Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ultra-high pressure intelligent pressure transmitter

An ultra-high pressure, transmitter technology, applied in the measurement of fluid pressure, measurement device, fluid pressure measurement by changing ohmic resistance, etc., can solve the problems of short service life, low test accuracy, low output signal, etc. Various properties, the effect of improving tear resistance

Active Publication Date: 2011-03-16
SHENZHEN MAXONIC AUTOMATION CONTROL CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it has the following disadvantages. First, the output signal is low, generally only 0.5 ~ 1mV / V, and the signal-to-noise ratio is also extremely low; The zero point drifts seriously; third, the service life is short, and it is prone to breakage under thousands of high-voltage impacts, causing the transmitter to fail to work; fourth, due to the structural reasons of the hollow cylindrical pressure sensitive element, its test is accurate under high pressure degree less than 0.2%

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
  • Ultra-high pressure intelligent pressure transmitter
  • Ultra-high pressure intelligent pressure transmitter
  • Ultra-high pressure intelligent pressure transmitter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as figure 1 , image 3 As shown, processing in the design of the flat diaphragm pressure sensitive element 1 is the key to the implementation of the present invention. The processing of the elastic flat diaphragm 9 needs to ensure the flatness of the elastic flat diaphragm at the bottom of the pressure tube hole 8 and control the elasticity. The thickness of the flat diaphragm T, the value of T is determined by the size of the pressure to be measured, the higher the range, the larger the T, the value of the invention is 1.50mm≤T≤3.00mm, and the thickness error is controlled within 0.01mm; The parallelism of the control plane diaphragm, the allowable error is within the range of 0.005mm; it is necessary to ensure that there is a transition arc surface with a radius of R at the junction of the pressure pipe hole 8 and the bottom plane. The size of R is determined by the measured pressure Determined by the size, the value of the transition arc surface of the present i...

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

PropertyMeasurementUnit
radiusaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an ultrahigh voltage intelligent pressure transmitter, which consists of a flat film type pressure sensitive element, a thermistance, a bridge type resistance strain gauge, an outer pipe, an HART protocol intelligent board, a sealing terminal and a cable, wherein the pressure sensitive part of the flat film type pressure sensitive element is an elastic flat film which is arranged on the bottom plane of a hollow cylindrical pressure leading hole. The measuring range of the ultrahigh voltage intelligent pressure transmitter can reach 1,000 MPa, and 1,400 MPa to the highest. Under ultrahigh voltage (1,000MPa) pressure, the intelligent pressure transmitter has strong repeated impact resistance and overvoltage impact resistance. The thermistance used for measuring the temperature of a medium is arranged on a pressure sensitive core, and can quickly and accurately sense and measure the temperature of the medium. The HART protocol intelligent board is adopted to carryout digitalized processing on data and output a standard signal. The invention provides a high performance and high reliability ultrahigh voltage intelligent pressure transmitter for occasions needing measuring the ultrahigh pressure.

Description

Technical field: [0001] The invention relates to a transmitter for measuring the pressure of a fluid medium, and is particularly suitable for ultrahigh pressure intelligent pressure transmitters in ultrahigh pressure measurement and control equipment with a pressure of up to 1000 MPa. Background technique: [0002] At present, in the field of ultra-high pressure measuring instruments, for pressure sensitive components, a hollow cylindrical pressure sensitive component method (such as figure 2 Shown). This kind of element is to set the pressure sensitive part on the outer wall of the hollow cylindrical pressure hole. Its working principle is: when the pressure of the measured medium is used on the inner wall of a hollow cylindrical pressure sensitive element, the hollow cylinder will undergo radial expansion and deformation due to the force. This situation causes the resistance value of the resistance strain gauge attached to the outer wall to change to generate an output signal,...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01L9/04G01L19/04
Inventor 谢大刚
Owner SHENZHEN MAXONIC AUTOMATION CONTROL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com