High-precision constant-temperature device
A thermostat, high-precision technology, applied in instruments, thermometers, scientific instruments, etc., can solve the problems of reduced temperature control accuracy, inability to achieve high-precision temperature control or alarm, etc., to achieve high-precision temperature control or alarm, high-precision The effect of temperature control
Inactive Publication Date: 2017-12-29
昆山市克洛弗智能科技有限公司
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Problems solved by technology
[0002] The temperature drift of temperature collection in the existing temperature control facilities is relatively large, so the accuracy of temperature control is greatly reduced, especially for laboratories, hospitals and other places that require high constant temperature, it is impossible to achieve high-precision temperature control or alarm
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Embodiment Construction
[0008] A high-precision thermostat implementing the present invention includes a DC power supply (VCC) and a power switch (K) connected in sequence, the negative terminal of the DC power supply (VCC) is electrically connected to one end of the switch (K), and the other end of the switch (K) is electrically connected to the super The negative terminal of the low-drift high-precision operational three-stage amplifier (OPO7), one terminal of the potentiometer (R2), one terminal of the resistor (R6), one terminal of the resistor (R7), and the positive terminal of the DC power supply (VCC) are electrically connected to one terminal of the integrated temperature sensor (TW), The positive terminal of the ultra-low drift high-precision operational three-stage amplifier (OPO7), the output terminal of the ultra-low drift high-precision operational three-stage amplifier (OPO7) is electrically connected to the control output interface (CHO) terminal of the single-chip microcomputer system, ...
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The invention relates to a high-precision constant-temperature device. A negative terminal of a direct-current power supply VCC is connected with one end of a switch K electrically; the other end of the switch K is connected with a negative terminal of an ultra-low-drift high-precision operation three-stage amplifier OPO7 electrically; a positive terminal of the direct-current power supply VCC is connected with one end of an integrated temperature sensor TW and a positive terminal of the ultra-low-drift high-precision operation three-stage amplifier OPO7 electrically; an output terminal of the three-stage amplifier OPO7 is connected with a single-chip microcomputer system control output interface CHO terminal electrically; the other end of the integrated temperature sensor TW is connected with an input terminal of the ultra-low-drift high-precision operation three-stage amplifier OPO7 and one end of a resistor R1 electrically; and the other end of the resistor R1 is connected with the other end of a potentiometer R2 electrically. According to the invention, the high-precision integrated temperature sensor and the ultra-low-drift high-precision operation three-stage amplifier are used for carrying out real-time temperature collection and controlling to realize high-precision temperature control. Therefore, when the high-precision constant-temperature device is applied to places, like a laboratory or a hospital, with the constant temperature requirement, high-precision temperature controlling or alarming is realized.
Description
technical field [0001] The present invention relates to a temperature controller, in particular to a high-precision thermostat that uses a high-precision integrated temperature sensor and an ultra-low drift high-precision three-stage amplifier for real-time temperature acquisition and control to achieve high-precision temperature control . Background technique [0002] In the existing temperature control facilities, the temperature drift of temperature collection is relatively large, so the accuracy of temperature control is greatly reduced, especially for laboratories, hospitals and other places that require high constant temperature, high-precision temperature control or alarm cannot be realized. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a high-precision integrated temperature sensor and a three-stage amplifier with ultra-low drift and high-precision operation for real-time tempera...
Claims
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IPC IPC(8): G01K1/02G01K1/022
CPCG01K1/024G01K1/028
Inventor 赵怀湘
Owner 昆山市克洛弗智能科技有限公司