Sensors, communication techniques, and related systems
First Claim
1. A control system, comprising:
- a sensor circuit configured to emit a simulated tachometer signal corresponding to a rotational speed as a proxy for an observed indicia of a presence or an absence of a leak;
a controller configured to receive the simulated tachometer signal and to infer from the simulated tachometer signal a presence or absence of a leak.
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Accused Products
Abstract
Leak detectors can have a sensor configured to detect a presence of a working fluid externally of a liquid-based heat-transfer system. The leak detector can also have an electrical circuit configured to emit a signal responsive to a detected presence of the working fluid externally of the liquid-based heat transfer system. Methods of detecting a leak of a working fluid from a liquid-based heat-transfer system can include sensing a presence or an absence of a working fluid externally of a liquid-based heat-transfer system. The methods can include generating a tachometer signal in correspondence with a sensed absence and a sensed presence of the working fluid. The methods can include monitoring the generated tachometer signal.
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Citations
28 Claims
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1. A control system, comprising:
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a sensor circuit configured to emit a simulated tachometer signal corresponding to a rotational speed as a proxy for an observed indicia of a presence or an absence of a leak; a controller configured to receive the simulated tachometer signal and to infer from the simulated tachometer signal a presence or absence of a leak. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of detecting a leak of a working fluid from a liquid-based heat-transfer system, the method comprising:
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sensing a presence or an absence of a working fluid externally of a liquid-based heat-transfer system; generating a tachometer signal in correspondence with the sensed absence or the sensed presence of the working fluid; and inferring from—
the generated tachometer signal a presence or an absence of the working fluid. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A control system comprising:
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a sensor configured to detect an indicia of a presence of a liquid, an absence of a liquid, or both; an electrical circuit operatively coupled to the sensor and configured to emit a tachometer signal indicative of a first rotational speed absent an indicated presence of the liquid and indicative of a second rotational speed responsive to an indicated presence of the liquid. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification