| 摘要 |
A drip detecting device for detecting drips dropping in a drip cylinder, includes an image detecting portion disposed in the vicinity of the outer wall surface of the drip cylinder for detecting the state in the drip cylinder as an image, and a drip detecting portion for detecting a drip dripping in the drip cylinder on the basis of the image. Disclosed also is a drip alarming device which includes a drip rate detecting portion for detecting the rate of dripping on the basis of the data detected by the drip detecting device, a determining portion for determining whether the detected dripping rate is proper, and a generating portion for generating an alarm in accordance with the result of the determination. A drip rate control device also is detected which has a drip rate detecting portion for detecting the rate of dripping on the basis of the data detected by the drip detecting device, and a drip rate control portion for controlling the drip rate to a required rate. The drip detecting device can detect drips without fail and without being affected by any change in the state of the drip cylinder and has a light-receiving portion which does not receive external disturbance light. These advantages are obtained also in the drip alarming device and the drip rate control device incorporating the drip detecting device.
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