Angle measuring device

Details Angle measuring device Angle measuring device

1996-04-02

1998-09-29

Fulton, Christopher W.

Geometrical instruments

Miscellaneous

Light direction

33 1PT, 33534, 33538, G01B 730

Patent

active

058131248

ABSTRACT:
An angle measuring device used for measuring the pendulum angle of a cable of a lifting device comprising connection components which utilize measurement value pick-ups and are connected via a cardanic-type joint to axles which are arranged at right angles to one another. To attain high precision of discrimination in measurement, the measurement value pick-ups each comprises a Hall sensor and an associated magnetic element to create a magnetic field detectable by the Hall sensor. An angle of measurement can be attained if the lower connection component is swung and causes a shift in the joint ball around the axle. This results in a change in the position of the magnets relative to the Hall sensors. This change in position results in a change in the detected Hall voltage which after appropriate adjustment can be transformed into an angle measurement.

REFERENCES:
patent: 3128554 (1964-04-01), Borden
patent: 3829981 (1974-08-01), Vlasblom
patent: 4103842 (1978-08-01), Martin et al.

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