The Oscilloscope and the Function Generator: Some Introductory Exercises for Students in the Advanced Labs
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MXG X-Series Signal Generators N5183B Microwave Analog 9 Khz to 13, 20, 31.8, Or 40 Ghz
MXG X-Series Signal Generators N5183B Microwave Analog 9 kHz to 13, 20, 31.8, or 40 GHz Find us at www.keysight.com Page 1 Definitions Specification (spec): Specifications represent warranted performance of a calibrated instrument that has been stored for a minimum of 2 hours within the operating temperature range of 0 to 55 °C, unless otherwise stated, and after a 45 minutes warm-up period. The specifications include measurement uncertainty. Data represented in this document are specifications unless otherwise noted. Typical (typ): Typical (typ) describes additional product performance information. It is performance beyond specifications that 80 percent of the units exhibit with a 95 percent confidence level at room temperature (approximately 25 °C). Typical performance does not include measurement uncertainty. Nominal (nom) or measured (meas): Nominal (nom) or measured (meas) describes a performance attribute that is by design or measured during the design phase for the purpose of communicating sampled, mean, or average performance, such as the 50-ohm connector or amplitude drift vs. time. This data is not warranted and is measured at room temperature (approximately 25 °C). Find us at www.keysight.com Page 2 Frequency Specifications Range Frequency range Option 513 9 kHz to 13 GHz Option 520 9 kHz to 20 GHz Option 532 9 kHz to 31.8 GHz Option 540 9 kHz to 40 GHz Resolution 0.001 Hz Phase offset Adjustable in nominal 0.1° increments Frequency switching speed 1 () = typical Standard Option UNZ 2, 4 Option UZ2 3, 4 CW mode SCPI mode (≤ 5 ms) ≤ 1.15 ms (≤ 750 μs) < 1.65 ms (1 ms) List/step sweep mode (≤ 5 ms) ≤ 900 μs (≤ 600 μs) < 1.4 ms (850 μs) 1. -
Chapter 3: Data Transmission Terminology
Chapter 3: Data Transmission CS420/520 Axel Krings Page 1 Sequence 3 Terminology (1) • Transmitter • Receiver • Medium —Guided medium • e.g. twisted pair, coaxial cable, optical fiber —Unguided medium • e.g. air, seawater, vacuum CS420/520 Axel Krings Page 2 Sequence 3 1 Terminology (2) • Direct link —No intermediate devices • Point-to-point —Direct link —Only 2 devices share link • Multi-point —More than two devices share the link CS420/520 Axel Krings Page 3 Sequence 3 Terminology (3) • Simplex —One direction —One side transmits, the other receives • e.g. Television • Half duplex —Either direction, but only one way at a time • e.g. police radio • Full duplex —Both stations may transmit simultaneously —Medium carries signals in both direction at same time • e.g. telephone CS420/520 Axel Krings Page 4 Sequence 3 2 Frequency, Spectrum and Bandwidth • Time domain concepts —Analog signal • Varies in a smooth way over time —Digital signal • Maintains a constant level then changes to another constant level —Periodic signal • Pattern repeated over time —Aperiodic signal • Pattern not repeated over time CS420/520 Axel Krings Page 5 Sequence 3 Analogue & Digital Signals Amplitude (volts) Time (a) Analog Amplitude (volts) Time (b) Digital CS420/520 Axel Krings Page 6 Sequence 3 Figure 3.1 Analog and Digital Waveforms 3 Periodic A ) s t l o v ( Signals e d u t 0 i l p Time m A –A period = T = 1/f (a) Sine wave A ) s t l o v ( e d u 0 t i l Time p m A –A period = T = 1/f CS420/520 Axel Krings Page 7 (b) Square wave Sequence 3 Figure 3.2 Examples of Periodic Signals Sine Wave • Peak Amplitude (A) —maximum strength of signal, in volts • FreQuency (f) —Rate of change of signal, in Hertz (Hz) or cycles per second —Period (T): time for one repetition, T = 1/f • Phase (f) —Relative position in time • Periodic signal s(t +T) = s(t) • General wave s(t) = Asin(2πft + Φ) CS420/520 Axel Krings Page 8 Sequence 3 4 Periodic Signal: e.g. -
An Oscilloscope Correction Method for Vector-Corrected RF Measurements
This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 1 An Oscilloscope Correction Method for Vector-Corrected RF Measurements Sebastian Gustafsson, Student Member, IEEE, Mattias Thorsell, Member, IEEE, Jörgen Stenarson, Member, IEEE, and Christian Fager, Member, IEEE Abstract— The transfer characteristics of the RF front-end circuit components. As these errors must be compensated for circuitry of a real-time oscilloscope (RTO) are not only frequency to achieve accurate signal sampling [4], several correction dependent and nonlinear with signal amplitude but also depen- techniques have been introduced [5], [6]. Other correction dent on the voltage range setting of the oscilloscope. A correction table in the frequency domain is proposed to account for the techniques have also been introduced [7]–[12], but they are additional gain and delay introduced when switching between only valid for sampling oscilloscopes. Previous research different voltage ranges. The table was extracted from the has focused on correction techniques for a certain set of measured data in which a continuous-wave signal source was instrument settings, e.g., a particular voltage range. Hence, connected to the oscilloscope ports, whereas the input power, the changing the settings would make the correction invalid. frequency, and voltage ranges were varied. The importance of the corrections is demonstrated by its use in an RTO-based two-port However, changing the range is desirable in some applications, vector-corrected measurement system. Measurements from the to fully utilize the voltage range of the ADC. -
Effect of Moisture Distribution on Velocity and Waveform of Ultrasonic-Wave Propagation in Mortar
materials Article Effect of Moisture Distribution on Velocity and Waveform of Ultrasonic-Wave Propagation in Mortar Shinichiro Okazaki 1,* , Hiroma Iwase 2, Hiroyuki Nakagawa 3, Hidenori Yoshida 1 and Ryosuke Hinei 4 1 Faculty of Engineering and Design, Kagawa University, 2217-20 Hayashi, Takamatsu, Kagawa 761-0396, Japan; [email protected] 2 Chuo Consultants, 2-11-23 Nakono, Nishi-ku, Nagoya, Aichi 451-0042, Japan; [email protected] 3 Shikoku Research Institute Inc., 2109-8 Yashima, Takamatsu, Kagawa 761-0113, Japan; [email protected] 4 Building Engineering Group, Civil Engineering and Construction Department, Shikoku Electric Power Co., Inc., 2-5 Marunouchi, Takamatsu, Kagawa 760-8573, Japan; [email protected] * Correspondence: [email protected] Abstract: Considering that the ultrasonic method is applied for the quality evaluation of concrete, this study experimentally and numerically investigates the effect of inhomogeneity caused by changes in the moisture content of concrete on ultrasonic wave propagation. The experimental results demonstrate that the propagation velocity and amplitude of the ultrasonic wave vary for different moisture content distributions in the specimens. In the analytical study, the characteristics obtained experimentally are reproduced by modeling a system in which the moisture content varies between the surface layer and interior of concrete. Keywords: concrete; ultrasonic; water content; elastic modulus Citation: Okazaki, S.; Iwase, H.; 1. Introduction Nakagawa, H.; Yoshida, H.; Hinei, R. Effect of Moisture Distribution on As many infrastructures deteriorate at an early stage, long-term structure management Velocity and Waveform of is required. If structural deterioration can be detected as early as possible, the scale of Ultrasonic-Wave Propagation in repair can be reduced, decreasing maintenance costs [1]. -
Introduction to Noise Radar and Its Waveforms
sensors Article Introduction to Noise Radar and Its Waveforms Francesco De Palo 1, Gaspare Galati 2 , Gabriele Pavan 2,* , Christoph Wasserzier 3 and Kubilay Savci 4 1 Department of Electronic Engineering, Tor Vergata University of Rome, now with Rheinmetall Italy, 00131 Rome, Italy; [email protected] 2 Department of Electronic Engineering, Tor Vergata University and CNIT-Consortium for Telecommunications, Research Unit of Tor Vergata University of Rome, 00133 Rome, Italy; [email protected] 3 Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR, 53343 Wachtberg, Germany; [email protected] 4 Turkish Naval Research Center Command and Koc University, Istanbul, 34450 Istanbul,˙ Turkey; [email protected] * Correspondence: [email protected] Received: 31 July 2020; Accepted: 7 September 2020; Published: 11 September 2020 Abstract: In the system-level design for both conventional radars and noise radars, a fundamental element is the use of waveforms suited to the particular application. In the military arena, low probability of intercept (LPI) and of exploitation (LPE) by the enemy are required, while in the civil context, the spectrum occupancy is a more and more important requirement, because of the growing request by non-radar applications; hence, a plurality of nearby radars may be obliged to transmit in the same band. All these requirements are satisfied by noise radar technology. After an overview of the main noise radar features and design problems, this paper summarizes recent developments in “tailoring” pseudo-random sequences plus a novel tailoring method aiming for an increase of detection performance whilst enabling to produce a (virtually) unlimited number of noise-like waveforms usable in different applications. -
Future of Vector Network Analysis Dylan Williams and Nate Orloff Integrated Circuits Drive Wireless Communications
Future of Vector Network Analysis Dylan Williams and Nate Orloff Integrated Circuits Drive Wireless Communications Application Frequency (GHz) 10 30 100 300 1000 100 10 Transit Frequency (GHz) Frequency Transit 1990 1995 2000 2005 2010 2015 2020 Year We Cannot Take the Integrated Circuit for Granted at mmWaves 2 Next 15 Years of Wireless Manufacturing by Country The United States still dominates mmWave manufacturing Enables $12.3T in Total Economic Growth (2020-2035) Communication Providers Want Speed of Fiber on Your Phone Millimeter-Waves are the Next Wireless Frontier Measurements and Calibrations Matter at mmWaves Before Calibration 64 QAM at 44 GHz After Calibration mmWave Measurement Challenge of our Era Not a Single RF Connector! On-Wafer IC and System-Level Test OTA System-Level Test Transistor models IC Test System-Level Test End-to-End Verification On-Wafer Connectorized Free-Space Goals for Vector Network Analysis in CTL Project Calibration Reference Planes On-Wafer and to OTA Test On-Wafer Measurements • Innovations in Calibration • Support Device Models to System-Level Test • State-Of-The-Art Instruments for US mmWave NR Manufacturers Vector Network Analysis • Platform for Traceable System-Level Tests Across CTL • Close the Connector-Less Gap mmWave Design Extremely Complex Accurate measurements are a must 80 80 GHz GHz 160 ~ GHz 240 GHz • Highly nonlinear operating states required for efficiency • Characterize, capture, control and reuse harmonics • Must maintain linearity On-Wafer Measurement the Only Way to Test ICs Yesterday -
P50xxa Streamline Series Vector Network Analyzer 2/4-Port up to 53 Ghz
P50xxA Streamline Series Vector Network Analyzer 2/4-port Up to 53 GHz. 2/4/6-port Up to 20 GHz Compact Form. Zero Compromise. P5000A/P5020A 9 kHz to 4.5 GHz P5001A/P5021A 9 kHz to 6.5 GHz P5002A/P5022A 9 kHz to 9 GHz P5003A/P5023A 9 kHz to 14 GHz P5004A/P5024A 9 kHz to 20 GHz P5005A/P5025A 100 kHz to 26.5 GHz P5006A/P5026A 100 kHz to 32 GHz P5007A/P5027A 100 kHz to 44 GHz P5008A/P5028A 100 kHz to 53 GHz Find us at www.keysight.com Page 1 Keysight P500xA and P502xA Streamline Series VNA The freedom of portable network analysis doesn’t have to mean a compromise in performance. The P50xxA Series brings high-end performance and flexibility to the portable Keysight Streamline Series. Gain confidence in your measurements with best-in-class performance offering fast, reliable, and repeatable results. Explore the complete characterization of your devices with a rich portfolio of software applications that transform the compact network analyzer into a complete RF measurement solution. The P50xxA Series, a member of Keysight’s Streamline Series offers the performance required for testing passive components, amplifiers, mixers or frequency converters. The vector network analyzer (VNA) provides best-in-class key specifications such as dynamic range, measurement speed, trace noise and temperature stability. Choose from 2- or 4-port models up to 53 GHz, or 2-, 4- or 6-port models up to 20 GHz. The VNA is packaged in a compact chassis and controlled by an external computer with powerful data processing capabilities and functionalities. -
10 Factors in Choosing a Basic Oscilloscope 10 Factors in Choosing a Basic Oscilloscope Contents Intro 1 2 3 4 5 6 7 8 9 10 11 Contact 2
10 FACTORS IN CHOOSING A BASIC OSCILLOSCOPE 10 FACTORS IN CHOOSING A BASIC OSCILLOSCOPE CONTENTS INTRO 1 2 3 4 5 6 7 8 9 10 11 CONTACT 2 10 Factors in Choosing a Basic Oscilloscope There are several ways to navigate this interactive PDF document: Click on the table of contents (page 3) Basic oscilloscopes are used as windows into signals for troubleshooting Use the navigation at the top of each page to jump circuits or checking signal quality. They generally come with bandwidths to sections or use the page forward/back arrows from around 50 MHz to 200 MHz and are found in almost every design lab, Use the arrow keys on your keyboard education lab, service center and manufacturing cell. Use the scroll wheel on your mouse Whether you buy a new scope every month or every five years, this guide will Left click to move to the next page, right click to move to the previous page (in full-screen mode only) give you a quick overview of the key factors that determine the suitability of a Click on the icon ß to enlarge the image. basic oscilloscope to the job at hand. The digital storage oscilloscope Oscilloscopes are the basic tool for anyone designing, manufacturing or repairing electronic equipment. A digital storage oscilloscope (DSO, on which this guide concentrates) acquires and stores waveforms. The waveforms show a signal’s voltage and frequency, whether the signal is distorted, timing between signals, how much of a signal is noise, and much, much more. 10 FACTORS IN CHOOSING A BASIC OSCILLOSCOPE CONTENTS INTRO 1 2 3 4 5 6 7 8 9 10 11 -
(12) United States Patent (10) Patent No.: US 7,994,744 B2 Chen (45) Date of Patent: Aug
US007994744B2 (12) United States Patent (10) Patent No.: US 7,994,744 B2 Chen (45) Date of Patent: Aug. 9, 2011 (54) METHOD OF CONTROLLING SPEED OF (56) References Cited BRUSHLESS MOTOR OF CELING FAN AND THE CIRCUIT THEREOF U.S. PATENT DOCUMENTS 4,546,293 A * 10/1985 Peterson et al. ......... 3.18/400.14 5,309,077 A * 5/1994 Choi ............................. 318,799 (75) Inventor: Chien-Hsun Chen, Taichung (TW) 5,748,206 A * 5/1998 Yamane .......................... 34.737 2007/0182350 A1* 8, 2007 Patterson et al. ............. 318,432 (73) Assignee: Rhine Electronic Co., Ltd., Taichung County (TW) * cited by examiner Primary Examiner — Bentsu Ro (*) Notice: Subject to any disclaimer, the term of this (74) Attorney, Agent, or Firm — Browdy and Neimark, patent is extended or adjusted under 35 PLLC U.S.C. 154(b) by 539 days. (57) ABSTRACT The present invention relates to a method and a circuit of (21) Appl. No.: 12/209,037 controlling a speed of a brushless motor of a ceiling fan. The circuit includes a motor PWM duty consumption sampling (22) Filed: Sep. 11, 2008 unit and a motor speed sampling to sense a PWM duty and a speed of the brushless motor. A central processing unit is (65) Prior Publication Data provided to compare the PWM duty and the speed of the brushless motor to a preset maximum PWM duty and a preset US 201O/OO6O224A1 Mar. 11, 2010 maximum speed. When the PWM duty reaches to the preset maximum PWM duty first, the central processing unit sets the (51) Int. -
A Soft-Switched Square-Wave Half-Bridge DC-DC Converter
A Soft-Switched Square-Wave Half-Bridge DC-DC Converter C. R. Sullivan S. R. Sanders From IEEE Transactions on Aerospace and Electronic Systems, vol. 33, no. 2, pp. 456–463. °c 1997 IEEE. Personal use of this material is permitted. However, permission to reprint or republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. I. INTRODUCTION This paper introduces a constant-frequency zero-voltage-switched square-wave dc-dc converter Soft-Switched Square-Wave and presents results from experimental half-bridge implementations. The circuit is built with a saturating Half-Bridge DC-DC Converter magnetic element that provides a mechanism to effect both soft switching and control. The square current and voltage waveforms result in low voltage and current stresses on the primary switch devices and on the secondary rectifier diodes, equal to those CHARLES R. SULLIVAN, Member, IEEE in a standard half-bridge pulsewidth modulated SETH R. SANDERS, Member, IEEE (PWM) converter. The primary active switches exhibit University of California zero-voltage switching. The output rectifiers also exhibit zero-voltage switching. (In a center-tapped secondary configuration the rectifier does have small switching losses due to the finite leakage A constant-frequency zero-voltage-switched square-wave inductance between the two secondary windings on dc-dc converter is introduced, and results from experimental the transformer.) The VA rating, and hence physical half-bridge implementations are presented. A nonlinear magnetic size, of the nonlinear reactor is small, a fraction element produces the advantageous square waveforms, and of that of the transformer in an isolated circuit. -
The 1-Bit Instrument: the Fundamentals of 1-Bit Synthesis
BLAKE TROISE The 1-Bit Instrument The Fundamentals of 1-Bit Synthesis, Their Implementational Implications, and Instrumental Possibilities ABSTRACT The 1-bit sonic environment (perhaps most famously musically employed on the ZX Spectrum) is defined by extreme limitation. Yet, belying these restrictions, there is a surprisingly expressive instrumental versatility. This article explores the theory behind the primary, idiosyncratically 1-bit techniques available to the composer-programmer, those that are essential when designing “instruments” in 1-bit environments. These techniques include pulse width modulation for timbral manipulation and means of generating virtual polyph- ony in software, such as the pin pulse and pulse interleaving techniques. These methodologies are considered in respect to their compositional implications and instrumental applications. KEYWORDS chiptune, 1-bit, one-bit, ZX Spectrum, pulse pin method, pulse interleaving, timbre, polyphony, history 2020 18 May on guest by http://online.ucpress.edu/jsmg/article-pdf/1/1/44/378624/jsmg_1_1_44.pdf from Downloaded INTRODUCTION As unquestionably evident from the chipmusic scene, it is an understatement to say that there is a lot one can do with simple square waves. One-bit music, generally considered a subdivision of chipmusic,1 takes this one step further: it is the music of a single square wave. The only operation possible in a -bit environment is the variation of amplitude over time, where amplitude is quantized to two states: high or low, on or off. As such, it may seem in- tuitively impossible to achieve traditionally simple musical operations such as polyphony and dynamic control within a -bit environment. Despite these restrictions, the unique tech- niques and auditory tricks of contemporary -bit practice exploit the limits of human per- ception. -
Oscilloscope & Multimeter
INSTRUCTION OVERVIEW FOR Oscilloscope & Multimeter Stock No.64573 Part No.O20M/3C IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY TO ENSURE THE SAFE AND EFFECTIVE USE OF THIS PRODUCT. GENERAL INFORMATION These instructions accompanying the product are the original instructions. This document is part of the product, keep it for the life of the product passing it on to any subsequent holder of the product. Read all these instructions before assembling, operating or maintaining this product. This manual has been compiled by Draper Tools describing the purpose for which the product has been designed, and contains all the necessary information to ensure its correct and safe use. By following all the general safety instructions contained in this manual, it will ensure both product and operator safety, together with longer life of the product itself. AlI photographs and drawings in this manual are supplied by Draper Tools to help illustrate the operation of the product. Whilst every effort has been made to ensure the accuracy of information contained in this manual, the Draper Tools policy of continuous improvement determines the right to make modifications without prior warning. 1. TITLE PAGE 1.1 INTRODUCTION: USER MANUAL FOR: OSCILLOSCOPE & MULTIMETER Stock no. 64573 Part no. O20M/3C 1.2 REVISIONS: Date first published March 2015 As our user manuals are continually updated, users should make sure that they use the very latest version. Downloads are available from: http://www.drapertools.com/b2c/b2cmanuals.pgm DRAPER TOOLS LIMITED WEBSITE: drapertools.com HURSLEY ROAD PRODUCT HELPLINE: +44 (0) 23 8049 4344 CHANDLER’S FORD GENERAL FAX: +44 (0) 23 8026 0784 EASTLEIGH HAMPSHIRE SO53 1YF UK 1.3 UNDERSTANDING THIS MANUALS SAFETY CONTENT: WARNING! Information that draws attention to the risk of injury or death.