| 摘要 |
<p>A drip detecting device for detecting drips dropping in a drip cylinder (4), comprises an image detecting portion (5) disposed in the vicinity of the outer wall surface of the drip cylinder (4) for detecting the state in the drip cylinder as an image, and drip detecting portion (6) for detecting a drip dripping in the drip cylinder on the basis of the image. Disclosed also is a drip alarming device which includes drip rate detecting portion for detecting the rate of dripping on the basis of the data detected by the drip detecting device (6), determining portion for determining whether the detected dripping rate is proper, and generating portion for generating an alarm in accordance with the result of determination. A drip rate control device also is disclosed comprising a drip rate detecting portion for detecting the rate of dripping on the basis of the data detected by the drip detecting device (6), and drip rate control portion for controlling the drip rate to a required rate. The drip detecting device (6) can detect drips without fail and without being affected by any change in the state of the drip cylinder (4) and has a light-receiving portion which does not receive external disturbance light. <IMAGE> <IMAGE></p> |
