CN102937500A - Automatic zero setting pressure transmitter for high-temperature melt - Google Patents
Automatic zero setting pressure transmitter for high-temperature melt Download PDFInfo
- Publication number
- CN102937500A CN102937500A CN2011102334056A CN201110233405A CN102937500A CN 102937500 A CN102937500 A CN 102937500A CN 2011102334056 A CN2011102334056 A CN 2011102334056A CN 201110233405 A CN201110233405 A CN 201110233405A CN 102937500 A CN102937500 A CN 102937500A
- Authority
- CN
- China
- Prior art keywords
- automatic zero
- pressure transmitter
- zero setting
- pressure
- temperature melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an automatic zero setting pressure transmitter for a high-temperature melt. The pressure transmitter comprises a pressure sensing component, a threaded rod, a capillary tube, an elastomer, a strain gauge and an automatic zero setting amplifying circuit, wherein the pressure sensing component is arranged under the threaded rod, the capillary tube is arranged at the upper end of and connected with the pressure sensing component, the elastomer is arranged at the upper end of and connected with the capillary tube, the strain gauge is bonded to the surface of the elastomer, and the automatic zero setting amplifying circuit is connected with the strain gauge and used for amplifying signals of the strain gauge. According to the pressure transmitter, automatic verification and amendment can be performed on zero and full scale of output signals of a product, and labor, time and expensive verification equipment can be saved.
Description
Technical field
The present invention relates to a kind of pressure unit, particularly a kind of automatic zero setting pressure transmitter for high temperature melt.
Background technology
For the manufacture of enterprises such as chemical fibre, rubber, plastics, need in process of production its process of producing product is monitored in the Industrial Engineering, make in the parameter area of expectation with the control product.This just needs pressure unit to be connected to production equipment the production run variable is comprised that pressure, temperature, flow etc. carry out data acquisition, and these data are sent back to central control room, carries out data analysis and processes.And zero drift and drift are all technical barriers to be solved of present all the sensors.Conventional pressure unit is to carry out zero-bit to on-the-spot manual setting zeroing knob again to demarcate, and regulates extremely inconveniently, waste time and energy, and the knob that returns to zero very easily damages.This intelligent automatic zero setting pressure transmitter adopts intelligent MCU (microcontroller) software programming control, only need press that a key just can be finished zero point and full scale is adjusted automatically, and can carry out long-range zero point and full scale is adjusted automatically by long-range line.At present industry pressure unit commonly used must carry out effect to product by effect equipment after product is installed, and need to expend a large amount of manpowers, time and need expensive effect equipment during effect.
Summary of the invention
Technical matters to be solved by this invention provides a kind of automatic zero setting pressure transmitter for high temperature melt, it can carry out output signal zero point and full scale is carried out automatic effect and correction to product, saves and expends a large amount of manpowers, time and need expensive effect equipment.
For solveing the technical problem, the invention provides a kind of automatic zero setting pressure transmitter for high temperature melt, it is characterized in that, automatic zero setting pressure transmitter for high temperature melt comprises sensing element, threaded rod, kapillary, elastic body, strainometer, the automatic zero set (AZS) amplifying circuit, sensing element is positioned at the below of threaded rod, kapillary is positioned at the upper end of sensing element and is connected with sensing element, elastic body is positioned at upper end capillaceous and is connected with kapillary, strainometer sticks on the elastomeric surface, and the automatic zero set (AZS) amplifying circuit is connected with strainometer and the signal of strainometer is amplified.
Preferably, described temperature melt automatic zero setting pressure transmitter also comprises the pressure-sensitive head, and the pressure-sensitive head is positioned at elastomeric below.
Preferably, described sensing element is pressure-sensitive flexible member or pressure-sensitive diaphragm.
Positive progressive effect of the present invention is: the present invention can carry out output signal zero point and full scale is carried out automatic effect and correction to product, saves and expends a large amount of manpowers, time and need expensive effect equipment, has greatly improved user's production efficiency.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Embodiment
The below lifts a preferred embodiment, and comes by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
As shown in Figure 1, automatic zero setting pressure transmitter for high temperature melt of the present invention comprises sensing element 2, threaded rod 3, kapillary 4, pressure-sensitive 5, elastic body 6, strainometer 7, automatic zero set (AZS) amplifying circuit 8, sensing element 2 is positioned at front end and is positioned at the below of threaded rod 3, sensing element 2 also contacts with measured matter, kapillary 4 is positioned at the upper end of sensing element 2 and is connected with sensing element 2, pressure-sensitive 5 is positioned at the below of elastic body 6, and elastic body 6 is positioned at the upper end of kapillary 4 and is connected with kapillary 4.Strainometer 7 sticks on the surface of elastic body 6, and automatic zero set (AZS) amplifying circuit 8 is connected with strainometer 7 and the signal of strainometer 7 is amplified.
Sensing element is pressure-sensitive flexible member or pressure-sensitive diaphragm, and this sensing element is made of elastomeric alloy material, and pressure-sensitive diaphragm adopts through stress relief and hardness promotes and the stainless steel coating diaphragm of process vacuum heat and vacuum titanium carbide coating film treatment.Automatic zero setting pressure transmitter also is provided with the first pressure-sensitive head, and the pressure-sensitive flexible member is to use argon arc welding on the first pressure-sensitive head.The kapillary upper end is provided with the second pressure-sensitive head that is connected with kapillary, and elastic body is welded on the second pressure-sensitive head with plasma welding machine.The elements such as the second pressure-sensitive head of kapillary upper end, elastic body, strainometer all are placed in the housing of a sealing.Automatic zero setting pressure transmitter for high temperature melt of the present invention has automatic zero set (AZS) (Auto-Zero) function, the present invention will form on the elastic body that strainometer sticks on kapillary is connected of full-bridge, during measurement, front end diaphragm pressurized is delivered on the elastic body that the other end pastes strainometer by medium, strain resistor produces the phenomenon of change in resistance with mechanical deformation, be commonly called as and be resistance strain effect, and amplify by intelligent automatic zero set (AZS) amplifying circuit, output 4-20mA industrial standard current signal commonly used is transferred to the commercial unit such as PLC (programmable logic controller) again and carries out control display or carry out monitoring.Intelligence automatic zero set (AZS) amplifying circuit adopts up-to-date Low Power High Performance MCU (microcontroller), through the software optimization programming, have output sensitivity height, good linearity, volume little, low in energy consumption, be easy to the advantages such as integrated.The present invention can be under the prerequisite that reaches degree of precision and stability, make transmitter have stronger practicality, can be directly and the host computers such as computer and PLC (programmable logic controller) carry out remote configuration control, the automatic zero set (AZS) amplifying circuit possesses automatic adjusting and the effect function of output signal zero point and full scale, only need to just can carry out output signal zero point and full scale is carried out automatic effect and correction to product by a button (perhaps two wires of short circuit) during use, saving expends a large amount of manpowers, time and the effect equipment that needs costliness have improved user's production efficiency greatly.
The principle of work of automatic zero setting pressure transmitter for high temperature melt of the present invention is as follows: when the pressure action of tested mobile high temperature process stream in sensing element 2, transmit and by filling the kapillary 4 of full Transfer Medium incoercible in fact fluids such as (normally) oils in 1: 1 mode, and be delivered on the elastic body 6 that posts strainometer 7 by the pressure-sensitive head that is connected with kapillary 4, the strainometer 7 that is attached on the elastic body 6 forms Wheatstone bridge by strain resistor.Based on Hooke's law, in elastic limit, the deformation of object converts pressure to linear electric signal by the strainometer 7 on the pressure-sensitive elastic body 6 with the principle that the external force that causes deformation is directly proportional, under pressure namely, elastic body 6 produces micro-deformation, after the strainometer 7 of its upper end is experienced its deformation, the electric signal that the effect that has a resistance and output are directly proportional with the applied pressure size, amplify integration at 8 pairs of these electric signal of automatic zero set (AZS) amplifying circuit that are electrically connected via strainometer 7, directly outputting standard 4-20mA current signal carries out the teletransmission process in computer or PLC (programmable logic controller) system.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make various changes or modifications to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.
Claims (3)
1. automatic zero setting pressure transmitter for high temperature melt, it is characterized in that, automatic zero setting pressure transmitter for high temperature melt comprises sensing element, threaded rod, kapillary, elastic body, strainometer, automatic zero set (AZS) amplifying circuit, sensing element is positioned at the below of threaded rod, kapillary is positioned at the upper end of sensing element and is connected with sensing element, elastic body is positioned at upper end capillaceous and is connected with kapillary, strainometer sticks on the elastomeric surface, and the automatic zero set (AZS) amplifying circuit is connected with strainometer and the signal of strainometer is amplified.
2. automatic zero setting pressure transmitter for high temperature melt as claimed in claim 1 is characterized in that, described temperature melt automatic zero setting pressure transmitter also comprises the pressure-sensitive head, and the pressure-sensitive head is positioned at elastomeric below.
3. automatic zero setting pressure transmitter for high temperature melt as claimed in claim 1 is characterized in that, described sensing element is pressure-sensitive flexible member or pressure-sensitive diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102334056A CN102937500A (en) | 2011-08-15 | 2011-08-15 | Automatic zero setting pressure transmitter for high-temperature melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102334056A CN102937500A (en) | 2011-08-15 | 2011-08-15 | Automatic zero setting pressure transmitter for high-temperature melt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937500A true CN102937500A (en) | 2013-02-20 |
Family
ID=47696411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102334056A Pending CN102937500A (en) | 2011-08-15 | 2011-08-15 | Automatic zero setting pressure transmitter for high-temperature melt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102937500A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969869A (en) * | 2017-03-24 | 2017-07-21 | 齐亚斯(上海)物联网科技有限公司 | Environment-friendly high-temperature melt force sensor |
| US10352801B2 (en) | 2016-05-10 | 2019-07-16 | Fike Corporation | Intelligent temperature and pressure gauge assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200972419Y (en) * | 2006-08-28 | 2007-11-07 | 上海皓鹰测控技术有限公司 | Melt pressure sensor |
| CN201289417Y (en) * | 2008-08-13 | 2009-08-12 | 上海皓鹰测控技术有限公司 | High-temperature pressure transmitter |
| CN201488849U (en) * | 2009-04-24 | 2010-05-26 | 上海皓鹰测控技术有限公司 | Combined high-temperature fusant pressure transmitter |
| CN201555683U (en) * | 2009-12-01 | 2010-08-18 | 上海皓鹰测控技术有限公司 | Automatic zero setting pressure transmitter |
| CN202195911U (en) * | 2011-08-15 | 2012-04-18 | 上海朝辉压力仪器有限公司 | Automatic zero setting pressure transmitter for high temperature melt |
-
2011
- 2011-08-15 CN CN2011102334056A patent/CN102937500A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200972419Y (en) * | 2006-08-28 | 2007-11-07 | 上海皓鹰测控技术有限公司 | Melt pressure sensor |
| CN201289417Y (en) * | 2008-08-13 | 2009-08-12 | 上海皓鹰测控技术有限公司 | High-temperature pressure transmitter |
| CN201488849U (en) * | 2009-04-24 | 2010-05-26 | 上海皓鹰测控技术有限公司 | Combined high-temperature fusant pressure transmitter |
| CN201555683U (en) * | 2009-12-01 | 2010-08-18 | 上海皓鹰测控技术有限公司 | Automatic zero setting pressure transmitter |
| CN202195911U (en) * | 2011-08-15 | 2012-04-18 | 上海朝辉压力仪器有限公司 | Automatic zero setting pressure transmitter for high temperature melt |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10352801B2 (en) | 2016-05-10 | 2019-07-16 | Fike Corporation | Intelligent temperature and pressure gauge assembly |
| CN106969869A (en) * | 2017-03-24 | 2017-07-21 | 齐亚斯(上海)物联网科技有限公司 | Environment-friendly high-temperature melt force sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207395918U (en) | Temperature and pressure compound sensor | |
| CN102323004A (en) | A kind of switching value differential pressure pick-up | |
| CN201145584Y (en) | Pressure transmitter | |
| CN201488849U (en) | Combined high-temperature fusant pressure transmitter | |
| CN102519653A (en) | Spring tube and foil gauge combined type digital pressure gauge | |
| CN102937500A (en) | Automatic zero setting pressure transmitter for high-temperature melt | |
| CN202195911U (en) | Automatic zero setting pressure transmitter for high temperature melt | |
| CN202126325U (en) | Switching value differential pressure sensor | |
| CN202693187U (en) | Pressure transmitter applicable to domestic water purifier | |
| CN201555683U (en) | Automatic zero setting pressure transmitter | |
| CN201289415Y (en) | High-temperature fused mass pressure gauge | |
| CN103868641A (en) | Micro differential pressure sensor | |
| CN208026421U (en) | Circular iris resistance-strain type pressure, differential pressure pickup | |
| CN100451636C (en) | Humidity transmitter in low cost | |
| CN201322668Y (en) | Pressure transmitter | |
| CN201289417Y (en) | High-temperature pressure transmitter | |
| CN201503293U (en) | Resistance strain sensor for target flowmeter and pontoon liquid level meter | |
| CN210321843U (en) | Sensor for fluid flow meter | |
| CN209513130U (en) | A kind of air gauge containing pressure switch | |
| CN103076134A (en) | On-line detection system for safety valve | |
| CN216593924U (en) | Ultrahigh pressure diaphragm pressure transmitter | |
| CN207649819U (en) | A kind of tubular type pressure sensor | |
| CN204255540U (en) | Pointer band pressure gauge with digital display | |
| CN107014455B (en) | A kind of quality formula flow internet of things sensors | |
| CN206832304U (en) | A kind of quality formula flow internet of things sensors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |