Abstract
A system which measures the variation of underground water level in a bored hole using ultrasound is proposed. The principle of the measurement is the ultrasonic pulse echo method. A transducer is hung in the underground water and sends 1 MHz of ultrasound with a 50 μs pulse width upward to the water surface. The equipment has the ability to measure a depth of about 15 m with almost 3 cm resolution. An experiment using a telemeter system was carried out in a landslide area where there was much snow and no commercial power supply; the rising of the water level was observed with the thawing of the snow.
| Original language | English |
|---|---|
| Pages (from-to) | 115-117 |
| Number of pages | 3 |
| Journal | Japanese journal of applied physics |
| Volume | 25 |
| Issue number | S1 |
| DOIs | |
| Publication status | Published - 1986 Jan |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Cite this
Okuyama, D., Inoue, H., Yoshida, Y., Imano, K., & Abe, S. (1986). Development of a detector of variation of underground water level using ultrasound. Japanese journal of applied physics, 25(S1), 115-117. https://doi.org/10.7567/JJAPS.25S1.115