Unlock instant, AI-driven research and patent intelligence for your innovation.

Pressure measuring device and pressure measuring method

A technology for measuring devices and pressure, applied in measuring devices, measuring fluid pressure, instruments, etc., can solve the problems of low measurement accuracy, difficult installation, and poor reliability of small-sized pressure sensors

Active Publication Date: 2021-09-17
HARBIN INST OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of the existing pressure measuring devices, which are affected by the size and are difficult to install in a limited space, and the small size pressure sensor has low measurement accuracy and poor reliability. , and further provide a pressure measuring device and a pressure measuring method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pressure measuring device and pressure measuring method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0025] Specific implementation mode one: combine figure 1 Describe this embodiment, a pressure measurement device of this embodiment, the pressure measurement device includes a first elastic membrane 1, an elastic membrane protective casing 2, an elastic membrane observation casing 3, a second elastic membrane 4, a three-way pipe 5, Liquid a6, sensor installation adapter 7, pressure sensor 8, sealing screw 9, pressure fine-tuning tube 10, valve 11, pressure guiding tube 12 and liquid b13, the first elastic film 1 and the second elastic film 4 are respectively sealed and installed in the lead On the nozzles at both ends of the pressure tube 12, the elastic membrane protective shell 2 is set outside the first elastic membrane 1, and there is a gap between the elastic membrane protective shell 2 and the first elastic membrane 1, and the elastic membrane observation shell 3 is sleeved on the second elastic membrane. Outside the elastic membrane 4, and there is a gap between the el...

specific Embodiment approach 2

[0027] Specific implementation mode two: combination figure 1 Describe this embodiment, the tee pipe 5 of this embodiment, the elastic film observation housing 3, the second elastic film 4, the pressure fine-tuning tube 10, the sealing screw 9, the sensor installation fitting 7 and the pressure sensor 8 form a first In the enclosed space, the first enclosed space is filled with liquid a6. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Specific implementation mode three: combination figure 1 To describe this embodiment, a second sealed space is formed between the first elastic membrane 1 , the pressure guiding tube 12 and the second elastic membrane 4 in this embodiment, and the second sealed space is filled with the liquid b13. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a pressure measuring device and a pressure measuring method, which relate to the technical field of pressure measurement. The problems that an existing pressure measuring device is difficult to install in a limited space due to the influence of the size, and a small-size pressure sensor is low in measuring precision and poor in reliability are solved. A first elastic film and a second elastic film are installed on pipe openings in the two ends of a pressure guiding pipe in a sealed mode respectively, the first elastic film is sleeved with an elastic film protection shell, the second elastic film is sleeved with an elastic film observation shell, and a first pipe opening of a three-way pipe communicates with the elastic film observation shell; a second pipe opening of the three-way pipe is communicated with a pressure fine adjustment pipe, the other end of the pressure fine adjustment pipe is in screwed connection with a sealing screw, a third pipe opening of the three-way pressure guiding pipe is connected with a sensor installation adapter, and a pressure sensor is installed at the other end of the sensor installation adapter. The size limitation of the pressure sensor can be reduced, and pressure sensors of different models can be conveniently and flexibly replaced.

Description

technical field [0001] The invention relates to the technical field of pressure measurement, in particular to a pressure measurement device and a pressure measurement method. Background technique [0002] Existing pressure measuring devices mainly measure the pressure at the target position by directly installing a pressure sensor at the measuring point. When the space of the measuring point is relatively limited, it is difficult to install the pressure sensor. Moreover, the pressure sensor contains sensitive elements inside, the smaller the size, the lower the measurement accuracy, poor reliability, and easy damage. The method of directly passing through a simple pressure induction tube is only reliable for the pressure measurement of single-phase incompressible fluids. When applied to the pressure measurement of gas-liquid multi-phase fluids, if air bubbles enter the pressure induction tube, the measurement results will be seriously affected. Therefore, the existing press...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01L19/00G01L19/06
CPCG01L19/0023G01L19/003G01L19/0672G01L19/06
Inventor 曹伟王文俊王聪王桂林
Owner HARBIN INST OF TECH