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Radnoti Isometric Force Transducer
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The Radnoti 159901A transducer operates on the principle of converting picofarad capacitance changes into an amplified DC output voltage by means of a patented circuit (U.S. Patent Number 4142144).
The transducer consists of a stiff beam suspended between two capacitor plates. This forms a differential capacitor. Using this principal, the beam can be exceptionally stiff, approaching the ideal of measuring force without motion. As an example, for a force of 2 grams, the beam deflection is a maximum of only 5 microns in either the 2gm or 20gm range mode.
keyword : physiology, transducer, stimulator, electrode, radnoti
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