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Tact measurement device for actuator and sensor signal detecting device

  • US 10,119,836 B2
  • Filed: 06/09/2015
  • Issued: 11/06/2018
  • Est. Priority Date: 07/07/2014
  • Status: Active Grant
First Claim
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1. A tact measurement device for an actuator, which measures a tact time taken for a movable member of the actuator to move from one end to another end of a movement range, comprising:

  • a first sensor disposed on the actuator and including a first light emitting body to output a first light emission signal;

    a second sensor disposed on the actuator and including a second light emitting body to output a second light emission signal;

    a detector that comprises a first detector and a second detector, the first detector detecting a first output signal that is defined by the first light emission signal and is output responsive to detecting, by the first sensor, that the movable member is positioned at the one end of the movement range, and outputs a first detection signal, and the second detector detecting a second output signal that is defined by the second light emission signal and is output responsive to detecting, by the second sensor, that the movable member is positioned at the other end of the movement range, and outputs a second detection signal; and

    a measurer that measures the tact time taken for the movable member to move from the one end to the other end of the movement range, based on the first detection signal and the second detection signal,wherein the first detector comprises a first output signal detector that detects the first output signal and outputs the first detection signal, and the second detector comprises a second output signal detecting unit that detects the second output signal and outputs the second detection signal.

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