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Current temperature sensor using the matters needing attention

( 1) The better precision of current voltage temperature sensor is under the condition of the original edge rating, so when the measured current is higher than the current rating of temperature sensor, should choose the corresponding big temperature sensor; When the measured voltage is higher than the voltage rating, temperature sensor should readjust current limiting resistor. When the measured current is lower than the rating of 1/2 below, in order to get a better precision, can use more than the number of circle.

（ 2) Insulation withstand voltage of 3 kv temperature sensor can work for a long time in communication system and 1 1 kv and below. Dc system, 5 kv and below 6 kv temperature sensors can work for a long time in communication system, and 2 kv and below 2. Dc system 5 kv and below, be careful not to use overpressure.

the development of the current temperature sensor advantage

and the trend of the development of current temperature sensor has the following features:

1, the high sensitivity. Detected signal strength is more and more weak, this will require a magnetic temperature sensor sensitivity are improved greatly. Applications include Angle of the current temperature sensors, temperature sensors, gear temperature measurement sensor, the space environment.

2, miniaturization, integration, intelligence. If you want to do the above requirements, which requires the integration of the chip level and module level integration, product integration.

3, low power consumption. Many areas for low power consumption of the temperature sensor itself, to extend the service life of the temperature sensor. Used in the implanted in the body of magnetic biological chip, compass and so on.

current temperature sensor - — Technology introduction

current temperature sensor using technology is important, because different temperature sensor may have different characteristics in various applications. Most of the temperature sensor can work, because the current-carrying wire creates a magnetic field. When directly measure the current in the circuit, will use the current sense resistor.

induction - Induction temperature sensor using a coil, the current-carrying conductor through the coil. This leads to the power flowing in the coil, is proportional to the current. This is due to the flow of electric current of magnetic fields. Induction temperature sensor is used for alternating current. The temperature sensor has a line around the core and signal conditioner. When the current through the conductor core conductor magnetic field will enlarge it. Due to alternating current constant electric potential from negative to positive, Usually for 50 to 60 Hz) Expand and contract, so will produce magnetic field, so the current is induced in the winding. Voltage and secondary current is converted to be adjusted for the output process. 4 - signal, for example 20 ma or contact closure.

magnetic resistance - Magnetic resistance effect is some material to change its resistance value as a function of the applied in its magnetic field characteristics. If it is not applied to magnetic flux, the current will directly through the plate. If the imposed magnetic flux and magnetic flux density is proportional to the lorentz force will make current path deflection. As the current path deflection, current flows through the plate distance is longer, resulting in increased resistance.

how 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, choice when need to pay attention to the space structure whether meet the current temperature sensor.

current temperature sensor is also called magnetic temperature sensors, can be in household appliances, smart grid, electric vehicles, wind power, etc. , are used in our life a lot of magnetic temperature sensors, such as computer hard drives, compass, household appliances and so on.