HUMAN RESPONSE RELATED TO MEASURED SOUND PRESSURE LEVELS FROM ULTRASONIC DEVICES
An investigation was conducted to correlate subjective human response to the sound pressure levels produced by ultrasonic devices. Since little experimental information was available with respect to possible effects on the human ear, it was desired to obtain more with regard to noise levels and human response. The resulting information could be used as a guide for evaluating noise levels where ultrasonic devices might be used safely, and in the desirability for noise control. Noise levels up to 40,000 cps were measured with a Bruel and Kjaer audio frequency spectrometer (Type 2109) and recorder in third octaves starting at 10,000 cps. The results indicate that at or above 90 db individuals give a subjective response. A summary of individual response compared to noise levels is shown. (auth)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
- DOE Contract Number:
- AT(45-1)-1350
- NSA Number:
- NSA-18-021704
- OSTI ID:
- 4004349
- Report Number(s):
- HW-SA-3028; CONF-84-3
- Resource Relation:
- Other Information: From American Industrial Health Conference, Cincinnati, May 1963. Orig. Receipt Date: 31-DEC-64
- Country of Publication:
- United States
- Language:
- English
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