Position Sensing - 1st Edition - ISBN: 9780750611572, 9781483193786

Position Sensing

1st Edition

Angle and Distance Measurement for Engineers

Authors: Hans Walcher
eBook ISBN: 9781483193786
Imprint: Butterworth-Heinemann
Published Date: 31st March 1994
Page Count: 268
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Position Sensing: Angle and Distance Measurement for Engineers focuses on the electrical measurement of angles and distances.

The publication first elaborates on industrial principles and sensors and measurement systems. Discussions focus on measurement technology, terms used in information technology, methods of measurement, analogue angle and displacement sensors, features of processes using a digital-incremental measurement base, electromechanical position sensing systems, and capacitive scanning. Carrier frequency scanning, electromagnetic pulse generator, photoelectric position sensing systems, distance measurement by the pulse-time delay method, laser gyroscope, and systems with analogue measurement and subsequent analogue-to-digital conversion are also discussed.

The manuscript then examines intelligent sensors and connection of measurement systems. Topics cover electrical couplings for fine and coarse measurement systems, mechanical links for converting longitudinal to angular motion, general properties of intelligent sensors, and interconnection of intelligent sensors.

The text is highly recommended for mechanical engineers and measurement and control technicians.

Table of Contents


1 Introduction

2 Principles

2.1. Measurement Technology

2.1.1 Units

2.1.2 Errors of Measurement and Accuracy

2.2 Terms Used in Information Technology

2.3 Methods of Measurement

3 Industrial Sensors and Measurement Systems

3.1 Analogue Angle and Displacement Sensors

3.1.1 Position Indication Using Gravity

3.1.2 Resistance Transducers

3.1.3 Capacitive Transducers

3.1.4 Inductive Transducers

3.2 Features of Processes Using a Digital-Incremental Measurement Base

3.2.1 Direction Recognition and Signal Multiplication

3.2.2 Signal Multiplication with Sinusoidal Output Signals

3.2.3 Reset Pulse/Reference Signal

3.3 Electromechanical Position Sensing Systems

3.4 Capacitive Scanning

3.5 Carrier Frequency Scanning

3.6 Electromagnetic Pulse Generator

3.7 Photoelectric Position Sensing Systems

3.7.1 Radiation Sources

3.7.2 Photodetectors

3.7.3 Signal Recognition in Photoelectric Scanning

3.7.4 Measurement Processes Using Static Scanning Reticules

3.7.5 Dynamic Photoelectric Grid Scanning

3.7.6 Length and Angle Encoders with Phase Grating

3.8 Systems Using a Digitally Absolute Measurement Base

3.8.1 Coding

3.8.2 Double Scanning

3.8.3 Special Forms of Double Scanning

3.8.4 Scanning with Preselection

3.8.5 Absolute Shaft Encoders

3.8.6 Linear Encoders

3.8.7 Mechanical Digital Position Sensors

3.9 Distance Measurement by the Pulse-Time Delay Method

3.9.1 Ultrasonic Length Measurement Systems

3.9.2 Ultrasonic Measurement in Air

3.9.3 Laser Distance Measurement

3.10 Laser Interferometer

3.11 Laser Gyroscope

3.12 Systems with Analogue Measurement and Subsequent Analogue-To-Digital Conversion

3.12.1 Distance Measurement with Differential Capacitor

3.12.2 Resolvers

3.13 Inductosyn

3.14 Accupin

3.15 Static Scanning of Magnetized Scales

4 Intelligent Sensors

4.1 General Properties of Intelligent Sensors

4.2 Interconnection of Intelligent Sensors

4.2.1 Series Data Transmission via Bus

4.2.2 Bus Protocol

4.3 An Intelligent Sensor for Angle and Distance Measurement

5 Connection of Measurement Systems

5.1 Mechanical Links for Converting Longitudinal Angular Motion

5.2 Mechanical Attachments for Angle Measurement Systems

5.3 Electrical Couplings for Fine and Coarse Measurement Systems




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© Butterworth-Heinemann 1994
eBook ISBN:

About the Author

Hans Walcher

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