WAVE RECORDER INSTALLED AT CAMP JOSEPH H. PENDLETON, OCEANSIDE, CALIFORNIA.
Abstract
The Mk IX, Models 3 and 4 is made up of a differential pressure transducer, a pressure averaging system and a protective housing. The heart of the gage, the Bournes differential pressure transducer, consists of a pressure sensitive bellows linked to the moving wiper arm of an accurately wound 750 ohm potentiometer. The wiper at zero differential pressure rests at the middle of the resistance winding. When a differential pressure is applied to the bellows, the wiper departs from this position a distance proportional to the applied pressure difference. This change in wiper position is converted to the applied pressure difference. This change in wiper position is converted to a proportional current in an electronically stabilized bridge circuit and is recorded on a recording miliameter. To insure long life of the potentiometer, the resistance winding is submerged in oil for cooling. A flexible diaphragm is provided to hold the oil in place but allow the transmission of pressure through the oil to one side of the transducer bellows. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1953
- Accession Number
- AD0223864
Entities
People
- Michael J. W. Hall
Organizations
- University of California, Berkeley