INVESTIGATION OF TRANSDUCERS FOR HANDLING HARNESS PADS. WEAPON SYSTEM 133B.
Abstract
This report documents the design and testing of transducers which could be embedded in special Minuteman stage III motor handling harness pads and indicates the pressure these pads exert on the motor. Since excessive case pressure can be detrimental to motor performance, tests were conducted to determine the feasibility of measuring these pressures by mounting transducers in rubber pads and placing them at key points on the handling harness. Two transducer models were designed and tested in two different test setups. Design No. 1 used a single-arm strain gage with three completion resistors. Design No. 2 used a four-arm strain gage in a complete bridge. The investigation demonstrated that the transducers which were developed could be embedded in the harness pads and would indicate the pressure of the pads on the motor at any desired test point. Due to the hysteresis in the rubber, measurements made with these transducers could have an error as great as 15 percent. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 18, 1963
- Accession Number
- AD0427217
Entities
People
- J. R. Ehlert