Sensor-emulator evaluation module and method

Details Sensor-emulator evaluation module and method Sensor-emulator evaluation module and method

2007-10-09

2007-10-09

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

With auxiliary means to condition stimulus/response signals

C324S706000

Reexamination Certificate

active

11215788

ABSTRACT:
A bridge sensor emulator includes a first emulation circuit programmable to emulate an output signal of the bridge circuit under 11 conditions each including a different combination of applied stimulus and temperature. A second emulation circuit is programmable to emulate the temperature-sensing device for 3 temperatures. An excitation signal is applied to the first emulation circuit. One rotary switch is coupled to the first emulation circuit to select from it and emulate a bridge output signal. An emulated common mode sensor output voltage is also generated. Another rotary switch is coupled to the second emulation circuit to select from it and emulate one of three temperature output signals. In another embodiment, a microcontroller, nonvolatile memory, and three digital to analog converters are utilized to emulate the bridge sensor for the 11 conditions.

REFERENCES:
patent: 5461322 (1995-10-01), Bey et al.
patent: 2005/0256660 (2005-11-01), Laraia et al.

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