Open loop current temperature sensor price trust recommendation

Current temperature sensor - — Electromagnetic compatibility

electromagnetic compatibility EMC, ( 电- - - - - - 磁兼容性) Is the study of electrical and electronic equipment that can perform their respective functions in common electromagnetic environment state of coexistence, the requirements of the various devices in the same electromagnetic environment can work normally and noninterference, achieve 'compatibility' state a discipline. The deterioration of space electromagnetic environment is more and more easy to make electronic components caused by incompatible between false action in the system, so the electrical and electronic equipment electromagnetic compatibility testing is very necessary. Due to the urgent needs of the actual production, scientific research and marketing, has passed the electromagnetic compatibility test a consensus has emerged among current and voltage of temperature sensor, and has become a compulsory standards.

current temperature sensor using note

1. In order to get a better dynamic characteristics and sensitivity, must pay attention to the original coil and deputy while coil coupling, coupling well, available single wire and wire completely fill the hole temperature sensor module aperture;

2. Used as the dc current flows through the temperature sensor of the original side coil, and the secondary circuit without | stabilizer or vice side open circuit, power supply is connected, the magnetic circuit is magnetized, remanent magnetization, the influence and measuring accuracy, So use to connect the power supply and measure the end M) , when this happens, first to demagnetization. The method is a circuit without power, and by the same level in the primary side coil alternating current and decreases the size of its value;

when using the current temperature sensor needs to pay attention to?

in most cases, the current temperature sensor has a strong ability to resist the external magnetic field interference, general module 5 - in the distance 10 cm between a two times the magnetic field generated by the current Ip of current interference can be ignored, but when have stronger magnetic field interference, to take appropriate measures to deal with.

usually methods are: (1) adjust the direction of the module, the external magnetic field of the influence of the small module; (2) on the module with cover a magnetic field the metal shield resistance; Choose a with hall element in two or three hall element module; (4) measuring accuracy is under the rating, when the measured current is far lower than the rating for accuracy, the original edge can use number of turns, namely: IpNp = rated ampere turn. In addition, the original edge feeder temperature should not exceed 80 ℃.

current temperature sensor in the application of motor

temperature sensors and motors, drives, controller a motion control system or drive system. Current temperature sensor is commonly used in motor drive and control of the temperature sensor, platinum spark plugs, the output signal is used as a function of protection, feedback, no temperature sensor in the motor control, the current temperature sensor is the indispensable element, the current signal is used to calculate the magnetic field physical quantities such as position and flux linkage and torque. In different kinds of motors even the same type but different in the number of motor drive, the location and type of temperature sensor are also different voltage temperature sensor, temperature sensor, the hall current ( voltage sensor) 。