Vibrating type viscometer and liquid viscosity detection method thereof

Abstract

The invention provides a vibrating type viscometer and a liquid viscosity detection method thereof. The vibrating type viscometer comprises a fixing part, a vibrating elastic piece, a distance sensor,a driving device, a temperature detection device and a controller, wherein the distance sensor is located in the position, located between a fixed end and a free end of the vibrating elastic piece and close to the free end, on the fixing part, and after the free end of the vibrating elastic piece approaches the distance sensor for preset displacement, the distance sensor is triggered to be switched from one working state to another working state and electrical signals are sent out; the driving device comprises a driving circuit and a main driving body, and the driving circuit is controlled bythe controller and supplies a preset resonant frequency signal to the main driving body; the temperature detection device is used for detecting temperature of a detected sample; the controller is connected with the distance sensor and the driving device and used for keeping vibrational frequency of the driving device constant and collecting time intervals of the electrical signals of the distancesensor and temperature data of the sample. The vibrating type viscometer has the advantages that electromagnetic interference is avoided and a test result is stable.

Description

technical field [0001] The invention relates to a vibrating viscometer and a liquid viscosity detection method thereof. Background technique [0002] Viscosity is a physical quantity that expresses the internal friction that occurs inside the liquid when the liquid is flowing. It is the ability of the liquid to resist deformation and is an important indicator for identifying certain finished or semi-finished products. [0003] In actual engineering and industrial production, it is often necessary to detect the viscosity of liquids to ensure the best process operating environment and product quality, thereby improving production efficiency. By measuring the viscosity of the liquid in the process, the data of the rheological behavior of the liquid can be obtained, which has important guiding value for predicting the process control of the product process, the conveyability and the operability of the product during use. [0004] Viscosimeter (Viscosimeter) is an instrument use...

AI Technical Summary

Problems solved by technology

This vibrating viscometer has two sets of coils, one set of power coils, the power coils generate a magnetic field to excite the induction plate to vibrate, and the other set of coils is the detection coil, which senses the induced voltage transformation value generated by the permanent magnet on the induction plate in the detection coil , and then convert the induced voltage to the viscosity. Due to the presence of two sets of coils in this vibrating viscometer, the two sets of coils generate two magnetic fields, and interference between the two magnetic fields often occurs, making the measurement results unstable.

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