| 摘要 |
<p>A water-table detection system (1) has a seismic wave generation unit (2) and a remote detector unit (3). Sledgehammer (4) strikes hammer plate (5) to generate a trigger pulse P which is then output by transmitter (8) and tranmitted to the detector unit (3) for triggering of its operation. Detector unit (3) detects pulse P from unit (2), and electro-magnetic signals produced when the seismic waves from unit (2) interact with a soil-water interface (i.e. the water-table) within the ground for storage and processing.</p> |
