Falling ball acoustic calibrator

Made:
1980-1990
maker:
Dawe Instruments Limited
Falling ball acoustic calibrator, by Dawe Instruments Ltd

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Falling ball acoustic calibrator, by Dawe Instruments Ltd
Science Museum Group
© The Board of Trustees of the Science Museum

Falling ball acoustic calibrator, by Dawe Instruments Ltd, type 1417A, serial no 5716 (90dB at 10cm), 1980-90.

Details

Category:
Environmental Science & Technology
Object Number:
1997-1700
type:
acoustic calibrator
credit:
Mr. W. Pope