Pressure sensor including switchable sensor elements

Details Pressure sensor including switchable sensor elements Pressure sensor including switchable sensor elements

2011-04-19

2011-04-19

Allen, Andre J (Department: 2855)

Measuring and testing

Fluid pressure gauge

Electrical

C073S720000, C073S726000

Reexamination Certificate

active

07926353

ABSTRACT:
A semiconductor device includes a first sensor element in a first branch of a Wheatstone bridge and a second sensor element in a second branch of the Wheatstone bridge. The semiconductor device includes a first reference element in the first branch and a second reference element in the second branch. The semiconductor device includes a circuit configured to switch the first sensor element to the second branch and the second sensor element to the first branch.

REFERENCES:
patent: 4320664 (1982-03-01), Rehn et al.
patent: 6142021 (2000-11-01), Ross et al.
patent: 6357298 (2002-03-01), Draxelmayr et al.
patent: 7415885 (2008-08-01), Reinwald et al.
patent: 2008/0041164 (2008-02-01), Cottles et al.
patent: 2008/0223143 (2008-09-01), Murari et al.

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