| 摘要 |
<p>PURPOSE:To reduce an estimated error of response time, by installing respective block capable of removing super-low frequency component and specified frequency component and silencing process noise affecting the response time of sensor. CONSTITUTION:A signal of a sensor 2 is stored in a data-storing apparatus 11 through isolators 7. BPF8, amplifier 9 and A/D convertor 10 of a diagnosing apparatus 200. Data derived from the storing apparatus 11 are added to a block 100 to remove a super-low frequency component consisting of HPF and the super-low frequency component is removed from the necessary data. Further, output data of the block 100 are supplied to the block 200 to remove the specified frequency component for removing the specified frequnecy with a clear gain. And, filter processing of process noise affecting response times of the sensor 2 is performed by the blocks 100, 200 and calculation by a self-covariance computer 13 and the calculated value is added to a comparator 17 through blocks 14, 15, 16 for detection of an abnormal sensor response and reduction of an estimated error of the response time.</p> |
