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Gas Specific Heat Capacity Ratio Measuring Method and System

A technology of specific heat capacity ratio and measurement method, applied in the field of measurement, can solve the problems of inability to correct the influence of temperature and humidity environment, difficult simultaneous measurement of pressure and volume, low experimental measurement accuracy, etc., so as to reduce instrument cost, improve compliance, and improve experimental The effect of precision

Inactive Publication Date: 2018-01-09
HOHAI UNIV
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This method has the following defects: 1. It is difficult to realize the simultaneous measurement of pressure and volume, and it is easy to produce large measurement errors when measuring instantaneous pressure
2. Unable to correct the influence of temperature and humidity environment in the experiment
3. Experimental measurement accuracy is low

Method used

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  • Gas Specific Heat Capacity Ratio Measuring Method and System
  • Gas Specific Heat Capacity Ratio Measuring Method and System
  • Gas Specific Heat Capacity Ratio Measuring Method and System

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Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0041] figure 1 Shown is a structural schematic diagram of an embodiment of a gas specific heat capacity ratio measurement system of the present invention. The gas specific heat capacity ratio measuring system comprises: a gas specific heat capacity ratio measuring device (100), a controller (900); the gas specific heat capacity ratio measuring device (100) includes a barometer (102), a flask (104), a flask stopper ( 105), differential pressure gauge (106), U-shaped tube (111), scale (112), water column (113), glass thin tube (114), air bag (115), support (116); wherein, U-shaped tube Be equal-diameter (R=1.598cm) cylindrical U-shaped tube, water column (113) is the non-transparent liquid that tap water and dyestuff mix, and air bag (115) is the hand-held inflatable ball that has deflation valve, and flask (104) is gas Glass flask (effective...

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Abstract

The invention discloses a gas specific heat capacity ratio measurement method and its system. The system includes a gas specific heat capacity ratio measurement device, a controller, and a temperature sensor whose output ends are respectively connected to the input ends of the controller measurement module. and a humidity sensor; its method steps: (1) before measuring the specific heat capacity ratio of the gas, obtain the gas volume value by measurement and write it into the data recording module of the controller: (2) the input terminal of the measurement module is connected with the atmospheric pressure sensor, temperature, humidity sensor, photoelectric gate, differential pressure sensor, and write the measurement data into the data measurement module of the controller: (3) the calculation module processes the data; (4) outputs the result. The invention can realize simultaneous measurement of pressure and volume, and the error of instantaneous pressure measurement is small, can correct the influence of temperature and humidity environment in the experiment, and has high experimental measurement accuracy.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a gas specific heat capacity ratio measurement method and a system thereof. technical background [0002] At present, the general experimental instrument for measuring gas specific heat capacity ratio indirectly measures gas specific heat capacity ratio by measuring the simple harmonic vibration period of steel balls. Generally, a precision glass tube is inserted above the flask, and a steel ball is placed in the precision glass tube. The diameter of the steel ball is about 0.01mm smaller than the inner diameter of the precision glass tube. It can move freely up and down in the precision glass tube. There is a hole on the side of the flask. A small hole, and insert a glass tube with a thin mouth, through which the gas to be measured can be injected into the flask. In order to compensate the attenuation of steel ball amplitude caused by gas damping, a small-pressu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N7/00
Inventor 张开骁马爱斌江静华胡立群陈敦军雷撼
Owner HOHAI UNIV
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