| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily align an optical axis between a transmitting device and a receiving device and to verify the consistency of measured data. SOLUTION: A light source 132 is fixed to a base 51 installed on the ground surface, and measuring light 3 is emitted toward a light receiver 24 fixed to a base 51 installed on an installation base 6. A vibration absorber 4 is attached at the tip of the leg of each base 51. An emission-direction fine-adjustment mechanism is installed at the light source 132, and a light emission direction can be finely adjusted. A light receiving plate is attached to the circumference of a light receiving part in the light receiver 24, and the optical axis can be aligned quickly and easily. An imaging means and a clocking means are installed at both receiving device and the transmitting device, images which have imaged a section to be imaged from both transmitting device and the receiving device are time-stamped, all line of sight shutoff measured data are recorded simultaneously, and the accuracy of the measured data can be enhanced.</p> |
