Environmental Testing Techniques for Electronics and Materials

Environmental Testing Techniques for Electronics and Materials

International Series of Monographs on Electronics and Instrumentation

1st Edition - January 1, 1962

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  • Authors: Geoffrey W. A. Dummer, Norman B. Griffin
  • eBook ISBN: 9781483135915

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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

Product details

  • No. of pages: 454
  • Language: English
  • Copyright: © Pergamon 1962
  • Published: January 1, 1962
  • Imprint: Pergamon
  • eBook ISBN: 9781483135915

About the Authors

Geoffrey W. A. Dummer

Norman B. Griffin

About the Editors

D. W. Fry

W. Higinbotham

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