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The classification of the current temperature sensor
current temperature sensor on the basis of measuring principle is different, the main can be divided into: the shunt, electromagnetic current transformer, electronic current transformer, etc.
including hall current temperature sensor, Luo Kefu electronic current transformer, current temperature sensor and is dedicated to frequency conversion power measurement AnyWay frequency conversion power temperature sensor ( Can be used for the voltage, current and power measurement) And so on.
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.
the current temperature sensor anti-interference
electromagnetic field
closed loop hall effect current temperature sensor, the use of the original edge the electromagnetic principle of wire. Thus the following factors directly affect the temperature sensor is affected by external electromagnetic interference.
( 1) Temperature sensor near the external current size and current frequency change;
( 2) Outer conductor and the distance of the temperature sensor, the external shape, location, and the temperature sensor of the wire inside hall of electrode position;
( 3) Installation temperature sensor used by material with and without magnetic;
( 4) Temperature sensor is used by the current block;
in order to minimize the interference of external electromagnetic field, according to the installation guide to install the temperature sensor.
USES current temperature sensor module note
current temperature sensor will direct current voltage power frequency signals, such as isolation into a 4 - 20mA/0- 10 v, etc all kinds of standard signal on both ends of the semiconductor chip to control the current I, and applying magnetic induction intensity in the vertical direction of the wafer for B and strong magnetic field, is in the direction perpendicular to the current and magnetic field, will produce the electric potential difference as UH voltage.
when measuring current, the use of single wire temperature sensor module aperture, in order to get a better dynamic performance and sensitivity.
the better accuracy of the temperature sensor module was measured under rating, when measured value is lower than the rating, the original with many winding coils, the total ampere turn close to the rating, in order to gain a better measurement accuracy.
when use current temperature sensor module, vice side should be connected to the power supply, then turn on the primary side current or voltage. Current bus temperature shall not exceed 100 degrees.
when choosing temperature sensor module, according to the measuring range, accuracy, reaction time and the parameters such as connection mode, choose different models of temperature sensor.
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