Product introduction
Wuhan UHV Power Technology Co.,Ltd., is a professional manufacturer and supplier of high-voltage power testing equipment in China.The Fully Automatic Surface Tension Tester is a key tool used in modern laboratories for precise, efficient, and convenient measurement of liquid surface tension and interfacial tension. It achieves complete automation of the measurement process by integrating precise mechanical control, sensitive sensing technology (mechanical or optical), and powerful intelligent software, significantly improving data accuracy and repeatability, freeing up manpower, and expanding the possibilities of complex experiments. Its application covers many scientific research and industrial fields such as chemical, pharmaceutical, materials, food, energy, etc. It is an indispensable tool for understanding and controlling interface phenomena. With the development of technology, its level of automation, intelligence, and application scope are still constantly improving.
Product Features
1,The Surface Tension Tester manufacturer adopts a color touch screen display and a non-marked button with full Chinese character menu prompts.
2,It has a high degree of automation, reliable work, good repeatability, and extremely simple operation.
3,All tests can be completed by simply pressing the menu prompts after turning on the machine.
Technical Parameters
| Measuring range | 2~200 millinewtons/m |
| Sensitivity | 0.1 millinewtons/meter |
| Accuracy | 0.1 millinewtons/meter |
| Resolution | 0.01 millinewtons/m |
| Repeatability | 0.3% |
| Applicable temperature | 10~30℃(typical value:25℃) |
| Applicable humidity | (20~75)%RH |
| Power supply | AC 220V±5% 50Hz |
| Power | 20VA |
| Dimensions | 185×260×360(mm) |
| Weight | 15kg |
Working principle
The working principle of this instrument is to apply the high-frequency induction small displacement automatic balance measurement system to the torsion balance. When the force acting on the platinum ring changes, the balance rod connected to the platinum ring will produce displacement in the two eddy current probes, causing the inductance generated in the two eddy current probes to change. This will cause the differential transformer to lose balance, and the input signal of the differential amplifier in the circuit will also lose balance. After amplification by the amplifier, an electrical signal that changes with the force on the platinum ring will be output. This signal is sent to the microprocessor for processing, and the actual tension of the tested sample will be automatically calculated according to international GB6541.
Environmental conditions
Temperature: Keep the ambient temperature relatively constant (usually recommended within the range of 15 ° C to 35 ° C, refer to the instructions for details), and avoid severe fluctuations. Temperature changes can affect sample properties and sensor accuracy. Keep away from heat sources such as ovens and heaters.
Humidity: Avoid excessive humidity (generally<80%) to prevent electronic components from getting damp or condensing.
Dust free: Keep the work area clean to prevent dust from entering the instrument or contaminating the sample/measuring unit.
No wind/no airflow: Avoid air flow caused by direct blowing of fans, air conditioners, or frequent movement of personnel, which greatly affects surface tension measurement.
development trend
Higher degree of automation: more advanced automatic sampler, automatic cleaning and drying module.
Multi method integration: One instrument integrates board method, ring method, optical method (hanging/lying drop), bubble pressure method, and even contact angle measurement.
Wider application range: Enhanced measurement capability under extreme conditions (high temperature, high pressure, ultra-low temperature).
Smarter software: AI assisted image recognition and contour fitting, more powerful data analysis and modeling capabilities, cloud connectivity and remote access.
Miniaturization and portability: meet the needs of rapid on-site testing (some models).
Complies with stricter regulations: enhances data integrity, electronic signatures, audit trail functionality
Application Scenarios
Transformer and Insulating Oil Quality Control: Used to monitor surface tension changes in transformer oil and insulating fluids, providing early warning of contamination, oxidation, or degradation, and supporting preventive maintenance decisions.
Lubricating Oil and Additive Testing: Applied in lubricant formulation and quality assurance to evaluate the performance of additives (e.g., anti-wear, friction modifiers) and their effect on surface properties.
Petroleum and Refining Industry: Employed in refineries to test crude oil, diesel, and other hydrocarbon products, ensuring compliance with specifications related to interfacial behavior and separation efficiency.
Surfactant and Emulsifier Development: Used in R&D laboratories to study surfactant performance, emulsion stability, and wetting behavior, supporting product development for cleaning agents, personal care, and agrochemicals.
Ink, Coating, and Adhesive Manufacturing: Applied to optimize surface tension of inks, paints, and adhesives, ensuring proper wetting, adhesion, and coating uniformity for consistent product quality.
Research and Quality Assurance in Multiple Industries: Widely adopted in research institutions and QC labs across chemical, pharmaceutical, food, and polymer industries for material characterization and purity assessment.
FAQS
Q:What samples can be tested with The Fully Automatic Surface Tension Tester?
A:The tester can be used for various liquid samples that require surface or interfacial tension measurement, including transformer oil, insulating oil, turbine oil, lubricating oil, hydraulic oil, surfactants, petroleum products, and other chemical liquids.
Q:What is the difference between surface tension and interfacial tension?
A:Surface tension refers to the tension at the interface between a liquid and a gas, such as liquid and air. Interfacial tension refers to the tension between two immiscible liquids, such as mineral oil and water.
Q:What should be checked if the test results are unstable?
A:If the measurement results are unstable, check whether the platinum ring and sample container are clean, whether the sample temperature is stable, and whether the sample has been contaminated. External vibration and improper testing procedures should also be avoided. Regular calibration can further help maintain measurement stability.
Q:Does temperature affect surface or interfacial tension measurements?
A:Yes. Surface tension and interfacial tension can change with temperature. For reliable and repeatable results, the sample and testing environment should be maintained within the specified temperature range. The applicable temperature range is 10–30°C, with 25°C as the typical testing temperature.
Q:Why Choose Our Company?
A:We are committed to providing reliable laboratory testing instruments and professional solutions for power, petroleum, chemical, and other industries. With a focus on product quality, measurement accuracy, and customer needs, we provide complete support from product selection and installation to operation training and after-sales service. Our experienced technical team also provides professional technical assistance, remote troubleshooting, spare parts, and software updates to help customers maintain stable and efficient testing operations.
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