CN201600218U - Post-type pressure difference transmitter - Google Patents
Post-type pressure difference transmitter Download PDFInfo
- Publication number
- CN201600218U CN201600218U CN2009202994266U CN200920299426U CN201600218U CN 201600218 U CN201600218 U CN 201600218U CN 2009202994266 U CN2009202994266 U CN 2009202994266U CN 200920299426 U CN200920299426 U CN 200920299426U CN 201600218 U CN201600218 U CN 201600218U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure difference
- ceramic
- conducting seat
- post
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model belongs to the technical field of transmitters, and relates to a post-type pressure difference transmitter, which comprises a casing, a pressure conducting seat, a pressure inlet, an end cover, a pressure difference sensor, a connector and an amplification plate. The transmitter is characterized in that the casing is respectively connected with the pressure conducting seat in threaded manner; a high-pressure inlet and a low-pressure inlet are arranged on the left side and the right side of the pressure conducting seat through threaded connection holes; the pressure difference sensor is a ceramic pressure difference sensor; temperature compensation is arranged inside the pressure difference sensor; the ceramic pressure difference sensor is installed on the upper portion of the pressure conducting seat; and a high-pressure end opening and a low-pressure end opening of the ceramic pressure difference sensor are respectively communicated with the high-pressure threaded connection holes and low-pressure threaded holes on the left side and the right side of the pressure conducting seat. The post-type pressure difference transmitter is mainly used for rapidly and accurately detecting gas and liquid pressure difference in industry production and transferring the pressure difference into standard voltage signals to be outputted. The post-type pressure difference transmitter has the advantages of capability of accurately detecting under at a temperature ranging from 0 DEC G to 70 DEC G, ingenious volume, attractive appearance, light weight, corrosion prevention, reliable performance, long service life and convenient installation and use.
Description
Technical field:
The utility model belongs to the pressure difference transmitter technical field, and relating to a kind of being used in the commercial production will be converted to the pillar pressure difference transmitter of proportional, high-precision linear voltage output after the pressure difference signal collection.
Technical background:
Industries such as present domestic pharmacy, medical treatment, food, chemical industry, light industry require more and more higher to automatic controlling level, the gas in the production run, fluid pressure or pressure differential are all needed to detect and control.Traditional pressure difference transmitter ubiquity complex structure, bodily form heaviness, defectives such as accuracy of detection is low, fault is many, installation and maintenance difficulty.
The utility model content:
The purpose of this utility model provides a kind of pillar pressure difference transmitter that gas, fluid pressure differential in the commercial production is carried out fast, accurately detected and be converted to the output of 1-5V (DC) normal voltage signal.
Pillar pressure difference transmitter provided by the utility model adopts following technical scheme: comprise housing, the impulse seat, pressure entrance, end cap, differential pressure pickup, connector, amplify plate, be characterized in that described housing is threaded with impulse seat and end cap respectively, high, the low-pressure inlet adopts threaded connection hole to be arranged on the left and right sides of impulse seat, described differential pressure pickup is provided with the ceramic differential pressure pickup of temperature compensation in being, the pottery differential pressure pickup is installed on the top of impulse seat, its height, the low-pressure port is high with left and right sides impulse seat respectively, the low pressure threaded connection hole communicates.
Described housing is cylindrical enclosed construction.
Described connector is installed on the end cap, and zero potentiometer and power supply indication diode also is installed on the end cap.
Pillar pressure difference transmitter principle of work provided by the utility model is as described below: when two detected pressure signals insert set height on the impulse seat respectively, behind the low pressure threaded connection hole, pressure differential causes the ceramic diaphragm in the ceramic pressure sensor to produce small deformation, thick-film resistor is printed on the surface of ceramic diaphragm, connect into a resistance bridge (closing bridge), because the piezoresistive effect of voltage dependent resistor (VDR), make electric bridge produce a highly linear that is directly proportional with pressure differential, the voltage signal that also is directly proportional with driving voltage, this signal is exported by connector by amplifying the plate amplification and being converted to standard 1-5V d. c. voltage signal.Owing to be provided with the ceramic differential pressure pickup of temperature compensation in differential pressure pickup adopts, can compensate correction automatically to the deviation of signal that 0～70 degree variation of ambient temperature causes, guaranteed its measuring accuracy.The zero potentiometer of installing on the end cap will be exported electric signal and set to zero when input pressure reduction is zero, the power supply indication diode of installing on the end cap can be done the power supply indication easily.
The housing of pillar pressure difference transmitter provided by the utility model adopts cylindrical enclosed construction protective good, maintenance is little, housing is threaded with impulse seat and end cap, select ceramic differential pressure pickup for use with temperature self-compensation function, volume exquisiteness, accuracy of detection height, adopt hickey to be connected with connector, easy to install quick.
Pillar pressure difference transmitter provided by the utility model is mainly used in the output of normal voltage signal is carried out fast, accurately detected and be converted to gas, hydraulic pressure in the commercial production, be characterized under 0～70 ℃ of temperature, all accurately detecting, the volume exquisiteness, good looking appearance, in light weight, corrosion-resistant, dependable performance, long service life, easy to install.
Description of drawings:
Fig. 1 provides the structural representation of an embodiment of pillar pressure difference transmitter for the utility model.
Among the figure: 1, impulse seat, 1.1, the high pressure threaded connection hole, 1.2, the low-pressure threaded connection hole, 2, housing, 3, ceramic differential pressure pickup, 3.1, ceramic differential pressure pickup high pressure port, 3.2, ceramic differential pressure pickup low-pressure port, 4, zero potentiometer, 5, end cap, 6, connector, 7, power supply shows diode, 8, amplify plate.
Embodiment:
Enforcement below in conjunction with the description of drawings this patent.Fig. 1 provides the structural representation of an embodiment of pillar pressure difference transmitter for this patent.
As seen from the figure: the pillar pressure difference transmitter is made up of impulse seat 1, housing 2, ceramic pressure sensor 3, zero potentiometer 4, end cap 5, connector 6, power supply indication diode 7, amplification plate 8.Housing adopts cylindrical enclosed construction, housing 2 is threaded with impulse seat 1 and end cap 5, the high and low pressure threaded connection hole lays respectively at the both sides of impulse seat 1, ceramic pressure sensor 3 is installed on the top of impulse seat 1, and its pressure port 3.1,3.2 communicates with high and low pressure threaded connection hole 1.1,1.2 respectively.Amplify plate 8 and place in the housing 2, zero potentiometer 4, connector 6, power supply indication diode 7 all are installed on the end cap 5.
Behind set high and low pressure threaded connection hole on the detected pressure difference signal access impulse seat 1, cause the diaphragm in the ceramic pressure sensor 3 to produce small deformation, cause the voltage dependent resistor (VDR) change in resistance that is formed on the diaphragm, making electric bridge produce one is directly proportional with pressure differential and the voltage signal of highly linear, this signal is by amplifying plate 8 amplifications and being converted to standard 1-5V d. c. voltage signal, by connector 6 outputs.In adopting, differential pressure pickup 3 is provided with the ceramic differential pressure pickup of temperature compensation, can compensate correction automatically to the deviation of signal that 0～70 degree variation of ambient temperature causes, can measure the pressure differential signal of 0-0.5Mpa, its measuring accuracy is 0.5%, housing adopts cylindrical enclosed construction protective good, and maintenance is little, simultaneously the volume exquisiteness, (physical dimension Φ 39.4 * 100mm, general assembly (TW) is 170g only) in light weight; Housing is threaded with impulse seat and end cap respectively, and is easy for installation, and impulse seat, end cap and housing adopt aluminum alloy materials to process, and be attractive in appearance, corrosion-resistant.The zero potentiometer of installing on the end cap will be exported electric signal and set to zero when input pressure reduction is zero, the power supply indication diode of installing on the end cap can be done the power supply indication easily.
Claims (3)
1. pillar pressure difference transmitter, comprise housing, impulse seat, pressure entrance, end cap, differential pressure pickup, connector, amplification plate, it is characterized in that described housing is threaded with impulse seat and end cap, high and low pressure inlet adopts threaded connection hole to be arranged on the left and right sides of impulse seat, described differential pressure pickup is provided with the ceramic differential pressure pickup of temperature compensation in being, the pottery differential pressure pickup is installed on the top of impulse seat, and its pressure port communicates with left and right sides impulse seat high and low pressure threaded connection hole respectively.
2. pillar pressure difference transmitter according to claim 1 is characterized in that described housing is cylindrical enclosed construction.
3. pillar pressure difference transmitter according to claim 1 and 2 is characterized in that described connector is installed on the end cap, and zero potentiometer and power supply indication diode also is installed on the end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202994266U CN201600218U (en) | 2009-12-18 | 2009-12-18 | Post-type pressure difference transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202994266U CN201600218U (en) | 2009-12-18 | 2009-12-18 | Post-type pressure difference transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600218U true CN201600218U (en) | 2010-10-06 |
Family
ID=42811280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202994266U Expired - Fee Related CN201600218U (en) | 2009-12-18 | 2009-12-18 | Post-type pressure difference transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201600218U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278285A (en) * | 2013-06-08 | 2013-09-04 | 无锡隆盛科技股份有限公司 | Differential pressure sensor |
| CN105784251A (en) * | 2016-04-27 | 2016-07-20 | 中国电子科技集团公司第四十八研究所 | Corrosion resistant differential pressure core and manufacturing method thereof |
| CN112577658A (en) * | 2020-12-28 | 2021-03-30 | 安徽银汉机电科技有限公司 | Corrosion-resistant and easy-to-install column type differential pressure transmitter |
-
2009
- 2009-12-18 CN CN2009202994266U patent/CN201600218U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278285A (en) * | 2013-06-08 | 2013-09-04 | 无锡隆盛科技股份有限公司 | Differential pressure sensor |
| CN105784251A (en) * | 2016-04-27 | 2016-07-20 | 中国电子科技集团公司第四十八研究所 | Corrosion resistant differential pressure core and manufacturing method thereof |
| CN105784251B (en) * | 2016-04-27 | 2019-06-11 | 中国电子科技集团公司第四十八研究所 | A kind of corrosion resistance differential pressure core and its manufacturing method |
| CN112577658A (en) * | 2020-12-28 | 2021-03-30 | 安徽银汉机电科技有限公司 | Corrosion-resistant and easy-to-install column type differential pressure transmitter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2986961B1 (en) | Pressure sensor | |
| CN102778266B (en) | Water level redundancy measuring device | |
| CN201600218U (en) | Post-type pressure difference transmitter | |
| CN211234817U (en) | Temperature and pressure sensor | |
| CN201145584Y (en) | Pressure transmitter | |
| CN201229217Y (en) | Ceramic core pressure transmitter | |
| CN202013316U (en) | Differential pressure type flow resistance tester | |
| CN205228699U (en) | Based on high accuracy water tank ressure measurement system | |
| CN201464117U (en) | Electronic oil pressure sensor | |
| CN104316252A (en) | Split type hammering union fracturing mud pressure transmitter | |
| CN104420865A (en) | Integrated intelligent sensor for petrochemical well | |
| CN201060079Y (en) | Intelligent differential pressure cell | |
| CN208223705U (en) | A kind of oil pressure sensor | |
| CN203629635U (en) | Oil level detecting device | |
| CN208751776U (en) | A kind of pressure sensor | |
| CN207741829U (en) | A kind of fuel liquid level sensor | |
| CN202814461U (en) | Integrated static pressure and differential pressure detection device | |
| CN105403346A (en) | High precision measuring system based on water tank pressure | |
| CN202533212U (en) | Electronic oil pressure sensor with dynamic equivalent mode | |
| CN204327346U (en) | Intake manifold | |
| CN202255502U (en) | Flow sensor | |
| CN202485857U (en) | Digital display pressure gauge | |
| CN216080264U (en) | Novel fume chamber residual air volume control device | |
| CN204255540U (en) | Pointer band pressure gauge with digital display | |
| CN212844122U (en) | Differential pressure sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Post-type pressure difference transmitter Effective date of registration: 20110705 Granted publication date: 20101006 Pledgee: Bengbu SME credit Company limited by guarantee Pledgor: Anhui Keda Automation Group Co., Ltd. Registration number: 2011990000257 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20120607 Granted publication date: 20101006 Pledgee: Bengbu SME credit Company limited by guarantee Pledgor: Anhui Keda Automation Group Co., Ltd. Registration number: 2011990000257 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Post-type pressure difference transmitter Effective date of registration: 20120607 Granted publication date: 20101006 Pledgee: Bengbu SME finance Company limited by guarantee Pledgor: Anhui Keda Automation Group Co., Ltd. Registration number: 2012990000275 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151214 Granted publication date: 20101006 Pledgee: Bengbu financing guarantee Group Co., Ltd. Pledgor: Anhui Keda Automation Group Co., Ltd. Registration number: 2012990000275 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20151214 Registration number: 2012990000275 Pledgee after: Bengbu financing guarantee Group Co., Ltd. Pledgee before: Bengbu SME finance Company limited by guarantee |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |