Differential pressure type pulse pressure sensor calibration device
A technology for pulsating pressure and calibrating devices, which is applied in the direction of measuring devices, measuring fluid pressure, instruments, etc., can solve the problems of troublesome sensor calibration, small sensor size, large quantity, etc., to achieve accurate measurement, compact device structure, and not easy to damage Effect
Inactive Publication Date: 2015-10-14
CHINA ACAD OF AEROSPACE AERODYNAMICS
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Pulsating pressure sensors are widely used. The sensors used in the test are small in size and large in number. Sensor calibration is troublesome, especially for differential pressure pulsating pressure sensors. Their calibration needs to provide measurement pressure and reference pressure. Since the sensor itself reference pressure The steel pipe is very thin, and it is easy to cause damage during the installation test
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0041] See figure 1 , The present invention provides a differential pressure type pulsation pressure sensor calibration device, including: an inner cylinder structure hollow to form a reference pressure chamber, the inner cylinder structure is connected with a reference pressure tube; and an outer cylinder structure, the sleeve Set on the outside of the inner cylinder structure, the space between the inner cylinder structure and the inner cylinder structure constitutes a measuring pressure chamber, and the outer cylinder structure is connected with a measuring pressure tube for connecting the measuring pressure chamber with a measuring pressure source , The outer cylinder structure has a first through hole for the refer...
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
Login to View More Abstract
The invention discloses a differential pressure type pulse pressure sensor calibration device comprising an internal cylinder structure and an external cylinder structure. The internal part of the internal cylinder structure is hollow so that a reference pressure cavity is formed. The internal cylinder structure is connected with a reference pressure tube. The external cylinder structure sleeves the external side of the internal cylinder structure, and a measurement pressure cavity is formed by the space between the external cylinder structure and the internal cylinder structure. The external cylinder structure is connected with a measurement pressure tube which is used for communicating the measurement pressure cavity and a measurement pressure source. The external cylinder structure is provided with a first through hole which is used for passing of the reference pressure tube so that the reference pressure cavity and the reference pressure source are communicated. The internal cylinder structure is provided with multiple installing holes which are used for installing sensors in the internal cylinder structure, and the reference pressure ends of the sensors are enabled to be positioned in the reference pressure cavity and the pressure measurement ends are enabled to be positioned in the measurement pressure cavity. The external cylinder structure is also provided with a wiring hole used for outward extension of the external wires of the sensors. Static calibration of multiple sensors can be simultaneously met by the differential pressure type pulse pressure sensor calibration device so that calibration efficiency can be enhanced.
Description
Technical field [0001] The invention belongs to the technical field of sensor testing, and particularly relates to a sensor measuring device. More specifically, the invention relates to a static calibration device for a differential pressure pulsating pressure sensor. Background technique [0002] Pressure distribution measurement is the most basic content of the fluid mechanics experiment. It can provide the aerodynamic pressure load at the location of each measuring point. Furthermore, by performing area-weighted integration of the pressure at each measuring point, the overall impact of the research object can be obtained. Aerodynamic force and torque. In experimental research, some experimental items require dynamic aerodynamic time history. If the above pressure integration method is used, the pressure time history of each measuring point must be synchronized, that is, the pressure of each point at the same moment must be recorded. signal. Although the dynamic balance can a...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00
Inventor 贾毅田笑尹世博
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS