Static pressure characteristic test of differential pressure transmitter and effective area verification method of piston pressure gauge
A technology of differential pressure transmitter and piston pressure gauge, applied in the direction of measuring fluid pressure, instruments, measuring devices, etc., can solve the problems of complex measurement process of static pressure characteristics, long time consumption and low efficiency.
Active Publication Date: 2022-05-20
中国测试技术研究院流量研究所
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The main purpose of this application is to provide a method for testing the static pressure characteristics of a differential pressure transmitter and a method for verifying the effective area of a piston pressure gauge, so as to solve the problem of relatively complicated static pressure characteristic measurement process, low efficiency and long time consumption in the related art. question
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
[0059] In order to enable those skilled in the art to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than Full examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0060] It should be noted that the terms "first" and "second" in the specification and claims of the present application are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the embodiments of the application described herein.
[0061] Moreover, some of the above terms ma...
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 application discloses a method for testing the static pressure characteristics of a differential pressure transmitter and a piston pressure gauge. The differential pressure transmitter is connected to a pressure source and a pressure regulating device; a pressure measuring instrument is connected in parallel to the differential pressure transmitter. The high pressure end and the low pressure end; control the pressure source to make the pressure rise to the measuring point, record the indication value P1 of the differential pressure transmitter and the pressure measuring instrument; disconnect the high pressure of the differential pressure transmitter The connection between the end and the pressure measuring instrument; control the pressure regulating device to reduce or increase the pressure at the low pressure end of the differential pressure transmitter, and at the same time obtain the change in the indication value of the pressure measuring instrument, when the change reaches At the predetermined upstroke differential pressure point or downstroke differential pressure point, record the indication value Ph of the pressure measuring instrument and the indication value ΔP of the differential pressure transmitter 1 ; Get the actual differential pressure value ΔP by the difference between Ph and Pl 2 . The method solves the problems in the related art that the measurement process of the static pressure characteristic of the differential pressure transmitter is relatively complicated, the efficiency is low, and the time consumption is long.
Description
technical field [0001] The present application relates to the field of pressure measurement, in particular to a static pressure characteristic test of a differential pressure transmitter and a method for verifying the effective area of a piston pressure gauge. Background technique [0002] Piston pressure gauge is a standard pressure measuring instrument with high accuracy, high reproducibility and high reliability based on Pascal's law and hydrostatic balance principle. It is mainly used in measurement rooms, laboratories and production or scientific experiments. Links are used as pressure references or standards. Two verification methods are provided in the piston pressure gauge verification regulations JJG59-2007 and JJG1086-2013: direct balance method and initial balance method. These two methods are also relatively recognized piston pressure measurement transmission methods in the field of pressure measurement. The initial balance method is more widely used because o...
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 Patents(China)
IPC IPC(8): G01L27/00
CPCG01L27/00
Inventor 甘蓉罗凡尹保来王彭
Owner 中国测试技术研究院流量研究所
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap