High frequency hall current temperature sensor price recommendation technology

How to selection - Current temperature sensor

A, choose current temperature sensors need to pay attention to the hole size can ensure wire can be through the temperature sensor;

B, choose current temperature sensor when the need to pay attention to the application environment for high temperature, low temperature, high humidity, earthquake and other special environment;

C, and pay attention to whether the spatial structure of the need when choosing current temperature sensor;

today and share how selection - Current temperature sensor, hope will be helpful to you! If you want to know more products information you can call the company telephone consultation! Serve you wholeheartedly!

current temperature sensor using load resistance choose

load resistance refers to the resistance on the temperature sensor output end, output current signal is often limit the larger value of load resistance, the output voltage signal when the limit load resistance smaller values, when the temperature sensor output signal to current signal, usually needs to be converted to voltage signal at the sampling, then need to be in the output of the temperature sensor and measuring the resistance matching between OV, selection of current temperature sensor resistance by the size of the temperature sensor power supply voltage and the size of the measured signal have limitations, not randomly selected.

under the same power supply voltage, measure the resistance value will affect the temperature sensor can measure the size of the original edge signal range, the smaller the resistance, the measured signal, the greater the measuring range is larger, the greater the resistance, the smaller the measured signal, large measuring range is smaller, however, it is important to note that some resistance temperature sensor measurement can not be infinite, otherwise it will damage the temperature sensor.

are usually in the specification, the manufacturer will indicate the scope of measuring the resistance number, including the smaller and larger value, the resistance value as long as within the limits prescribed in the specification, the temperature sensor can work normally, meet the specifications of the parameters of the commitment.

principle applied in the motor current temperature sensor

( 1) In the demanding good dynamic characteristic of device use, is to use single copper aluminum busbar and aperture, with large generation or more circle number, all can affect the dynamic characteristics.

（ 2) Temperature sensor, voltage must be according to the instructions in the original edge string into a current limiting resistor R1, in order to make the rated current of the primary side, be in usually, 2 times of overvoltage duration shall not be more than 1 minute.

（ 3) Primary side current bus temperature shall not exceed 85 ℃, it is the nature of ABS engineering plastics, users have special requirements, optional high temperature plastic shell.

（ 4) Magnetic saturation point and temperature sensor circuit saturation point, make its have a thorough knowledge of the current temperature sensor load capacity, but there is a time limit, overload capacity test overload capacity, more than 2 times of the overload current shall not exceed 1 minute.

（ 5) Current voltage better precision of the temperature sensor is under the condition of the original edge rating, so when the temperature of the measured current is higher than the current sensors, current temperature sensor and temperature sensor voltage rating, should choose appropriate temperature sensor, when the measured voltage is higher than the voltage rating of temperature sensor, should readjust current limiting resistor, when measured under current is lower than the rating of 1/2, in order to get a better precision, can use more number of laps around the way.

（ 6) When used in the large current dc system, due to some reason work power fault, open circuit or produce larger residual magnetism is core, the current temperature sensor is noteworthy, remanence affects precision of demagnetization method is to work without power supply, through an ac in the original edge and gradually reduce its value.