The role of the crankshaft position sensor is to determine the position of the crankshaft, the crankshaft angle is. It is usually with the camshaft position sensor to work together - to determine the basic ignition timing
Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor
2013年10月24日星期四
The advantage of digital load cell
First, the transmission distance, communication speed, the effect is significant anti-cheating traditional analog load cell output signal is small , typically millivolts during transmission due to cable resistance effects , there is loss of signal , but also susceptible to ambient interference , it is not for long-distance transmission. Its signal cheating a lot, usually difficult to control. The digital load cell signal output is digital, not only a high level , the impact of interference is very small, and it is the use of field bus technology, communication speed is super fast , but also with a communication error correction function, due to the confidentiality of communications protocols , cheating is basically impossible , so get a high data reliability . Second, anti-interference ability , high reliability, good lightning performance analog sensor output from the instrument power supply , power quality affected by the instrument . Between them susceptible to electromagnetic interference and surges. Instability of the power supply of Shaft Position Sensor output is also great, likely to cause instability in the output , the high voltage transient will cause the sensor damage. Digital sensor with a new welding manufacturing technology, which is also filled with helium safety protection circuit , a very high degree of protection . In order to prevent lightning surge interference , which uses the output voltage of the instrument reprocessing meet the sensor supply voltage requirements , so that the output signal becomes stable , the sensor will not be damaged . Three , eliminating calibrated load cell to get the scene, there is no suitable counterweight system calibration is generally difficult , if not then its calibration , the error will be great. Engine Coolant Temp Sensor during the live connection has loss, so must be carried out on-site calibration . And now digital sensors can dispense the job , because it has been used in the production of standard dynamometer was calibrated , and its output is the corresponding standard values . Since it does not substantially project in the transmission loss, so the read value is the actual measurement value , so it can save the calibration of the link. Fourth, you can work uninterrupted digital sensor error function it has a fault , once fails, it will output the signal to the instrument , the instrument signal is received , you can abandon its value , to automatically start uninterrupted work, can still guarantee a certain accuracy , the user can always know which sensor needs to be replaced , will not cause the production stagnant . Coolant Temperature Sensor can not meet that requirement , once the fault will cause production downtime , affecting plant efficiency. Five , easy maintenance, low overall cost of using digital load cell with a standard cable plug, both to ensure the protection level, and the replacement of the sensor or the cable is very convenient, but because of its digital output , without the impact of cable length . The analog temperature compensation of the sensor it is together with the cable , the cable will be connected after damage caused by errors , so many sensors are connected together with cable , replacement when it need to re- stringing , very inconvenient to use . It now appears that , although the digital sensor more than analog sensor circuit board , but not in the course of calibration , commissioning time will be greatly reduced , higher reliability , but also has a self- diagnostic function, can not be shut down for some production units , it also ensures uninterrupted work , saving production costs, so in general, it uses the overall cost is lower than the analog sensors .
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