Digital Measurement Techniques

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Digital Measurement Techniques

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by: T.S. Rathore


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Topics include: auto ranging circuit, voltage ratio meter, reciprocating curve, zero phase condition, sampling wattmeter, minimum total resistance, phase compensation method, hybrid multiplier, ith comparator, width converter, shunt reduction, digital ratio, digital phase meter, counting time interval, inverted ladder, shunt method, unknown capacitor, voltage transfer characteristic, programmable gain amplifiers, programmable amplifier, minimum spread, voltage transfer function, null frequency, converted gains, clockwise hysteresis

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First Sentence:
One of the methods of measuring an unknown quantity is to measure it in terms of a standard quantity of a known accuracy.



Table of Contents

Introduction: Why Digital Measurement at All? Philosophy of Digital Measurement. Software-Controlled Measurements. About Other Chapters.

Digital Time Measurement Techniques: Introduction. Measurement of a Time Interval between Two Events. Vernier Techniques for Small Time Interval Measurement. Measurement of Time Interval with Constraint. Measurement of a Periodic Time. Phase Measurement. Multi-Phase Sequence Indicator. Measurement of Time Interval between Two Events Defined by Voltage Levels. Measurement of Capacitance. Measurement of Quality Factor of a Ringing Circuit. Decibel Meter.

Digital Frequency Measurement Techniques: Introduction. Frequency Measurement. Measurement of the Ratio of Two Frequencies. Measurement of the Product of Two Frequencies. High Frequency Measurement. Average Frequency Difference Measurement. Power System Frequency Deviation Measurement. Fast Low-Frequency Measurement. Measurement of Low-Frequencies in a Narrow Band. Time Reciprocating Circuit. Fast Low-Frequency Measurement of Sinussoidally Varying Signals. Peak Frequency Measurement.

Digitally Programmable Circuits: Introduction. Digitally Programmable Resistors. Digitally Programmable Dividers. Minimal Digitally Programmable Gain Amplifiers. A General Gain Amplifier. Programmable Schmitt Triggers. Programmable Dual-Polarity Gain Amplifier. Programmable Gain Amplifier with Dual-Polarity Outputs. Two Stage Programming. Programmable Gain Amplifiers: Application. Programmable Gain-Constant Circuits. Programmable Notch Filters. Programmable Biquads.

Digital-to-Analog Converters: Introduction. Output-Input Relation. DACs Derived from Programmable Gain Amplifiers. Weighed-Resister DACs. Weighted-Current DACs. Weighted-Reference Voltage DACs. Ladder DACs. Switches. A Current Driven DAC. The Inverted Ladder DAC. Binary-Weighted Charge DAC. Input Output Formats of a DAC. Hybrid Multiplier and Divider.

Digital Voltage Measurement Techniques: Introduction. Indirect Type Analog-to-Digital Converters. Operations in Direct Type Analog-to-Digital Converters. Direct Type Analog-to-Digital Converters. Input Circuitry of a Digital Voltmeter.

Digital Voltage Ratiometric Measurement Techniques: Introduction. Ratiometric Measurement Technique. Applications.

Sampling Techniques: Introduction. Two Basic Theorems. Distinct Sampled Instants Theorem. Same Sampled-Magnitude Set Theorem. Correspondence between the Samples. Mean and RMS Value Theorem. Power Evaluation Theorem. Applications.

Book Description
Providing clear and easily understood explanations without sacrificing depth and completeness of presentation, Digital Measurement Techniques explores the basic principles of electronic instrumentation. The first edition filled the need for a comprehensive text on the subject. Completely revised and updated to include the latest techniques and instruments, the Second Edition takes its place as a standard text. Throughout the text, illustrative examples are provided to help students understand the theory and design philosophy. At the end of each chapter a set of problems is given to help students develop their skill in using the theory.

Book Info
Text introduces digital measurement techniques and measuring instruments. Material presented has been collected from various research journals and arranged in a cohesive order. Revised edition includes added material and end-of-chapter problems. For upper-level undergraduate and graduate-level students. Includes index and references.


Provides clear and easily understood explanations without sacrificing depth and completeness

Contains worked examples that illustrate the concepts within each chapter

Presents unsolved problems at the end of each chapter that allow students to master the techniques

Includes a detailed bibliography at the end of each chapter

Providing clear and easily understood explanations without sacrificing depth and completeness of presentation, Digital Measurement Techniques, Second Edition explores the basic principles of electronic instrumentation. The First Edition filled the need for a comprehensive text on the subject. Completely revised and updated to include the latest techniques and instruments, the Second Edition takes its place as a standard text. Throughout the text, illustrative examples are provided to help students understand the theory and design philosophy. At the end of each chapter a set of problems is offered to help students develop their skill in using the theory.

See what's new in the Second Edition:

· Software-controlled measurements

· Time interval measurement when the two events occur arbitrarily, and to indicate the order of occurrence, and a practical set up for the time interval measurement

· Micro-controller based phase meter and multi-phase sequence indicator

· Decibel meter

· Input circuitry of a frequency counter

· Measurement of low-frequencies in a narrow band

· Basics of ac bridges

· Quality and dissipation factor measurement by phase compensation technique

· Impedance measurement in the Cartesian coordinates form


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