Centrifuge speed tests and the internal temperature testingTime：2013-10-24 来源：湖南凯达科学仪器有限公司 Hits量：1598Speed of the centrifuge test, the difficulty lies in the original structure does not change the centrifuge, and take the test under normal operating conditions the signal light turned on in order to achieve speed test, that is, using the frequency measurement method for testing the speed of the centrifuge. Mechanical parts We design and manufacture of a light source and optical receiver, converter, and fixed in the centrifuge cover the inside of the light source and optical receiver, switching device control signals, test signals (signals) through the centrifuges under the hood rubber ring leads, and design a display device, the measured speed signal will be displayed outside the machine. The test device consists of two parts: some optical transmission and signal reception, signal processing and display section. Centrifuge temperature testing device Thermometer using sensor test, and by six and a half meter display. Resistance thermometer has a simple structure, high accuracy, ease of use, widely used in industry and research-related work. RTD temperature measurement principle is based on the conductor or semiconductor material exists between resistance and temperature of a certain function, that is due to temperature changes, along with the conductor or semiconductor resistance change, and then display instrument shows the measured object temperature indication. Platinum resistance thermometer has a good stability, high sensitivity, reproducibility is better, etc., and platinum resistance resistivity large diameter can be made very small, so the choice of platinum resistance thermometers as temperature measurement devices composed of temperature measurement devices. |