| 摘要 |
PURPOSE:To make it possible to inexpensively detect the azimuth of a moving body in low power consumption with high accuracy, by mounting a temp. sensor, an offset correction means and a scale factor correction means while correcting the characteristics of a rotary angle detection means high in temp. dependence. CONSTITUTION:To a gas rate sensor 7 for detecting a rotary angular speed, the temp. sensor 9 for measuring the circumferential temp. of said sensor 7 and the output signals thereof are sent into a microcomputer 20 through A/D converting circuits 13, 15 and respectively read by input buffers 12, 14. A clock pulse having a definite cycle is generated by a clock circuit 19 to apply interruption to CPU10 and a processing program is performed repeatedly at every definite cycle and a processing program including offset correction processing and scale factor correction processing, and a halfway operation result are stored in memory 11 and a final operation result is inputted to a display apparatus 18 through output buffer 17. |
