| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a leakage detector such that sensitivity to vibration sound caused by water leakage in a synthetic resin pipe is high and an installation span can be increased, thereby enabling investigation of water leakage in the synthetic resin pipe with increased efficiency.SOLUTION: A leakage detector (1) is provided with: a base (11); a piezoelectric element (12) that is supported on the base (11) and converts vibration sound into an electric signal; and a weight (15) mounted on the piezoelectric element (12). The piezoelectric element (12) is formed of a polymer piezoelectric material.</p> |
