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Capillary pipe air resistance measurement device and measurement method

A measuring device and capillary technology, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve problems such as low precision and difficulty in measuring air resistance of woolen pipelines, and achieve guaranteed accuracy and measurement speed Fast, high-precision results

Inactive Publication Date: 2019-11-19
CHINA JILIANG UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a capillary pipeline air resistance measurement device and measurement method, which solves the problems of difficult and low precision measurement of the capillary pipeline air resistance

Method used

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  • Capillary pipe air resistance measurement device and measurement method
  • Capillary pipe air resistance measurement device and measurement method
  • Capillary pipe air resistance measurement device and measurement method

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with accompanying drawing.

[0028] Such as figure 1 As shown, the device of the present invention is divided into four modules, including a two-stage series closed-loop stabilized pressure gas source 1 , a measurement module 2 , a hardware control system 4 and a computer 3 . The measurement module 2 and the computer 3 are placed on the optical platform 5, and the two-stage series closed-loop stabilized pressure gas source 1 is connected to the measurement pipeline 2 through the gas pipe.

[0029] Such as figure 2 As shown, the measurement pipeline includes an air filter valve 6, an oil mist separator 7, an electrical proportional valve 8, an initial capillary pipeline 9, an inlet temperature sensor 10, an inlet connector 11, an inlet pressure sensor 12, and a measured capillary pipeline 13 , Single ear stepless clamp 14, measured capillary pipeline 15, outlet connector 16, outlet pressure sensor 17...

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Abstract

The invention discloses a capillary pipe air resistance measurement device and a measurement method. The device includes a two-stage series closed-loop voltage regulated air source, a measurement module, a hardware control system, and a computer. High-precision and stable air pressure is provided by the two-stage series closed-loop voltage regulated air source; the measurement module measures thetemperature and the air pressure of the input and output ends of the capillary pipe and the flow through the capillary pipe, and an independently-designed connector can reduce influences of pipe connection and sensor installation on air flow in the pipe to the minimum, and the measurement result precision is improved; and closed-loop control of the two-stage series closed-loop voltage regulated air source, pipe pressure adjustment and sensor data transmission can be realized by the hardware control system; and an air resistance value is calculated according to a formula R=lambdarhol / A by a computer program, after one measurement is completed, the data are saved, a characteristic curve of air resistance under different input air pressures is drawn, and the air resistance characteristics canbe analyzed at the same time.

Description

technical field [0001] The invention relates to the technical field of analysis and measurement control, in particular to a capillary pipeline air resistance measuring device and a measuring method. Background technique [0002] In the field of ultra-precision machining and ultra-precision testing technology, whether it is precision machining or measuring instruments, very strict requirements are put forward for the mechanical part. Practice has proved that gas static pressure lubrication technology has significant advantages such as fast speed, high precision, small friction loss, high and low temperature resistance and atomic radiation resistance, no pollution or less pollution, long life and simple structure. However, the gas static pressure lubrication technology has major technical problems such as low load capacity, low stiffness and poor stability. The gas static pressure restrictor is the core component of the gas static pressure lubrication technology, so the corre...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N7/00G01M13/00
CPCG01M13/00G01N7/00
Inventor 李东升曹鹏飞禹静
Owner CHINA JILIANG UNIV
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