TRANSDUCER FOR AMPLITUDE MEASUREMENT Russian patent published in 2004 - IPC

FIELD: supervisory equipment, applicable for measurement of the amplitude of low-frequency oscillations, for example, in fatigue tests of aircraft structures. SUBSTANCE: the tensoresistive motion transducer is made in the form of a flat spiral of uniformly contracting metal band of a permanent thickness. A measuring end-piece is rigidly fastened with the aid of blocks in the center of the spiral perpendicularly to its plane for motion on the guides. The transducer is fixed and is connected to the object under test through the measuring end-piece. Transducer deformation is registered by tensoresistors, which produce electric signals proportional to the torsional stresses. EFFECT: enhanced precision of measurements, expanded range of measurements of the stability results, enhanced reliability of transducer operation. 2 dwg