Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Patent
1990-01-11
1991-03-26
Ro, Bentsu
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
335272, 350274, 318565, G02B 2600
Patent
active
050032399
ABSTRACT:
An encoder wheel (60) is provided for monitoring a peristaltic pump (20). The encoder wheel (60) provides a plurality of equispaced sectors (62) and a reference sector (66) provided at the outer radius of the encoder wheel (60). A vane slit (68) is provide radially offset from the sectors (62,66). A pair of optical couplers (72,74) are provided to read the sectors (62,66) and the vane slit (68).
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Ishikawajima-Harima Eng. Rev. (Japan), "IHI Rotary Encoder", vol. 16, No. 6 (Nov. 1976).
Bowman George A.
Matthews Joseph B.
Baxter International Inc.
Flattery Paul C
Price Bradford R. L.
Ro Bentsu
Schaafsma Paul E.
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