 1 service and repair to ensure that safety features are maintained. WARNINGS AND CAUTIONS WARNING and CAUTION statements, such as the following examples, denote a hazard and appear throughout this manual. Follow all instructions contained in these statements. A WARNING statement calls attention to an operating procedure, practice, or condition, which, if not followed correctly, could result in injury or death to personnel. A CAUTION statement calls attention to an operating procedure, practice, or condition, which, if not followed correctly, could result in damage to or destruction of part or all of the product. Safety Guidelines To ensure that you use this device safely, follow the safety guidelines listed below: 2 This meter is for indoor use, altitude up to 2,000 m. The warnings and precautions should be read and well understood before the instrument is used.
    [Show full text]
  • A Rapid Inductance Estimation Technique by Frequency Manipulation
    Latest Trends in Circuits, Control and Signal Processing A Rapid Inductance Estimation Technique By Frequency Manipulation LUM KIN YUN, TAN TIAN SWEE Medical Implant Technology Group, Materials and Manufacturing Research Alliance, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia [email protected]; [email protected] Abstract:- Inductors or coils are one of the basic electronics elements. Measurement of the inductance values does play an important role in circuit designing and evaluation process. However, the inductance cannot be measured easily like resistor or capacitor. Thus, here would like to introduce an inductance estimation technique which can estimate the inductance value in a short time interval. No complex and expensive equipment are involved throughout the measurement. Instead, it just required the oscilloscope and function generator that is commonly available in most electronic laboratory. The governed theory and methods are being stated. The limitation of the method is being discussed alongside with the principles and computer simulation. From the experiment, the error in measurement is within 10%. This method does provide promising result given the series resistance of the inductor is small and being measured using proper frequency. Key-Words: -Inductor, Inductance measurement, phasor, series resistance, phase difference, impedance. • Current and voltage method which is based on the determination of impedance. 1 Introduction • Bridge and differential method which is based on the relativity of the voltages and There are many inductors being used in electronics currents between the measured and reference circuits. In order to evaluate the performance of impedances until a balancing state is electronic system, it is particular important in achieved.
    [Show full text]
  • THAM 4-4 Programmable Impedance Transfer Standard to Support LCR Meters
    THAM 4-4 Programmable Impedance Transfer Standard to Support LCR Meters N.M. Oldham S.R. Booker Electricity Division Primary Standards Lab National Institute of Standards and Technology' Sandia National Laboratories Gaithersburg, MD 20899-0001 Albuquerque, NM Summary Abstract n. Programmable ImpedanceStandards A programmable transfer standard for calibrating impedance (LCR)meters is described. The standard makes use of low loss chip Miniature impedances components and an electronic impedance generator (to synthesize Conventional impedance standards like air-core inductors, arbitrary complex impedances) that operate up to I MHz. gas-dielectric capacitors, and wire-wound resistors have served Intercomparison data between several LCR meters, including the standards community for decades. They were designed for estimated uncertainties will be provided in the final paper. stability and a number of other qualities, but not compactness. They are typically mounted in cases that are 10 to 20 cm on a I. Introduction side with large connectors, and are not easily incorporated into a programmableimpedance standard. To overcome this problem, chip Commercial digital impedance meters, often referred to as LCR components were evaluated as possible impedance standards and it meters, are used much like digital multimeters (DMMs) as diagnostic was discovered that some of these chips are approaching the quality and quality control tools in engineering and manufacturing. Like the of the older laboratory standards. For example, I of ceramic chip best DMMs, the accuracies of the best LCR meters are approaching capacitors are available with temperature coefficients of 30 ppml°C those of the standards that support them. The standards are 2- to 4- compared to 5 ppml°C for gas capacitors.
    [Show full text]
  • LCR Measurement Primer 2Nd Edition, August 2002 Comments: [email protected]
    LCLCRR MEASUREMENMEASUREMENTT PRIMEPRIMERR ISO 9001 Certified 5 Clock Tower Place, 210 East, Maynard, Massachusetts 01754 TELE: (800) 253-1230, FAX: (978) 461-4295, INTL: (978) 461-2100 http:// www.quadtech.com 2 Preface The intent of this reference primer is to explain the basic definitions and measurement of impedance parameters, also known as LCR. This primer provides a general overview of the impedance characteristics of an AC cir- cuit, mathematical equations, connection methods to the device under test and methods used by measuring instruments to precisely characterize impedance. Inductance, capacitance and resistance measuring tech- niques associated with passive component testing are presented as well. LCR Measurement Primer 2nd Edition, August 2002 Comments: [email protected] 5 Clock Tower Place, 210 East Maynard, Massachusetts 01754 Tel: (978) 461-2100 Fax: (978) 461-4295 Intl: (800) 253-1230 Web: http://www.quadtech.com This material is for informational purposes only and is subject to change without notice. QuadTech assumes no responsibility for any error or for consequential damages that may result from the misinterpretation of any procedures in this publication. 3 Contents Impedance 5 Recommended LCR Meter Features 34 Definitions 5 Test Frequency 34 Impedance Terms 6 Test Voltage 34 Phase Diagrams 7 Accuracy/Speed 34 Series and Parallel 7 Measurement Parameters 34 Connection Methods 10 Ranging 34 Averaging 34 Two-Terminal Measurements 10 Median Mode 34 Four-Terminal Measurements 10 Computer Interface 35 Three-Terminal (Guarded)
    [Show full text]
  • A History of Impedance Measurements
    A History of Impedance Measurements by Henry P. Hall Preface 2 Scope 2 Acknowledgements 2 Part I. The Early Experimenters 1775-1915 3 1.1 Earliest Measurements, Dc Resistance 3 1.2 Dc to Ac, Capacitance and Inductance Measurements 6 1.3 An Abundance of Bridges 10 References, Part I 14 Part II. The First Commercial Instruments 1900-1945 16 2.1 Comment: Putting it All Together 16 2.2 Early Dc Bridges 16 2.3 Other Early Dc Instruments 20 2.4 Early Ac Bridges 21 2.5 Other Early Ac Instruments 25 References Part II 26 Part III. Electronics Comes of Age 1946-1965 28 3.1 Comment: The Post-War Boom 28 3.2 General Purpose, “RLC” or “Universal” Bridges 28 3.3 Dc Bridges 30 3.4 Precision Ac Bridges: The Transformer Ratio-Arm Bridge 32 3.5 RF Bridges 37 3.6 Special Purpose Bridges 38 3,7 Impedance Meters 39 3.8 Impedance Comparators 40 3.9 Electronics in Instruments 42 References Part III 44 Part IV. The Digital Era 1966-Present 47 4.1 Comment: Measurements in the Digital Age 47 4.2 Digital Dc Meters 47 4.3 Ac Digital Meters 48 4.4 Automatic Ac Bridges 50 4.5 Computer-Bridge Systems 52 4.6 Computers in Meters and Bridges 52 4.7 Computing Impedance Meters 53 4.8 Instruments in Use Today 55 4.9 A Long Way from Ohm 57 References Part IV 59 Appendices: A. A Transformer Equivalent Circuit 60 B. LRC or Universal Bridges 61 C. Microprocessor-Base Impedance Meters 62 A HISTORY OF IMPEDANCE MEASUREMENTS PART I.
    [Show full text]
  • Laboratory Modules Electrical Measurement
    HIGH VOLTAGE AND ELECTRICAL MEASUREMENT LABORATORY LABORATORY MODULES ELECTRICAL MEASUREMENT ELECTRICAL ENGINEERING DEPARTMENT FACULTY OF ENGINEERING UNIVERSITAS INDONESIA 2018 ELECTRICAL MEASUREMENT LABORATORY MODULES High Voltage & Electrical 2018 Measurement Lab. MODULE 1 LABORATORY BRIEFING AND PRE-TEST Laboratory Breifing is held on February 19, 2018 at 18.45 PM located at K building, K301, Faculty of Engineering. Attendance to briefing and pre-test is mandatory and will be included in the scoring system. 2 ELECTRICAL MEASUREMENT LABORATORY MODULES High Voltage & Electrical 2018 Measurement Lab. MODULE 2 IMPEDANCE MEASUREMENT I. OBJECTIVE 1. To know LCR Meter and its function 2. To know the construction of LCR Meter and how LCR Meter works II. BASIC THEORY LCR meter is an electronic electrical measurement to measure resistance, inductance and capacitance value. The utilization is relatively easy since today, a digital LCR meter is already in the market, and it makes the user easier to use it. Here is a brief explanation about resistor, inductor and capacitor Resistor is an electronic component that has the function to control and limit electricity. It is also used to limit the amount of current flowing in a circuit. According to its name, resistor is resistive and mostly is made from carbon. The unit of resistance is Ohm and symbolized by omega. Type of resistors mostly has the shape of tube with two copper legs. There are colored circles in the body to make the user know about the resistance without measuring it using measurement device. (example: ohm meter) Figure 1. Resistors types Inductor is symbolized by L. Usually in a form of coil, but sometimes has other forms too.
    [Show full text]
  • Electrical Measuring Instruments and Instrumentation
    Electrical Measuring Instruments and Instrumentation By :- Sh Gulvender TOPICS LCR METERS Power Measurements in 3 phase circuit by (a) Two wattmeter method (b) Three wattmeter method Transducer Measurements of Temperature LCR meter An LCR meter is a type of electronic test equipment used to measure the inductance (L), capacitance (C), and resistance (R) of an electronic component. Advantages of an LCR meter 1. One thing that is evident is that it is compact and a three in one sort of a measuring unit which is obviously preferable. 2. Other than this it is also worth mentioning here that an LCR meter is quite accurate and gives the readings with a high precision. 3. It can also tell about the angle between the voltage and the current measure if needed. 4. It is easy to calibrate and quick to use, the user just needs to connect the two probes of the meter to the DUT as shown below: Transducer This article is about an engineering device. For the similarly named concept in computer science, see Finite state transducer. A transducer is a device that converts energy from one form to another. Usually a transducer converts a signal in one form of energy to a signal in another. Transducers are often employed at the boundaries of automation, measurement, and control systems, where electrical signals are converted to and from other physical quantities (energy, force, torque, light, motion, position, etc.). The process of converting one form of energy to another is known as transduction. various types of transducer measurement of strain gauge A strain gauge is a device used to measure strain on an object.
    [Show full text]
  • LCR Meter PCE-UT 603
    www.pce-industrial-needs.com Tursdale Technical Services Ltd Unit N12B Tursdale Business Park Co. Durham DH6 5PG United Kingdom Phone: +44 ( 0 ) 191 377 3398 Fax: +44 ( 0 ) 191 377 3357 [email protected] http://www.industrial-needs.com/ Manual LCR Meter PCE-UT 603 [email protected] Table of contents Overview .................................................................................................................................................. 3 Safety Information ................................................................................................................................... 3 Rules for Safe Operation .......................................................................................................................... 3 International Electrical Symbols .............................................................................................................. 4 The Meter Structure ................................................................................................................................. 4 Functional Buttons ................................................................................................................................... 5 Display Symbols ...................................................................................................................................... 5 Measurement Operation ........................................................................................................................... 6 A. Measuring
    [Show full text]
  • Short Form Catalog Electrical Measuring Instruments
    Short Form Catalog Electrical Measuring Instruments P2 - POWER ANALYZERS P3 - POWER ANALYZERS / POWER METERS P4 - CURRENT SENSORS P5 - POWER QUALITY ANALYZERS / POWER LOGGERS P6 - OSCILLOSCOPES P7 - MEMORY RECORDERS P9 - WIRELESS LOGGING STATION / DATA LOGGERS P10 - IMPEDANCE ANALYZERS P11 - IMPEDANCE ANALYZERS / LCR METERS P12 - RESISTANCE METERS P13 - BATTERY TESTERS P14 - IMPULSE WINDING TESTERS P15 - SAFETY TESTERS P16 - INSULATION TESTERS P17 - CLAMP ON METERS P18 - PHASE DETECTORS / BYPASS DIODE TESTERS P19 - DIGITAL MULTIMETERS / EARTH TESTERS 2 POWER ANALYZERS POWER ANALYZER PW6001 Ultra-precise Measurement for High-efficiency Inverters & Motors Basic accuracy for power: ±0.02% rdg. Max. 6ch (Synchronize 2 Units: 12ch) High performance current sensor input High-capacity waveform storage 5MS/s sampling, 18 bit A/D resolution Powerful harmonic analysis (100th order) DC to 2MHz bandwidth FFT analysis, user-defined parameter calculation 10ms fastest data update Motor analysis (4ch), Efficiency analysis HEV and EV measurement systems 3-phase inverter Torque Pulse Load Three-phase Inverter Motor sensor encoder Three-wire Inverter Motor Battery POWER ANALYZERS / POWER METERS 3 POWER ANALYZER PW3390 4ch High-precision Power Analyzer Basic accuracy: ±0.04% rdg. + current sensor accuracy Max. 4ch / High-capacity waveform storage 500kS/s sampling, DC to 200 kHz bandwidth, 50ms data update High performance harmonic analysis (100th order) Motor analysis (3ch), Efficiency analysis, FFT Analysis For high-efficiency inverters & motors (EV/HEV/PHV)
    [Show full text]
  • (PCBA) with Keysight Handheld Test Tools
    Keysight Technologies Troubleshooting a Printed Circuit Board Assembly (PCBA) with Keysight Handheld Test Tools Keysight handheld digital multimeters, LCR meters, oscilloscopes and thermal Application Brief imagers delivering essential features and performance to meet electronic troubleshooting needs Introduction The printed circuit board assembly (PCBA) can be found in almost any electronic devices. These electronic devices range from consumer electronics such as scanners, exercise devices, charging stations, computer accessories, and modems to commercial electronics in the industrial and medical fields with stringent requirements. Testing is crucial to ensure the electronic devices operate normally. In most cases of electronic device failures, the root cause is determined to be the PCBA itself. Electronic manufacturers use circuit board testing such as the in-circuit test (ICT), automated optical inspection (AOI), or flying probe to monitor the circuit board quality during the PCBA manufacturing process. Circuit board testing closely follows the box built process where a functional test is performed to verify the device performance. During the production or manufacturing process, it is common practice to send a certain percentage of devices that fail the quality control test for troubleshooting to identify the root cause of failure. This application note describes some common techniques used in circuit board troubleshooting. Before proceeding with the troubleshooting, it is important to identify the failure symptoms. The failure symptoms may provide information about the possible cause of defect. Printed circuit board assembly troubleshooting Checking the power supply voltage to the circuit Voltage measurement of the circuit board’s power supply is an important testing process because it is critical that a proper level of power is supplied to most of the integrated circuits (ICs).
    [Show full text]