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Main-standard volume calibration device and main-standard volume calibration method based on positive and negative strokes of commutator

A technology of forward and reverse travel and calibration device, which is applied in testing/calibration devices, measuring devices, instruments, etc., can solve problems such as measurement result errors, and achieve the effect of offsetting system errors and improving measurement accuracy.

Active Publication Date: 2017-02-22
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the inherent asymmetry of the reversing device itself, as well as the influence of many factors such as pipeline installation and liquid flow state, it will inevitably bring errors to the measurement results.

Method used

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  • Main-standard volume calibration device and main-standard volume calibration method based on positive and negative strokes of commutator
  • Main-standard volume calibration device and main-standard volume calibration method based on positive and negative strokes of commutator

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Embodiment Construction

[0053] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] Such as figure 1 , The main standard device volume calibration device based on the forward and reverse travel of the commutator according to the present invention includes a water storage container 1, a water pump 2, a filter 3, a pressure stabilizing container 4, a hand valve 5, and a two-position four-way reversing electric valve 6 , Volume tube piston 7, Volume tube 8, Light barrier 9, Photoelectric switch A10, Photoelectric switch B11, Photoelectric switch C12, Forward and reverse switch 13, Two-position three-way reversing solenoid valve 14, Recovery container 15, Weighing container 16 , electronic balance 17, controller;

[0055] The water pump 2 is set in the water storage container 1, the water pump 2 is connected to the filter 3, the filter 3 is connected to the pressure stabilizing container 4, the pressure stabilizing conta...

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Abstract

The invention belongs to the technical field of liquid flow or volume measurement, and particularly relates to a main-standard volume calibration device and a main-standard volume calibration method based on positive and negative strokes of a commutator. A water pump is arranged in a water storage container and is connected with a filter. The filter is connected with a voltage-stabilized container, the voltage-stabilized container is connected with a hand valve, the hand valve is connected with a two-position four-way reversing electrically-operated valve, and the two-position four-way reversing electrically-operated valve is connected with a volume tube. A volume tube piston is positioned in the volume tube. A controller is connected with a photoelectric switch A, a photoelectric switch B and a photoelectric switch C. A light shielding plate is connected with a piston rod of the volume tube piston. The controller is connected with a positive-negative switch, and the positive-negative switch is connected with a two-position three-way reversing electromagnetic valve. The two-position four-way reversing electrically-operated valve is connected with the two-position three-way reversing electromagnetic valve. A weighing container is put on an electric scale and is arranged in a right access of the three-way reversing electromagnetic valve, and a recycling container is arranged in a left access of the three-way reversing electromagnetic valve. During reverse testing, positions of the weighing container and the recycling container are exchanged.

Description

technical field [0001] The invention belongs to the technical field of liquid flow or volume measurement, and in particular relates to a volume calibration device and calibration method of a master standard based on the positive and negative strokes of a commutator. Background technique [0002] The volumetric tube type liquid flow calibration device uses the volumetric tube as the main standard, and its flow measurement principle is: when the liquid flow pushes the piston in the volumetric tube to move, the timing piston will pass through the effective volume time Δt of the volumetric tube successively, according to the definition of volume flow Calculation of liquid volume flow rate q V : [0003] q V =ΔV / Δt [0004] In the formula: ΔV is the effective volume of the volumetric tube, which is the volume marked between the two shading sheets of the volumetric tube system. It must be accurately measured by certain measurement means in advance. The measurement accuracy dire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
Inventor 王慧龙孙凤举焦鑫鑫刘鑫钟山
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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