Method and apparatus for simulating a potentiometer

Details Method and apparatus for simulating a potentiometer Method and apparatus for simulating a potentiometer

2009-03-13

2011-12-13

Riley, Shawn (Department: 2838)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C377S042000, C377S045000

Reexamination Certificate

active

08077067

ABSTRACT:
A contactless sensor utilizes analog and digital circuitry to provide direct interchangeability with a simple potentiometric sensor, matching all of the electrical properties of a potentiometer, including supply voltage range, power supply current, output voltage range, and having three connection terminals. The contactless sensor operates with voltages from 2 to 30 volts direct current, which includes all of the common industrial sensor power supply voltages: 5V, 10V, 24V, and +/− 15V. The contactless sensor utilizes a total current of less than 0.005 amperes, and its output voltage range includes the power supply rails. These improvements combine to enable the contactless sensor to be a direct replacement when a potentiometric sensor is removed from service.

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