| 摘要 |
PURPOSE: To use a transducer in water, by installing a ram in the transducer case, arranging a diaphragm on the downside of the transducer to move the ram as a function of labor pains, and making an opening far from the case for degassing or ventilating the inside. CONSTITUTION: The downside 10 of the transducer case 8 given a waterproof structure with an all-around sealing 9 is installed on the abdominal will and equipped with a soft diaphragm 11. On the diaphragm 11, a ram 3 is fitted and connected with a dynamometer 4. And, a ventilating hose 14 is arranged inside the cable, and one terminal of the hose is caused to penetrate together with the cable bushing into the inside 12 of the transducer case 8 and the other terminal guides the ventilating hose 14 with a cable-plug 15 and terminates itself near the socket of the plug 15. In this way, the transducer can be used even in the water, and measurement errors due to temperature variations can be minimized. |
