| 摘要 |
PURPOSE:To take out the detected result from an electrode band as a detected signal, by detecting the angle change of a body to be checked in correspondence with the resistance value between the base end of a resistor and the intermediate part thereof, which is changed in response to the angle change. CONSTITUTION:When a vehicle is positioned in a horizontal state, a bubble F is located on a radial line OQ2 in an insulating plate 29a within a tube part P. When the vehicle is inclined by a slant angle theta in one direction of right or left, a detecting mechanism 20 is inclined accordingly. The bubble F is relatively moved on a radial line OQr in the insulating plate 29a. Then a photoelectric film band 29 receives spot light from the bubble F at the upper part of the radial line OQr. Photoelectric conversion is generated in the light receiving part, and the part on the radial line OQr of a resistor band 27 is shorted to an electrode band 28. Thus a voltage Vr=rV/R=(1/2-theta/phi)V is obtained across both lead wires l2 and l3. The voltage is detected as a voltage, which specifies the slant angle theta in one direction. |
