Automated ultrasonic solution viscometer

Details Automated ultrasonic solution viscometer Automated ultrasonic solution viscometer

1981-12-07

1984-04-10

Goldberg, Gerald

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

G01N 1106

Patent

active

044413580

ABSTRACT:
Apparatus and method are provided to automatically measure the viscosity of a solution. The apparatus employs at least two sets of piezo electric ultrasonic accoustical transducers mounted along the length of a modified viscosity tube. As the meniscus of the liquid being measured passes the first transducer, a timer is actuated. As the meniscus passes the second transducer, the timer is stopped. The measured time interval enables calculation of the solution viscosity. This invention provides highly improved accuracy and decreased test time for solution viscosity measurements, while eliminating the variables encountered in conventional optical or thermistor measurements resulting from the opacity or thermal conductivity of the liquid being measured.

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