The liquid surface tension tester is developed and manufactured by Beijing Hake, and there are usually two testing methods: one is the shape image analysis method; The second method is the weighing method The latter is commonly referred to as a wetting balance or a permeation contact angle meter However, currently widely used, the direct and accurate measurement method is still the shape image analysis method The principle of the shape image analysis method is to drop liquid droplets onto the surface of a solid sample, obtain the shape image of the droplets through a microscope lens and camera, and then use digital image processing and some algorithms to calculate the contact angle of the droplets in the image

HARKE-SFT-D1Product parameters of surface tension meter

lSurface/Interface Tension Test Range: 0-400mN/m

lSurface/interface tension measurement accuracy: ± 0.1mN/m

lSurface/interface tension display accuracy: ± 0.01mN/m

lMeasurement range of liquid density: 0-1000g/cm³

lSensor range: 0-120g

lSample stage upgrade speed: 0-10mm/Sec

lSample stage upgrade distance: 0-80mm

lSample table lifting accuracy: ± 0.1mm

lSample pool size: Φ50mm

lMeasurement software: SFT-D

lTemperature range: 0-98 ℃

lInstrument size (mm): 360 * 360 * 620

lWeight: 25Kg

HARKE-SFT-D1Basic functions of surface tension meter

lHanging method

lHanging ring method

lLiquid density