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Liquid level calibrating apparatus and method

A verification device and liquid level gauge technology, which is applied in the field of measurement, can solve the problems of inaccurate liquid level gauge verification results and difficult control of liquid level changes, etc.

Active Publication Date: 2016-02-17
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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Problems solved by technology

[0004] The problem solved by the present invention is that, because the liquid level change is not easy to control, the verification result of the existing liquid level gauge is not accurate enough; in order to solve the above problem, the present invention provides a liquid level gauge verification device and method

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  • Liquid level calibrating apparatus and method

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Embodiment Construction

[0017] Hereinafter, the present invention will be further described in conjunction with the drawings and embodiments.

[0018] Such as figure 1 As shown, the level gauge verification device provided by the present invention includes: a verification barrel, a level gauge lifting mechanism 8, and an optical measurement system; the height of the liquid level in the verification barrel remains unchanged; the level gauge 6 passes through a clamp 7 Installed on the level gauge lifting mechanism 8, the level gauge lifting mechanism 8 drives the level gauge 6 through the clamp 7 to move vertically on the liquid level in the verification barrel; the optical measuring system measures the movement distance of the clamp 7.

[0019] Continue to refer figure 1 , The optical measurement system has achieved good applications in the measurement field. The optical measurement system used in the embodiment of the present invention includes: a first reflector 7 installed on the clamp 7 and synchroni...

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Abstract

The invention discloses a liquid level calibrating apparatus and method. The liquid level calibrating apparatus comprises a calibrating barrel, a liquid level elevating mechanism and an optical measuring system, wherein a height of a liquid level of the calibrating barrel is remained the same; a liquid level meter is installed on a liquid level meter elevating mechanism via a clamp; the liquid level meter elevating mechanism drives the liquid level meter to move up and down in a way of being perpendicular to the liquid level of the calibrating barrel via the clamp; and the a motion distance of the clamp can be measured by the optical measuring system. By the use of the liquid level calibrating apparatus and method, liquid level meter calibration precision can be improved and calibration can be easily achieved.

Description

Technical field [0001] The invention relates to the field of measurement, in particular to a liquid level gauge verification device and method. Background technique [0002] At present, the verification of domestic liquid level gauges is completed in accordance with the verification regulations of JJG971-2002 "Level Gauge" using water tank verification devices. The level gauge with a range of less than 2m is installed on the verification water tank, and it is realized by adjusting the water level of the verification water tank to each verification point, and reading the water level indication value of each verification point in the up and down stroke. For liquid level gauges with a measuring range greater than 2m, a full-scale verification method is also required to simulate the liquid level. This form of analog conversion will increase the uncertainty of the measurement result. However, there are many types of level gauges, complex simulation methods, and many measuring device...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
Inventor 杨洋朱跃李东升胡佳成王梅宝刘月瑶
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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