a website collaboration between Science Service and the Smithsonian Institution

1937 - sound proof room for testing motors, note the operator using the decibel meter

SOUND PROOF TESTS

CD 1966062 E&MP31.031

Electric Motors

Nov. 1937

Sound proof room for testing of special motors.

Note the operator using the decibel meter. The motors are coupled to a machine (located outside the room) to simulate actual operating conditions for the noise testing. 


Original Caption by Science Service
Westinghouse



National Museum of American History

Home

Search - Site Map - Subjects to Choose From - Numbering Format

Credits - Copyright - Comments