Apparatus for the opto-electrical determination of a measured va

Details Apparatus for the opto-electrical determination of a measured va Apparatus for the opto-electrical determination of a measured va

1977-02-22

1978-03-07

Swisher, S. Clement

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

250230, G01N 1114, G01B 1126

Patent

active

040772527

ABSTRACT:
An apparatus for the opto-electrical determination of a measured value or magnitude at a viscosimeter, especially at a rotational viscosimeter, wherein there is provided a rotatable body immersible in the medium to be measured and connected with the rotor of a motor and a shaft fixably connected for rotation with the stator of the motor and pivotably mounted against the action of the restoring force of a torsion spring. In order to obtain a series of light pulses which are independent of the measured magnitude and to also obtain a further series of light pulses dependent upon the measured magnitude, at least one reflector rotatably driven by a motor about an axis of rotation is arranged in spaced relationship from and essentially axially parallel to the pivotably mounted shaft which itself is equipped with a reflector and a stationary optical block or system is dispositioned in an appropriate geometric arrangement with respect to the rotatably driven reflector. The optical block comprises a light source producing a bundle of light rays directed at the rotatably driven reflector and a light receiver for processing the light pulses.

REFERENCES:
patent: 3122914 (1964-03-01), Stabe et al.
patent: 3443418 (1969-05-01), Tschudin
patent: 3533275 (1970-10-01), Zemp
patent: 3545257 (1970-12-01), Zemp et al.
patent: 3836260 (1974-09-01), Ulyanov et al.

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