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An overview of the current temperature sensor

( 1) Output end concentrated by large electrolytic and noise reduction

( 2) 1 n4004 capacitance uF, diode.

（ 3) Transformer according to the power consumption of the temperature sensor.

（ 4) The temperature sensor's working current. Direct detection ( No amplification) Power: big to 5 ma; Straight test amplified power consumption: big to + 20 ma; Magnetic compensating power consumption: 20 output current; Consumption of working current 20 2 times the output current. According to the working current consumption power consumption can be calculated.

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.

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.

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.