Multi-parameter high-precision transmitter capable of resisting strong magnetic interference
A transmitter and multi-parameter technology, which is applied in the direction of instruments, measuring instrument components, magnetic field/electric field shielding, etc., can solve the problems of reduced sensitivity and accuracy, and achieve stability, improve assembly convenience, and ensure accuracy. Effect
Pending Publication Date: 2022-06-03
南京谷瑞自动化测控有限公司
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Problems solved by technology
There are many types of transmitters. The transmitters used on industrial control instruments mainly include temperature transmitters, pressure transmitters, flow transmitters, current transmitters, voltage transmitters, etc. The existing transmitters The device has no electromagnetic interference protection function, so it will be interfered by the external magnetic field during the signal transmission and model conversion process, resulting in a decrease in its sensitivity and accuracy
Method used
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Embodiment Construction
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] see Figure 1-4 , The present invention provides a technical solution: a multi-parameter high-precision transmitter against strong magnetic interference, comprising a transmitter body 1 and a base 2, the transmitter body 1 is provided with a display screen 3 and a signal output terminal 5 on the surface And the recessed hole 15, the transmitter body 1 is provided with a circuit board 8, a sensor 12 and an interference protectio...
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A multi-parameter high-precision transmitter resistant to strong magnetic interference disclosed by the present invention comprises a transmitter body and a base, the surface of the transmitter body is provided with a display screen, a signal output terminal and a concave hole, and the transmitter body is internally provided with a circuit board, a sensor and an interference protection net. An amplifier, an analog-to-digital converter and a transformer module are welded on the circuit board, the impedance circuit board can further shield an external magnetic field and ensure the detection accuracy, and the transmitter body can shield the external magnetic field in an electromagnetic interference environment through the arrangement of the interference protection net, so that the detection accuracy is improved. The interference protection net is used as a medium for fixing the circuit board, the circuit board is generally in a flat plate shape and is very inconvenient to fix when being installed in a hole, and the interference protection net is arranged to enable the circuit board to be installed in the interference protection net, so that the interference protection net is very convenient to fix. The circuit board is convenient to fix.
Description
technical field [0001] The invention relates to the field of automatic instrument detection, in particular to a multi-parameter high-precision transmitter against strong magnetic interference. Background technique [0002] A transmitter is a converter that converts the output signal of the sensor into a signal that can be recognized by the controller (or converts the non-electrical input of the sensor into an electrical signal and amplifies it for remote measurement and control). The sensor and the transmitter together form an automatically controlled monitoring signal source. Different physical quantities require different sensors and corresponding transmitters. There are many types of transmitters. The transmitters used in industrial control instruments mainly include temperature transmitters, pressure transmitters, flow transmitters, current transmitters, voltage transmitters, etc. The device has no electromagnetic interference protection function, so it will be interfe...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01D21/02G01D11/00G01D11/30H05K7/14H05K9/00
CPCG01D21/02G01D11/00G01D11/30H05K9/00H05K9/0007H05K7/1427
Inventor 刘君峰
Owner 南京谷瑞自动化测控有限公司