CN102384810A - Pressure transmitter - Google Patents

Pressure transmitter Download PDF

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Publication number
CN102384810A
CN102384810A CN2011102774126A CN201110277412A CN102384810A CN 102384810 A CN102384810 A CN 102384810A CN 2011102774126 A CN2011102774126 A CN 2011102774126A CN 201110277412 A CN201110277412 A CN 201110277412A CN 102384810 A CN102384810 A CN 102384810A
Authority
CN
China
Prior art keywords
pressure
processing chip
signal processing
display module
signal
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
Application number
CN2011102774126A
Other languages
Chinese (zh)
Inventor
郭振清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG TENFO ELECTRICAL GROUP CO Ltd
Original Assignee
GUANGDONG TENFO ELECTRICAL GROUP CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUANGDONG TENFO ELECTRICAL GROUP CO Ltd filed Critical GUANGDONG TENFO ELECTRICAL GROUP CO Ltd
Priority to CN2011102774126A priority Critical patent/CN102384810A/en
Publication of CN102384810A publication Critical patent/CN102384810A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a pressure transmitter, which is characterized by comprising an electronic control device and a pressure sensor. The pressure sensor is connected with the electronic control device through a signal line, the electronic control device comprises a signal processing chip and a display module, the signal processing chip is connected with the display module, a binding post is arranged on the signal processing chip and connected with the pressure sensor through a signal line. The pressure transmitter enables measuring range of the transmitter to be adjustable to be suitable for pressure measurement of an induction manifold of a combustion motor, and can enable pressure measuring range of the induction manifold in a unit full power range to correspond to 4-20 mA..

Description

Pressure unit
Technical field
The present invention relates to relate to pressure unit, relate in particular to a kind of pressure unit that is exclusively used in inlet manifold of IC engine.
Background technology
Existing pressure unit is fixing variation ratio, can not regulate its range.And this pressure deflection machine that can not regulate range is not suitable for the pressure unit of inlet manifold of IC engine.
Summary of the invention
The present invention is directed to the above-mentioned defective of prior art, a kind of pressure unit that is exclusively used in inlet manifold of IC engine is provided, so that this deflection machine measuring range adjustable.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of pressure unit; Comprise electronic-controlled installation and pressure transducer; Said pressure transducer is connected with electronic-controlled installation through signal wire, and electronic-controlled installation comprises signal processing chip, display module, and signal processing chip is connected with display module; Signal processing chip is provided with connection terminal, and this connection terminal is connected with pressure transducer through signal wire.
Preferably, also comprise zeroing correction knob, this zeroing is proofreaied and correct knob and is connected with signal processing chip with zeroing.
Can find out from above technical scheme; The present invention combines practical application to make the measuring range adjustable of transmitter; Measurement with the pressure that is suitable for inlet manifold of IC engine; And make the interior air-distributor pressure range of unit total power scope corresponding to 4~20mA, and balance each other so that in the auxiliary fuel supply-system of internal combustion engine generator group, become feed signals with electric power, accomplish the air-fuel ratio situation and differentiate.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed explanation.
The principle of work of pressure unit is: two kinds of pressure of measured medium feed high and low two pressure chambers, act on the both sides isolation diaphragm of δ element (being sensitive element), are sent to the measuring diaphragm both sides through the filling liquid in spacer and the element.Electrode on measuring diaphragm and the both sides insulating trip is respectively formed a capacitor.When pressure at both sides is inconsistent, cause measuring diaphragm to produce displacement, its displacement and pressure differential are directly proportional, so the both sides electric capacity does not just wait, through vibration and demodulation link, convert the signal that is directly proportional with pressure to.The principle of work of pressure unit and absolute pressure transducer is identical with differential pressure transmitter, and different is that low-pressure chamber pressure is atmospheric pressure or vacuum.
Pressure unit becomes digital signal through A/D converter with the current conversion of detuner, and its value is used for judging the input pressure value by microprocessor.The work of microprocessor control transmitter.In addition, it carry out linear sensorization.The replacement measurement range.Engineering unit conversion, damping, evolution, computings such as sensor fine setting, and diagnosis and digital communication.
Pressure unit 1 of the present invention; Comprise electronic-controlled installation and pressure transducer, said pressure transducer is connected with electronic-controlled installation through signal wire, and electronic-controlled installation comprises signal processing chip, display module; Signal processing chip is provided with connection terminal; This connection terminal is connected with pressure transducer through signal wire, and the detected pressure signal of processes sensor, is sent to display module after signal processing chip is handled pressure signal and shows.
As preferred implementation of the present invention, also comprise zeroing correction knob, this zeroing is proofreaied and correct knob and is connected with signal processing chip with zeroing.

Claims (2)

1. pressure unit; It is characterized in that: comprise electronic-controlled installation and pressure transducer; Said pressure transducer is connected with electronic-controlled installation through signal wire, and electronic-controlled installation comprises signal processing chip, display module, and signal processing chip is connected with display module; Signal processing chip is provided with connection terminal, and this connection terminal is connected with pressure transducer through signal wire.
2. pressure unit according to claim 1 is characterized in that: also comprise zeroing correction knob, this zeroing is proofreaied and correct knob and is connected with signal processing chip with zeroing.
CN2011102774126A 2011-09-19 2011-09-19 Pressure transmitter Pending CN102384810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011102774126A CN102384810A (en) 2011-09-19 2011-09-19 Pressure transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011102774126A CN102384810A (en) 2011-09-19 2011-09-19 Pressure transmitter

Publications (1)

Publication Number Publication Date
CN102384810A true CN102384810A (en) 2012-03-21

Family

ID=45824444

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011102774126A Pending CN102384810A (en) 2011-09-19 2011-09-19 Pressure transmitter

Country Status (1)

Country Link
CN (1) CN102384810A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104316257A (en) * 2014-10-29 2015-01-28 成都众山科技有限公司 Pressure transmitter using external sleeve for placing wireless module
CN104318742A (en) * 2014-10-29 2015-01-28 成都众山科技有限公司 Solar powered data measurement conveying structure
CN104316256A (en) * 2014-10-29 2015-01-28 成都众山科技有限公司 Pressure-adjustable transmitting device powered by solar panel
CN109084983A (en) * 2018-08-07 2018-12-25 李晨天 Inlet manifold comprehensive sensor based on barometric information analysis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2131100Y (en) * 1992-03-20 1993-04-28 东营区电子计量设备厂 Digital pressure gage with liquid crystal display
CN1106537A (en) * 1994-02-07 1995-08-09 张益敏 Pressure measuring device
CN2839992Y (en) * 2005-09-26 2006-11-22 张友国 Digital pressure sensor
US20070068264A1 (en) * 2003-04-29 2007-03-29 Endress + Hauser Gmbh + Co. Kg Pressure pickup with temperature compensation
CN201476927U (en) * 2009-08-11 2010-05-19 襄樊美瑞汽车传感器有限公司 Air pressure sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2131100Y (en) * 1992-03-20 1993-04-28 东营区电子计量设备厂 Digital pressure gage with liquid crystal display
CN1106537A (en) * 1994-02-07 1995-08-09 张益敏 Pressure measuring device
US20070068264A1 (en) * 2003-04-29 2007-03-29 Endress + Hauser Gmbh + Co. Kg Pressure pickup with temperature compensation
CN2839992Y (en) * 2005-09-26 2006-11-22 张友国 Digital pressure sensor
CN201476927U (en) * 2009-08-11 2010-05-19 襄樊美瑞汽车传感器有限公司 Air pressure sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104316257A (en) * 2014-10-29 2015-01-28 成都众山科技有限公司 Pressure transmitter using external sleeve for placing wireless module
CN104318742A (en) * 2014-10-29 2015-01-28 成都众山科技有限公司 Solar powered data measurement conveying structure
CN104316256A (en) * 2014-10-29 2015-01-28 成都众山科技有限公司 Pressure-adjustable transmitting device powered by solar panel
CN109084983A (en) * 2018-08-07 2018-12-25 李晨天 Inlet manifold comprehensive sensor based on barometric information analysis

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PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: GUANGDONG TIANFU ELECTRIC GROUP CO., LTD. TO: GUANGDONG TECCO ELECTRIC CO., LTD.

CB02 Change of applicant information

Address after: 528437 B building, No. 53 West Jiangling Road, torch hi tech Development Zone, Guangdong, Zhongshan

Applicant after: GUANGDONG TECCO ELECTRIC CO., LTD.

Address before: 528437 B building, No. 53 West Jiangling Road, torch hi tech Development Zone, Guangdong, Zhongshan

Applicant before: Guangdong Tenfo Electrical Group Co., Ltd.

C53 Correction of patent for invention or patent application
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120321

C02 Deemed withdrawal of patent application after publication (patent law 2001)