Viscosity measuring method
专利汇可以提供Viscosity measuring method专利检索，专利查询，专利分析的服务。并且PURPOSE: To make it possible to measure viscosity by remote control ans secure the explosion-proof property, by bringing a vibrator into contact with a measured medium and by utilizing that the Q value of resonance of this vibrator changes based on the viscosity of the medium.
CONSTITUTION: Vibrator 2 consisting of a dielectric which has a pyroelectric property as well as a piezoelectric property is so arranged that it may be brought into contact with measured medium 1. The control part is provided with the first light source 7, the second light source 8, photo detector 9, and Q value meauring part 10. When the light from the first light source is irradiated to vibrator 2, mechanical vibration is excited through the piezoelectric effect because of change of spontaneous polarization dependent upon the pyroelectric effect. Then, the Q value of resonance at this time is changed by viscosity of measured medium 1 brought into contact with vibrator 2. Consequently, the light from the second light source 8 is modulated by vibrator 2, and the Q value is obtained from this modulation degree, so that viscosity of measured medium 1 can be measured.
COPYRIGHT: (C)1980,JPO&Japio，下面是Viscosity measuring method专利的具体信息内容。
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6 热电元件
