Accession Number:

ADP002693

Title:

Testing Techniques Involved with the Development of High Shock Acceleration Sensors

Descriptive Note:

Corporate Author:

ENDEVCO CORP SAN JUAN CAPISTRANO CA

Personal Author(s):

• Sill, Robert D.

Report Date:

1983-06-01

Pagination or Media Count:

18.0

Abstract:

This paper describes testing techniques and equipment used in the development of Endevco Model 7270 Shock Accelerometer, having a range beyond 100,000 g nad a mounted resonant frequency on the order ot a megahertz. Conventional testing techniques proved inadequate for thorough evaluation. A new calibration system based on the Hopkinson bar has been developed to give rigorous and accurate tests to determine sensitivity, amplitude linearity and zero shift due to accelerations beyond the transducers designed full scale acceleration level. A related but smaller apparatus was developed to determine resonant frequency and also, although to a very rough degree, the frequency response of the accelerometer. It provided the means to create sub-microsecond rise time strain waves to excite an accelerometers resonant frequency.

Descriptors:

• *ACCELEROMETERS
• *TEST METHODS
• *TRANSDUCERS
• CALIBRATION
• RESONANT FREQUENCY
• SHOCK

Subject Categories:

• Electrical and Electronic Equipment
• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE