Claims
- 1. A viscosity detector comprising:
- a vibration transmission shaft having a first end, a second end, and a central longitudinal axis;
- a torsional vibrator connected to said first end of said vibration transmission shaft so as to impart a circular vibration to said vibration transmission shaft, said vibration member comprising a piezoelectric element;
- a liquid detector connected to said second end of said vibration transmission shaft such that said circular vibrations from said torsional vibrator are transmitted to said liquid detector;
- a spring member having a first end fixedly secured at an intermediate position of said vibration transmission shaft at a vibration node between said vibration member and said liquid detector, and a second end axially spaced from said first end and radially spaced from a peripheral surface of said vibration transmission shaft;
- a support element connected to said second end of said spring member; and
- an inertial mass connected to said first end of said vibration transmission shaft along the central axis thereof,
- wherein said torsional vibrator causes said first end of said vibration transmission shaft to vibrate in one direction and said second end of said vibration transmission shaft to vibrate in the opposite direction, and said inertial mass is capable of balancing rotational momentum of said vibration member and said detector.
- 2. The viscosity detector as claimed in claim 1, wherein said spring member comprises a cylindrical member.
- 3. The viscosity detector as claimed in claim 1, wherein said spring member comprises a pair of leaf springs.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7-081846 |
Mar 1995 |
JPX |
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Parent Case Info
This application is a continuation of now abandoned application, Ser. No. 08/614,475, filed Mar. 13, 1996.
US Referenced Citations (9)
Continuations (1)
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Number |
Date |
Country |
Parent |
614475 |
Mar 1996 |
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