| 摘要 |
PROBLEM TO BE SOLVED: To provide an air pressure measurement apparatus capable of accurately measuring air pressure, by suppressing the effect of the offset voltage of a pressure sensor. SOLUTION: An air pressure controller includes a pressure sensor for detecting an air pressure of an air bag provided inside a seat; and a control circuit for correcting the output voltage obtained from the pressure sensor, when the air pressure of the air bag suctioned and exhausted by a suction and exhaust apparatus is detected with an output voltage obtained from the pressure sensor as an offset voltage, when the air pressure of the air bag is at atmospheric pressure. COPYRIGHT: (C)2011,JPO&INPIT |
