| 摘要 |
<p>PURPOSE:To enable execution of highly precise computation of strain by conducting the computation of strain for a prescribed time with an output signal from a laser range finder masked, even when detection of a signal is stopped during the detection. CONSTITUTION:When a laser range finder 6 outputs an alarm signal, an alarm signal detecting circuit 36 detects the alarm signal made to bypass a low-pass filter (LPF) 11 thereby and outputs a signal of detection of the alarm signal to a first arithmetic unit 13. The signal detecting circuit 36 outputs the signal to the first arithmetic unit 13 continuously during the detection of the alarm signal, while the arithmetic unit 13 processes distance data as a blank continuously during reception of that signal. Although the signal detecting circuit 36 stops the signal output when the alarm signal is stopped, the first arithmetic unit 13 processes the distance data collected through the LPF, as the blank, also thereafter for a time corresponding to the time constant of the LPF 11. Based on the data blanked partially, each sort of computation of strain can be executed by a second arithmetic unit 16.</p> |
