Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1986-12-12
1988-03-08
Levy, Stewart J.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
G01N 1116
Patent
active
047292377
ABSTRACT:
A vibration-type viscosity measuring apparatus having a pair of vibrator subassemblies that can be resonated as a tuning fork. Each of the pair of vibrator subassemblies constituting a tuning fork has at its free end a sensor plate comprised of a thin metal plate to be inserted into a sample. Each vibrator subassembly has a center line of vibration about which the vibrator subassembly vibrates and a center of gravity aligned on the center line of vibration. A detector is provided for detecting electrically the vibration amplitude of the vibrator subassemblies that are driven together with the sensor plates at the same frequency in reverse phase relation to each other. The vibration amplitude is changed due to the viscosity resistance of the sample applied to the sensor plates. A thermometer probe is provided at the intermediate point between the sensor plates and can be inserted together with the pair of sensor plates into the sample thereby simultaneously measuring the viscosity and the temperature of the sample.
REFERENCES:
patent: 4602505 (1986-07-01), Kanda et al.
Hayashi Mitsuroh
Ishiwata Syousuke
Suzuki Osamu
Adams Bruce L.
Chichibu Cement Kabushiki Kaisha
Levy Stewart J.
Roskos Joseph W.
Wilks Van C.
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