| 摘要 |
A system for detecting linear dimensions of mechanical workpieces (1) includes a checking probe (4) with detecting devices (13), a power supply battery (12) and a remote transceiver unit (8), while a stationary transceiver unit (10) is located at a distance from probe (4) and adapted for wireless transmitting to the remote transceiver unit and wireless receiving from it signals, for example, coded optical signals. More specifically, the stationary unit transmits activation and/or deactivation signals to the probe circuits, and/or the return to a "stand-by" low power for controlling the full power supply of the probe consumption state. The remote transceiver unit includes devices (F2, A2, MF1) adapted for achieving an automatic sensitivity control and other attenuation devices (FA) for preventing unwanted consumption of the probe battery energy due to noise signals, arriving, for example, from fluorescent lamps and causing the improper activation or deactivation of the probe circuits. |
