自動粘度計測量時間原理-液體液面光電傳感

Optoelectronic sensing of the liquid meniscus液體液面光電傳感

The near-infrared light which is generated in LEDs located in the upper section of the measurement stand is conducted through a glass-fibre light-conductor cable onto the measurement planes. The light shines through the viscometer before it arrives at another light- conductor cable located on the opposite side; inside this second cable, the light is conducted to a receiver in the upper section of the measurement stand.

While the liquid meniscus passes through the measurement planes, the lens -like effect of the meniscus causes a short-term darkening of the light beam, followed by a magnification. This process generates a measurement signal which can be evaluated accurately.

自動粘度計測量時間原理-液體液面光電傳感

測量位的上部的LED所產生的近紅外光通過玻璃纖維光導電纜進行到測量平面。通過粘度計的光線照射之前它到達位于相反側的另一輕型芯電纜;此**電纜內時，光被在測量臺的上面部分傳導到一個接收器。

而液體彎月面通過測量平面中，透鏡式的彎月面的作用下會導致光束瞬時變暗，接著就變大。這個過程產生能夠**地進行評估的測量信號。