Environmental Testing Techniques for Electronics and Materials - 1st Edition - ISBN: 9780080135144, 9781483135915

Environmental Testing Techniques for Electronics and Materials

1st Edition

International Series of Monographs on Electronics and Instrumentation

Authors: Geoffrey W. A. Dummer Norman B. Griffin
Editors: D. W. Fry W. Higinbotham
eBook ISBN: 9781483135915
Imprint: Pergamon
Published Date: 1st January 1962
Page Count: 454
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Description

Environmental Testing Techniques for Electronics and Materials reviews environmental testing techniques for evaluating the performance of electronic equipment, components, and materials. Environmental test planning, test methods, and instrumentation are described, along with the general environmental conditions under which equipment must operate. This book is comprised of 15 chapters and begins by explaining why environmental testing is necessary and describing the environment in which electronics must operate. The next chapter considers how an environmental test plan is designed; the methods for the environmental testing of components and materials; instrumentation and control of test chambers; shock and vibration test instrumentation; and requirements for specification writing. The reader is then introduced to factors that might affect the reliability of equipment, including high humidity environment; galvanic corrosion problems; high- and low-temperature environments; mechanical and associated hazards; transport hazards; and long-term storage. Problems posed by high altitude and space environments, nuclear radiation, and acoustic noise are also discussed. The final chapter is devoted to environmental protection techniques and looks at the effects of climatic environments on radio interference as well as the effects of the environment on the human operator. This monograph will be of value to materials scientists and electronics engineers as well as those engaged in the design, development, and production of professional and military equipment.

Table of Contents


Preface

Acknowledgments

Chapter 1. the Need for Environmental Testing

The Role of and Environmental Test Department

General Procedure In Testing

Chapter 2. General Environmental Conditions

Climatic Conditions

The Upper Atmosphere Environment

Classes of Environment

Environmental Stresses

Chapter 3. Test Planning, Test Methods and Instrumentation

Designing and Environmental Test Plan

Methods for the Environmental Testing of Components and Materials

Instrumentation and Control of Test Chambers

Shock and Vibration Test Instrumentation

Requirements for Specification Writing

Chapter 4. High Humidity Environment

The Problems of the Humidity Environment

Humidity Testing

Comparison Between the Natural and Synthetic Tropical Tests

Composition of the Water Used In Humidity Chambers

A Device for Permeability Rate Measurement

Dehumidification

Evaluation of Plastics in High Temperatures and Humidity

Design of a 500 ft3 Tropical Test Chamber

Chapter 5. Galvanic Corrosion Problems

Galvanic Design of Facilities for the Salt Spray Corrosion Test

Corrosion In Communication Equipments

Chapter 6. High Temperature Environments

Air Temperature and Solar Radiation Effects

Effects On Equipment

Electronic Materials at Elevated Temperatures

Environmental Testing of Gears at Elevated Temperatures

Temperature Measuring Techniques

Temperature Indicating Devices

Thermistors

Design of High Temperature Test Chambers

A Chamber for the Study of Human Thermal Tolerance

Laboratory Simulation of Solar Radiation

Simulation of Aerodynamic Heating by Pyrotechnics

Simulation of and Aircraft Flight Profile

Chapter 7. Low Temperature Environments

Effects of Low Temperature

Design of Low Temperature Test Chambers

Low Temperature Control by a Thermistor

Testing Pneumatic Components at Low Temperature

Chapter 8. Mechanical and Associated Hazards and Their Effects

Shock

Vibration

Mechanical Design of Equipments

Design of a 500 lb 10-120 c/s Vibration Machine

Random Vibration Testing

Combined Environments Testing

Combination of Vibration and Sustained Acceleration

Selection of Components by Vibration Testing

The Air Shock Tube as a Testing Facility

Missile Equipment and Component Testing on Rocket Sleds

Vibration and Shock Peak Reading Meter

Mechanical Evaluation of Soldered Joints

Chapter 9. Transport Hazards and Packaging Techniques

Climatic Hazards

Equipment Transit Fragility Assessment

Torsion Bar Cushioning Units

Transit Shock Recorder

Bulk Packaging Materials

Evaluation of Packaging Testing Systems

Impact Testing Machines

Calibration of Impact Testing Equipment

Transit Packaging Materials

Measurement of the Dynamic Properties of Packaging Materials

Dynamic Performance of Cushioning Materials at Low Temperatures

Chapter 10. Long Term Storage

Effects of Storage Environments on Equipment Reliability

Effect of Storage on Cushioning Materials

Controlled Venting of Containers

Breathing Tube Desiccators

Chapter 11. High Altitude and Space Environments

Consideration of the Environments

Arcing at High Altitudes

Analysis and Elimination of Corona Effects

Leak Detection Using a Radioactive Gas

Measurement of Gas Pressure. Part 2: Simulation of Space Environments

Radiation Environment in Space

Thermal Environment in Space

Orbital Simulations

Simulating the Thermal

Vacuum Environment of a Satellite

Environmental Test Specifications for Satellites

Effects of Ultra-Violet and Vacuum Environments on Plastics

Chapter 12. Nuclear Radiation Environments

Effects of Nuclear Radiation on Electronic Components and Materials

Transient Radiation, Effects and Tests

Chapter 13. Acoustic Noise Environments

Acoustic Wide-Band Noise Generator

Random Noise Testing Using and Air Jet

Effects of Acoustic Noise on Components

Chapter 14. Materials Under Environmental Stresses

Contact and Resistive Materials

Certain Effects of Materials

Surface Conductivities of Sealing Glasses

Solders

Soldered Joints In Aluminum and Mechanism of Corrosion

Chapter 15. Environmental Protection Techniques

Environmental Protection

Effects of Climatic Environments on Radio Interference

Effects of the Environment on the Human Operator

Annotated Bibliography

1. General

2. Environmental Engineering for Space

3. Shock and Vibration

4. Acoustic Noise Vibration

5. Transit and Packaging

6. Instrumentation and Measurements

7. Environmental Effects on Materials

8. Reliability Testing

9. Reliability of Equipment

10. Maintenance

Index

Details

No. of pages:
454
Language:
English
Copyright:
© Pergamon 1962
Published:
Imprint:
Pergamon
eBook ISBN:
9781483135915

About the Author

Geoffrey W. A. Dummer

Norman B. Griffin

About the Editor

D. W. Fry

W. Higinbotham