136 ITOガラス電極を用いた微小ERデバイス内の液晶の流量算定(S34-3 複雑流体の流れとその応用(3),S34 複雑流体の流れとその応用)  [in Japanese] 136 Flow Rate Estimation of Liquid Crystal in Minute ER Devices with ITO Glass Electrodes  [in Japanese]

We have examined a new method of flow rate evaluation from the optical pattern of liquid crystal flow in a minute ER channel. The two-dimensional channel consists of two ITO glass electrodes, and two cases with a stripe-patterned electrode and no patterned one were tested in the low flow rate condition. A tail shaped patterns were observed in the just downstream of the pattern and the length of the tail has a good correlation with the flow rate. Moreover, the average brightness obtained with no patterned electrode was also helpful for the flow rate evaluation.