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Field device

A field device and amplifier technology, which is applied to instruments, through the detection of the dynamic effect of fluid flow, and measurement devices, can solve the problems of limited freedom in the design of the amplifier shielding room and the enlargement of the amplifier shielding room.

Pending Publication Date: 2022-05-03
YOKOGAWA ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the amplifier shielding room becomes larger, and the design freedom of the outside of the amplifier shielding room is limited.

Method used

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Embodiment Construction

[0035] Embodiments of the present invention will be described with reference to preferred embodiments. Those skilled in the art can use the teachings of the present invention to implement many alternative methods of this embodiment, and the present invention is not limited to the preferred embodiment described here.

[0036] One embodiment of the present invention is to provide a field device capable of miniaturizing an amplifier shielded room.

[0037] Hereinafter, a field device according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following, the outline of one embodiment of the present invention will be described first, and then the details of one embodiment of the present invention will be described.

[0038] 〔summary〕

[0039] The vortex flowmeter disclosed in Japanese Patent Laid-Open No. 2002-107192 is a measuring instrument for measuring flow velocity and flow rate by measuring the frequency of Karman v...

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Abstract

A field device (1) is provided with: a housing section (30) having an amplifier shield chamber (30A) into which an analog signal transmission section (40) for transmitting an analog signal output from a detector can be inserted; a signal conversion unit (50) that is disposed inside the amplifier shield chamber (30A) and converts an analog signal into a digital signal; and a connector (60) that is disposed inside the amplifier shield chamber (30A) and detachably connects the analog signal transmission unit (40) and the signal conversion unit (50).

Description

technical field [0001] The invention relates to a field device. [0002] This application claims priority based on Japanese Patent Application No. 2020-181674 filed on October 29, 2020, the contents of which are incorporated herein. Background technique [0003] A vortex flowmeter described in JP 2002-107192 A is known as one type of field device. This vortex flowmeter includes a container having a cylindrical side wall and a partition wall provided at the center of the side wall. The interior of the container is divided into a terminal box chamber and an amplifier chamber by side walls and a partition wall. A terminal box section having a signal terminal section and a power supply terminal section is provided in the terminal box chamber. In the amplifier room, there is an amplifier section that processes input signals and power input. [0004] However, in order not to be affected by noise such as power supply noise, an amplifier shield room is formed in the amplifier ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/32
CPCG01F1/32G01D21/00G01F1/3287G01F1/3209
Inventor 田口雅矢
Owner YOKOGAWA ELECTRIC CORP
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