| 摘要 |
PURPOSE:To detect an angular velocity with high precision by making offset correction of an angular velocity detection signal be conducted by reading out an offset value in accordance with the internal temperature of a table for which the offset value is set beforehand in accordance with the temperature. CONSTITUTION:The main body of a detector is put in a thermostat 24 and heated forcedly by heater wires 25 wound round helically on a casing 8 and a support tube 23 respectively. While the internal temperature of the main body of the detector is detected by a temperature sensor 26, a heating control is executed by the heater wires 25 so that the detected temperature be always a temperature set beforehand. Every time when a moving body stops in the state wherein the inside of the main body of the detector is kept at the set temperature, an output of the angular velocity detector 2 at that time is stored as an offset value with a nonvolatile memory 5 updated, and according to the offset value stored in this memory, offset correction of an angular velocity detection signal at the time of movement of the moving body is executed. |
