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Sensor signal transmitting device

A sensor signal and signal transmission technology, which is applied in the direction of instruments, simulators, computer control, etc., can solve the problems of large zero point offset of the measurement signal output, inconvenient installation and application of the client, and failure to output, etc., to achieve small size and low cost. low, to avoid unstable effects

Pending Publication Date: 2019-12-10
霍丁格必凯(苏州)电子测量技术有限公司
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  • Description
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  • Application Information

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Problems solved by technology

Current technical shortcomings: 1. It is impossible to output high-precision (better than 0.1%) signals at a power supply voltage less than 5V; 2. The accuracy in high-temperature and low-temperature environments is far worse than that in normal temperature environments; 3. The zero point of the measurement signal output Large offset; 4. The products with the above advantages are large in size, which is inconvenient for client installation and application

Method used

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  • Sensor signal transmitting device

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0018] like figure 1 As shown, a sensor signal transmission device includes: a sensor access port 1, an I / O interface 4, a signal transmission module 2 connected between the sensor access port 1 and the I / O interface 4, the The signal transmission module 2 includes a sensor access circuit 21 connected to the sensor access port 1, and also includes an MCU control circuit 22 connected to the sensor access circuit 21. The MCU control circuit 22 includes a built-in digital filter circuit 224, a high-precision digital signal An output circuit 222, a data update signal circuit 223, and a high-precision excitation voltage unit 221 that provides power for the sensor, wherein the input end of the sensor access port 1 is connected to the sensor 21, and the output end is...

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Abstract

The invention discloses a sensor signal transmitting device. The device comprises a sensor access port, an I / O interface, a signal transmitting module which is connected between the sensor access portand the I / O interface and comprises a sensor access circuit connected with a sensor access port, and an MCU control circuit which is connected with the sensor access circuit; the MCU control circuitcomprises a built-in digital filter circuit, a high-precision digital signal output circuit, a data updating signal circuit and a high-precision excitation voltage unit for providing power for the sensor, wherein the input end of the sensor access port is connected with the sensor, the output end of the sensor access port is connected with the input end of the MCU control circuit, the digital filter circuit is used for removing noise interference of the input end of the sensor access port, and the output end of the MCU control circuit is connected to the I / O interface. According to the scheme,the advantages of multiple functions and small size of the PCB can be realized, so that the PCB can be used on more occasions. Within the working temperature range, the nonlinear error is smaller than 0.07%; non-full scale calibration is achieved.

Description

technical field [0001] The invention relates to the field of weighing equipment, in particular to a sensor signal transmission device. Background technique [0002] At present, there are mainly two kinds of output signals of the signal transmitter of the sensor: digital signal and analog signal. With the development of industrial technology, the output signal accuracy and calibration method of the sensor transmitter, the size and cost of the signal transmitter have more and more requirements. Stringent requirements. Current technical shortcomings: 1. It is impossible to output high-precision (better than 0.1%) signals at a power supply voltage less than 5V; 2. The accuracy in high-temperature and low-temperature environments is far worse than that in normal temperature environments; 3. The zero point of the measurement signal output Large offset; 4. The size of the product with the above advantages is large, which is not convenient for client installation and application. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 贾荣海彭雯
Owner 霍丁格必凯(苏州)电子测量技术有限公司
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