Patent ID: 9654129
Date: 2017-05-16
CPC Classifications: G01D,G01R,H03M

Claim:
1. A signal processing device comprising: a plurality of resistance type sensors configured to detect predetermined physical quantities, and having resistances varying depending on the physical quantities; a detection circuit forming unit configured to select two or more predetermined resistance type sensors different for each time period from the plurality of resistance type sensors, and to form a predetermined resistance detection circuit including the two or more resistance type sensors that have been selected; a measuring unit configured to sequentially receive output signals from the resistance detection circuit that has been formed; and a computing unit configured to carry out an operation of linearly combining the output signals sequentially output from the measuring unit to compute the physical quantities, wherein the detection circuit forming unit is configured to form a circuit configured to convert output signals of the two or more predetermined resistance type sensors that has been selected into a voltage signal, and wherein the two or more resistance type sensors that have been selected are sensors that simultaneously detect either physical quantities of two or more axes orthogonal to each other or two or more types of physical quantities and change resistances depending on detected values.