【 Some commonly used temperature sensor performance comparison 】

For a long time, the temperature sensor is widely used, the temperature control is not only the production technique, some electronic products still need to measure their own temperature, such as computer to monitor the CPU temperature, the temperature of the motor controller to know power drive IC, etc. , under the common temperature sensor is described below. Now on the market can be roughly divided into traditional temperature sensor temperature sensor and digital temperature sensor, the two types of sensors have been widely used. The features and applications of two types of sensors have alone, now also can't say which good which is not good, now also can only say that each has his strong point. Most of the traditional temperature detecting for thermistor sensor, using thermistors, measuring range can accommodate 40 degrees Celsius to 90 degrees Celsius, but lower reliability of thermistor, temperature measurement accuracy is low, for 1 c signal is not applicable, have to specially the interface circuit of can converted into digital signals by the microprocessor for processing. Digital temperature sensor are different from traditional thermal resistor, using the integrated chip, using single bus technology, it can effectively reduce the interference of the outside world, improve the accuracy of measurement, at the same time, it can be directly measured temperature will be converted to a serial digital signals for computer processing, simple interface, data transmission and process simplification. Part of the function of the circuit integration, make the overall hardware design is more simple, can effectively reduce the cost, set up and welding circuit when faster, more convenient debugging is simple, it shortens the development cycle. And now the world a lot of pressure sensor is integrated, have their own temperature measurement function. Saves a devices in use, of course, this is for and tailored to measure pressure and temperature measurement, and accuracy is very high, like INTERSEMA company that MS5540 with this functionality, relatively very high performance-price ratio. If you don't need to measure pressure, there is no need to waste of resources. This is according to the need to take into consideration the procurement.