Accession Number : AD0020566


Title :   A Variable Inductance Acceleration Transducer


Descriptive Note : Technical note


Corporate Author : ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (UNITED KINGDOM)


Personal Author(s) : Neubert, H K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/020566.pdf


Report Date : Aug 1953


Pagination or Media Count : 26


Abstract : The type IT 1-22F-31 transducer was designed for vibration measurements and resonance testing of aircraft on the ground and in flight. The ranges of the instrument are + or - 3 g and + or - 9 g, but it may be adapted for ranges up to about + or - 100 g. The transducer is used with the carrier bridge amplifiers types IT 1-5-51 and IT 1-6-51, which operate at a carrier frequency of 2000 c. The cutoff frequencies of the transducer are 70 c for the + or - 3-g range and 100 c for the + or - 9-g range. The deviation from linearity of calibration is less than 3% of full scale, and the effect of transverse accelerations is about 1.5% for full-range acceleration applied in a transverse direction. For an initial inductance level of 70 mh in each of the 2 identical coil subassemblies, the average full-scale variation in inductance is + or - 15%. The effect of cable capacitance are considered.


Descriptors :   *VIBRATION , *TRANSDUCERS , *CALIBRATION , TEST AND EVALUATION , FREQUENCY , ACCELERATION , VARIATIONS , INDUCTANCE , BRIDGES , UNITED KINGDOM , TRANSVERSE , CAPACITANCE , CARRIER FREQUENCIES , AMPLIFIERS , RESONANCE , INFLIGHT , LINEARITY , CABLES , AIRCRAFT , MEASUREMENT


Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE