Measuring and testing – Dynamometers – Responsive to force
Patent
1981-01-26
1983-06-07
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to force
73780, 361283, G01L 114
Patent
active
043865330
ABSTRACT:
A load transducer for sensing longitudinal tension includes a pair of deformable members with spaced-apart central portions, the spacing between which varies as a function of the longitudinal tension applied to the ends of the deformable members. The plates of a variable parallel plate capacitor are carried by insulating supports attached to each of the central portions. Alignment rods maintain the plates in parallel alignment. A circuit produces an output signal with a frequency proportional to the tension sensed by the draft sensor.
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Specification Literature from "National Semiconductor" for its LM231A Voltage-to-Frequency Converter.
Bluem Gary R.
Espiritu Santo Eugenio
Jackson Jeffrey A.
Kittle Carl E.
Kluge Douglas J.
Deere & Company
Ruehl Charles A.
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