SDT-SPSDT-SP (formerly XZD-SP) Rotating Drop Ultra Low Interface Tension Meter

SDT-SP (formerly XZD-SP)The rotary droplet boundary (surface) tensiometer has been sold in many units in China, becoming a must-have and main model for measuring surface and interfacial tension in chemical flooding for tertiary oil recovery; And widely used in photosensitive materials; Paint; Oil crops; Detergent; Emulsion; The field of interface science such as pesticides.

In order to better meet the requirements of users, Beijing Hako（HARKE）Summarizing years of production practice experience in the field of interface science, continuously improving and perfecting the performance of the rotating droplet boundary (surface) tensiometer, and developing, designing, and manufacturing new models. The new model has made significant progress in stability, ease of operation, noise, and automation.

SDT-SP (formerly XZD-SP)The rotating droplet boundary (surface) tension meter adopts a digital imaging acquisition system,The video optical system is controlled by a computer to move left and rightTracking dropletsImage acquisition, and can take photos and store droplets at regular intervals according to user experimental requirementsimageAnd measuring and calculating the interfacial tension value, drawing the curve of time and interfacial tension, and the curve of width and time greatly improve the measurement accuracy, eliminate human reading errors, and greatly reduce the workload of researchers.

The software adopts an open design, with minimal virus damage, a beautiful and bright interface, simple operation, clear display of operation information, and horizontal and vertical point and line measurement methods. During the testing process, the small window movie image displays each captured photo, with dynamic switching between large and small windows. This allows for the measurement of random image information or saved image measurements during the experiment, displaying the time coordinate curve, width and time curve.

Specification

• Surface and interface tension measurement range1×10^-7～100mN/m；
• speed range1000～10000r/minControl accuracy0.1％； High speed synchronous motor transmission improves the precision of speed control and overcomes the trouble of frequent belt replacement for the speed increasing motor;
• Reading range0～6mmReading accuracy0.001mmThe digital video optical system is controlled by a computer to move left and right and track the captured footage at any timedropletImage;
• Dual temperature control technology, built-in heating (instrument self heating) or external water bath temperature control (additional charge), temperature control range0～110℃, temperature display accuracy ±0.1℃；
• Central processing unit, applicableWindows7Operating system;
• The central processing unit can be connected to desktop or laptop computers;
• Measure the fully digital circuit of the observation window, and the observation window is greenLEDDigital display;
• Directly setting the working temperature and speed by the computer, processing the images captured by the video optical system, calculating the interfacial tension, and drawing the interfacial tension curve;
• The integrated strip beam light source for static audio flashing has a much longer lifespan than ordinary strobe lights, and can flicker or stay on constantly;
• Inner diameter of high-purity quartz glass sample tube:2mm，6mm(Optional), the sample tube has been redesigned to solve the problem of easily generating bubbles during sample loading;
• Randomly equipped with stainless steel calibration tube
• Video Optical System0.5-4.52x continuous optical zoom, 2x video software zoom; Video capture speed25Frame/second, video transmission speed150Megahertz per second;
• RS-232Serial port (hardware),VIDEO USBInterface (video capture);
• 220 V／50 Hz±10％ .3A