Coriolis mass flowmeter with optical position sensors

Details Coriolis mass flowmeter with optical position sensors Coriolis mass flowmeter with optical position sensors

2007-11-15

2009-11-17

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

C073S861357

Reexamination Certificate

active

07617740

ABSTRACT:
Coriolis mass flowmeter comprising a flow tube, at least one tube position sensor provided with a light source and with a light detector for receiving light from the light source, and drive means for causing the tube to move about an axis, the above being arranged such that the tube or a projection fastened to the tube, for example a vane, moves through a light path between the light source and the light detector, wherein a first screen with a first light-transmitting opening is placed at the side of the light source and a second screen with a second light-transmitting opening is placed at the side of the light detector, wherein the first and the second opening are identical and are correspondingly oriented, and wherein the openings are mutually parallel and aligned so as to form a prismatic light beam on the detector.

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