| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge sensor capable of confirming electrically whether liquid is surely sent by a liquid transfer device such as a pump. SOLUTION: This discharge sensor comprises a non-conductor body having a penetration hole in the center and a conductor ball inside, a tubular upper conductor screwed with the upper part of the body and provided with a conductor spring on the lower end, a tubular lower conductor screwed with the lower part of the body and having a valve seat on the upper end, and upper and lower terminals in contact with the upper and lower conductors. The discharge sensor has a constitution having characteristics wherein conduction is acquired through the upper terminal, the upper conductor, the spring, the ball, the lower conductor and the lower terminal by pressing the ball to the valve seat by the spring, and conduction is removed by separation of the ball from the valve seat generated when liquid flows inside the lower conductor, the body and the upper conductor. COPYRIGHT: (C)2007,JPO&INPIT
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