Test on Six-Inch a.c., 60 Cycle Vibrating Bell Submitted by Chas. Cory Corporation
Abstract
The bell was set up at this Laboratory in a standard test circuit and closely observed for its operating characteristics while under test for endurance, over and under voltage and frequency, inclination, and shock. The usual tests for current consumption, power factor, Insulation resistance, dielectric strength, audibility range, and watertight integrity then followed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 21, 1935
- Accession Number
- AD1147449
Entities
People
- J. S. Bryant
- W. B. Roberts
Organizations
- United States Naval Research Laboratory