| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Research Abstract |
The measurement of liquid level on the millimeter scale or less has become an important subject in biological and chemical fields. As an alternative to the well -known pulse-echo method, we have presented a new technique that employs a piezoelectric thickness vibrator operating in a trapped-energy mode for detecting a small-scale variation in liquid level. The variation in the electric conductance G with the liquid level has been observed by experiments and also by theoretical analysis using an equivalent-network model, and the feasibility of the sensing device is confirmed.
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