Astronautic programmable thermocouple temperature transmitter
A technology of temperature transmitter and thermocouple, which is applied to thermometers, thermometers, and electrical devices that use electrical/magnetic components that are directly sensitive to heat, which can solve the problems of cumbersome debugging process, low degree of intelligence, and inconsistent hardware. , to achieve the effect of suitable for mass production, high degree of intelligence, and simple debugging process
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[0036] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0037] Such as figure 1Shown is a schematic diagram of the circuit operation of the thermocouple temperature transmitter of the present invention. The thermocouple temperature transmitter product of the present invention is powered by a single power supply with a wide voltage of 6-15V, the input is a thermocouple signal, and the output voltage range is 0-5V. It can be seen from the figure that the thermocouple temperature transmitter circuit part is composed of a power supply circuit, a programmable amplifier circuit, a programmable cold junction compensation circuit, an operational amplifier circuit, and an output protection circuit. The power supply circuit is powered by programmable amplifier circuit, programmable cold junction compensation circuit, and operational amplifier circuit to realize functions such as power supply filtering, reverse...
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