The fully automatic kinematic viscosity tester is an instrument used for accurately measuring the kinematic viscosity of liquids, widely used in industries such as petroleum, chemical, and pharmaceutical.

Technical analysis of fully automatic motion viscosity tester:

1. Measurement process

Sample loading: Inject the liquid to be tested into the capillary viscometer to ensure complete immersion of the liquid into the capillary.

Constant temperature control: The instrument is equipped with a built-in constant temperature system to control the sample at a specified temperature (such as 40 ° C, 100 ° C, etc.), eliminating the influence of temperature on viscosity.

Time measurement: The liquid is driven through a capillary tube by pressure or gravity, and a high-precision timer is used to record the time (t) of the liquid flowing through the capillary tube.

Data processing: Based on the capillary constant (C) and measurement time (t), automatically calculate and output the kinematic viscosity (ν).

2. Key technologies

Constant temperature system: adopting PID temperature control technology to ensure that the sample temperature is stable within ± 0.1 ° C, meeting high-precision measurement requirements.

High precision timing: using photoelectric sensors or pressure sensors to detect changes in liquid level, with timing accuracy up to milliseconds.

Capillary calibration: Calibrate the capillary constant (C) using standard liquids such as distilled water and standard oil to ensure measurement accuracy.

Automated control: The instrument can automatically complete sample loading, constant temperature, measurement, and cleaning, reducing human error.

3. Influencing factors

Temperature: Viscosity is closely related to temperature, and constant temperature control is the key to ensuring measurement accuracy.

Capillary cleanliness: The contamination of the inner wall of the capillary can change the flow resistance and requires regular cleaning and calibration.

Sample size: Insufficient sample size may lead to measurement errors, and it is necessary to ensure that the liquid completely covers the capillary tube.

4. Calibration and Verification

Calibration: Use standard liquids (such as distilled water, standard oil) for calibration to determine the capillary constant (C).

Verification: Verify the accuracy and repeatability of the instrument by repeatedly measuring standard samples.

5. Data output and interface

Instruments are usually equipped with display screens that directly display measurement results (viscosity values, temperature, time, etc.).

Supports data storage, query, and export functions, and some high-end models can be connected to computers or networks for remote monitoring and data analysis.

Application scenarios of fully automatic motion viscosity tester:

1. Petroleum industry: Measure the kinematic viscosity of crude oil, lubricating oil, and fuel oil to evaluate the quality of oil products.

2. Chemical industry: Analyze the viscosity characteristics of polymer solutions, solvents, coatings, and other liquids.

3. Pharmaceutical industry: Control the viscosity of drug formulations to ensure the stability of production processes.

4. Food industry: Measure the viscosity of foods such as oils and syrups, and optimize processing parameters.