Water level gauge, water pressure sensor device, and water level measurement system

A technology of water pressure sensor and water level measurement, which is applied in the directions of displaying liquid level indicators, measuring devices, and measuring fluid pressure through pressure measurement, which can solve problems such as high cost and corrosive gas intrusion, and achieve cost reduction, corrosion prevention, Effects of Improving Measurement Accuracy

Inactive Publication Date: 2018-08-10
YOKOGAWA ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is necessary to take countermeasures inside the conversion unit, that is, to install a filter using a dry material such as silica gel to prevent moisture from entering, and to implement a moisture-proof coating on the substrate in order to prevent corrosion of the circuit substrate, which is costly.
The inside of the conversion part is open to the atmosphere, so corrosive gas enters the inside of the conversion part

Method used

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  • Water level gauge, water pressure sensor device, and water level measurement system
  • Water level gauge, water pressure sensor device, and water level measurement system
  • Water level gauge, water pressure sensor device, and water level measurement system

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Embodiment Construction

[0038] Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. All combinations of features described in the embodiments are not essential to the solution of the invention. In the drawings, the same reference numerals are assigned to the same or similar parts, and overlapping descriptions may be omitted. The shapes, sizes, and the like of elements in the drawings are sometimes exaggerated for clearer description.

[0039]Throughout the specification, when a structural element possessed by a certain part is referred to as "comprising", "having", or "having", as long as there is no specific contrary statement, it does not mean that other structural elements are excluded, but that other structural elements can also be included. structural elements.

[0040] Next, a water level gauge according to one embodiment of the present invention will be described with refer...

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Abstract

A water level gauge according to one aspect of the present invention includes a first communicator configured to receive a first wireless signal indicating an absolute value of water pressure from a water pressure sensor device capable of measuring the absolute value of the water pressure, and a water level calculator configured to calculate a water level on the basis of the absolute value of thewater pressure indicated by the first wireless signal received by the first communicator and an atmospheric pressure measured by a barometer.

Description

technical field [0001] The invention relates to a water level gauge, a water pressure sensor device and a water level measuring system. [0002] This application claims priority based on Japanese Patent Application No. 2017-18967 filed in Japan on February 3, 2017, the contents of which are incorporated herein. Background technique [0003] Currently, there is an integrated pressure-type water level gauge, which has: a water pressure detection unit installed in water to detect the water pressure; and a conversion unit based on the water pressure detected by the water pressure detection unit, Calculate the water level (refer to Japanese Patent No. 3463728 and Japanese Patent No. 5696181). [0004] The central portion of the water pressure detection unit is partitioned by a diaphragm. The water pressure detection unit is configured to apply water pressure to the lower surface of the diaphragm, and to apply atmospheric pressure to the upper surface through the atmospheric pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/14
CPCG01F23/14G01L19/0046G01L19/086G01F23/164G01F23/80G01F23/804G08B21/182
Inventor 吉田勇作新井崇砂川浩胜野田隆一郎
Owner YOKOGAWA ELECTRIC CORP
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