Advantages of intelligent centrifuges compared to traditional centrifuges

Compared with the functions and characteristics of the previous centrifuges, the intelligent centrifuges now produced have more functions and are more intelligent. In recent years, the rapid development of centrifuge technology has made centrifuge technology more perfect and high-quality functions. The following Xiangli Scientific Instruments will introduce you to the new intelligent high-speed centrifuges compared to the traditional centrifuges.

·Temperature refrigeration

When the rotor rotates at high speed, the air friction generates heat, the rotor temperature rises, and the temperature of the sample in the test tube rises. Because biological samples are sensitive to temperature. It is generally required that the temperature be maintained at 4 ° C in the centrifugation experiment. Without the intelligent technology of computer control, it is impossible to achieve an accuracy of ±1 °C. Therefore, the centrifugal chamber is cooled by a refrigerator to achieve the purpose of cooling the rotor and cooling the temperature of the sample. However, it is extremely difficult to measure the actual temperature of the rotating rotor. At home and abroad, a temperature sensor is disposed near the rotor at the bottom of the centrifugal chamber to measure the rotor temperature indirectly. Here T sample = T cavity + T compensation. The T compensation is in turn related to the type of rotor, the speed and the running time.

·Brushless motor direct drive

The centrifuge is rotated by the motor with the rotor at high speed. In the past, the motor was a DC motor with a carbon brush. When the centrifuge was running, the carbon brush was worn, causing sparks, noise and even vibration, and it had a long life. At that time, it was necessary to replace the carbon brush and then operate again. What is more serious is that carbon brush wear brings carbon dust pollution, which not only pollutes the centrifuge, but also pollutes the surrounding environment. This pollution is not suitable for the health industry.

·Display digital technology

The typical expression of analog technology is to twist the knob to select operating parameters (such as speed, temperature and time), and display the data with the pointer of the dial. The disadvantage is that the reading value of the selected parameter and the data is interfered by the operator and the person of the reading person, and the control precision is poor. And every time you do this, the repeatability is poor. Although some centrifuges display digital display (such as the value of the knob and digital display), although the reading is improved, the value principle is still analog technology; the typical display form of digital display is user-friendly, keyboard operation, digital display The whole computer control of programmable operation, the core of which is intelligent control, is realized by computer. All parameters required for the operation of the centrifuge (such as speed, temperature, time, acceleration and deceleration rate files, etc.), keyboard operation input, and digital display, so the choice of operating parameters and readings error is minimal. And because it is a programmable operation, a set of operating parameters can be numbered and accessible.

Have the above features. The high-speed centrifuge is more intelligent, the centrifugal effect is better, and the function of the centrifuge will be more perfect in the future. The centrifuge manufacturer will develop more new functions. Centrifuge technology will also be more complete.