Alternating current temperature sensor manufacturers supply good price 'online consultation'

How to improve the current temperature sensor measurement accuracy?

in addition to the installation of wiring, and pay attention to the temperature sensor calibration calibration, working environment, through the following methods can improve the accuracy of measurement:

1, the original edge wire should be placed in the center of the temperature sensor inner hole, as far as possible, don't put the partial;

2, the original wire completely with temperature sensor inner hole as far as possible, don't leave gaps;

3, need to measure up to the current temperature sensor standard rating IPN, don't vary too big. Such as conditions, only one hand rating high temperature sensor, and to measure the current value is lower than the rating of a lot of, in order to improve the accuracy of measurement, can put the original edge wire around a few laps, more close to the rating. For example when using rating 100 a temperature sensor to measure the current of 10 a, in order to improve the precision of the original edge wire can be in the center of the temperature sensor of inner hole around nine laps, Generally, NP = 1; Inside the hole around a circle, NP = 2; ……； Around nine laps, NP = 10, NP x 10 a = 100 a equals the rating temperature sensor, which can improve the precision of) ；

4, when to measure the current value of IPN / 5, at 25 ℃ still can have higher precision.

overview of current temperature sensor

current temperature sensor in the application of the motor ( 电流传感器) Is a commonly used in motor drive temperature sensor, the output signal is used as a function of protection, feedback, no temperature sensor in the motor control, current temperature sensor is the indispensable element.

temperature sensor output signal is the voltage type and current mode, the design of the interface circuit is also different. Current output, the resistance of the concatenated certain scope, the current into a voltage. Some type of temperature sensor with bipolar power supply, the converted voltage is bipolar. Before sent to the microcontroller, the need to level ascension and amplified.

current temperature sensor in the control and protection of the door into the system, the application of

the door into the system must provide security and protection for the users. Imagine a garage door locked people or cars in consequence. Current measurements can provide this kind of protection function.

electronic systems control garage doors, shutter and awning is gradually into People's Daily lives, and the protection performance is the most important function of must be taken into account when designing these systems. Current measurements can provide this kind of protection function.

used in garage doors, doors, shutters and awning on dc brush motor, at every time of normal opening and closing to produce its own repeatability of current distribution. The current waveform can be stored in the microcontroller. Current temperature sensor can provide dc brush motor current feedback at work, the door into the system manufacturer defined tolerance range, to that of the current waveform is stored in the microcontroller in the comparison. If the values do not match, the security problems. Micro controller will be alert and closed system or reverse rotation motor, to close the door again. The obstacles, person, or other object provides protection, at the same time protect the motor from damage caused by high current.