DEVELOPMENT OF AN INDUCTANCE TYPE ACCELEROMETER FOR USE IN A FREQUENCY MODULATED RECORDING SYSTEM
Abstract
The development, characteristics, and calibration of an inductance type accelerometer is described. The mechanical features of this accelerometer are characterized by a mass unit suspended by a double cantilever-beam spring system. An excursion of this mass unit changes to gap spacing of a Mu Metal pad relative to an E coil. The resulting change in reluctance of the magnetic circuit produces an inductance element in the tank circuit of an FM oscillator. An acceleration of the mass unit results in an FM of the carrier frequency of the FM system. Accelerometers were produced with the following characteristics: a range of 0.1 to 38 g, a damping of 0.5 to 0.7 critical, a frequency shift of + or - 7.5% at full range, and an accuracy of better than 5%. Calibration techniques include the use of a tilt table spin table, and shake table.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 24, 1953
- Accession Number
- AD0012914
Entities
People
- Benjamin Sussholz
Organizations
- Naval Ordnance Laboratory