Test on Instantaneous Type Shaft Revolution Indicator System
Abstract
The system was set up at this Laboratory and closely observed while under the endurance, accuracy, and shock tests. Total revolutions of the port and starboard shaft transmitters and the master indicators were recorded and compared daily. Both transmitters were rotated ahead at approximately 250 r.p.m. (revolutions per minute) for a period of 500 hours. The direction of rotation of both shafts was reversed for one hour during each day of the test. A careful examination was made of the instruments to ascertain whether the material submitted was in strict accordance with the specifications in the matter of materials, design, workmanship, dimensions, markings, etc. The instantaneous type shaft revolution indicator system, as submitted by the Pitometer Log Corporation, New York, N.Y., and covered by this report, is considered superior in simplicity, method of r.p.m. indications, ruggedness, accuracy, quietness of operation, and design to any other type of shaft revolution systems observed by this Laboratory.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 10, 1934
- Accession Number
- AD1144640
Entities
People
- W. B. Roberts
Organizations
- United States Naval Research Laboratory