CN107014553A - A kind of system of electronic oil pressure sensor - Google Patents
A kind of system of electronic oil pressure sensor Download PDFInfo
- Publication number
- CN107014553A CN107014553A CN201710422323.3A CN201710422323A CN107014553A CN 107014553 A CN107014553 A CN 107014553A CN 201710422323 A CN201710422323 A CN 201710422323A CN 107014553 A CN107014553 A CN 107014553A
- Authority
- CN
- China
- Prior art keywords
- circuit
- pressure
- oil pressure
- signal
- pressure sensor
- 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
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
- G01L9/06—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of piezo-resistive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
Abstract
The invention discloses a kind of system of electronic oil pressure sensor, include MEMS silicon pressure drag backpressure sensors, signal condition chip, zeroing circuit compensation circuit, voltage amplifier circuit, current amplification circuit, filter circuit, warning circuit, power circuit, the warning circuit includes alarm lamp, oil pressure dial gauge, the MEMS silicon pressure drag backpressure sensor, signal condition chip is connected, device for pressure measurement is detected to the pressure of machine oil, it is changed into electric signal for pressure signal and delivers to signal processing circuit, present invention assembling is convenient, change convenient, fixing-stable, it is simple in construction, it is practical, both production efficiency is improved, cost has been saved again.
Description
Technical field
The present invention relates to sensor field, more particularly to a kind of system of electronic oil pressure sensor.
Background technology
It is the sensor generally used on automobile and diesel vehicle in engine oil pressure pickup.Traditional engine oil pressure sensing
Device is all mechanical structure, and its Principle of Products is to utilize metallic membrane compressive deformation, passes through a set of complicated mechanical device
Promote cursor slide to be slided on slide wire resistance, make slide wire resistance value changes, to change the electric current of pressure gauge coil to detect pressure.Its
The defect of structure design is：Due to the plasticity and reminiscence characteristic, its stability and fatigue resistance of sensing element metallic membrane
It is poor；Slip plate part uses the constantan wires of Φ 0.08, and brush is the silvery white copper of Φ 0.12, and the structure makes line plate slipper
Wearability is poor；Pressure alarm part uses sliding contact form, bulb cold-state resistance very little of alarming, and temporary impact electric current is very
Greatly, it is also easy to produce electric arc during frequent power on/off and burns out alarm actuating contact.The inadequate natural endowment of these designs, adds engine manufacture water
The influence of many factors such as gentle road conditions, it is more to result in mechanical oil pressure sensor mechanical breakdown, such as brush, slip
Resistance weares and teares and ablation, alarm actuating contact wear and tear, and shock resistance is poor, and standardization level is low, and service life is short.
Invention CN 201653631U disclose what a kind of electronic oil pressure sensor provided by the present invention was used
Technical scheme is：Described electronic oil pressure sensor, by engine oil sensor shell, electronic component circuit board, plastics connect
Fitting is constituted, and described electronic component circuit board is made up of presser sensor component, electronic switch component, and described plastics connect
Above fitting, there is the electrical connector being connected with external circuit.
The content of the invention
The invention discloses a kind of system of electronic oil pressure sensor, it is characterised in that including, include MEMS
Silicon pressure drag backpressure sensor, signal condition chip, zeroing circuit compensation circuit, voltage amplifier circuit, Current amplifier electricity
Road, filter circuit, warning circuit, power circuit；The MEMS silicon pressure drag backpressure sensor and signal condition chip with
Voltage amplifier circuit is connected, the pressure for device for pressure measurement to be detected to machine oil, is changed into electric signal for pressure signal and is sent
To signal circuit.
Further, zeroing circuit compensation circuit is stated（3）With MEMS silicon pressure drag backpressure sensors（1）It is connected.
Further, zeroing circuit compensation circuit is stated（3）With MEMS silicon pressure drag backpressure sensors（1）It is connected.
Further, described warning circuit includes alarm lamp, oil pressure dial gauge.
A kind of advantage of the system for electronic oil pressure sensor that the present invention is provided is：Electronic formula car machine oil power
Sensing system, the high device for pressure measurement of high temperature resistant, corrosion-resistant, precision, from dependable performance, operating temperature range
Wide component, and also need to take interference protection measure in circuit, to improve the reliability of sensor, present invention assembling
It is convenient, change convenient, fixing-stable is simple in construction, practical, both improves production efficiency, cost has been saved again.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structured flowchart of the system embodiment of electronic oil pressure sensor of the invention.
Wherein, MEMS silicon pressure drag backpressure sensor（1）, signal condition chip（2）, zeroing circuit compensation circuit
（3）, voltage amplifier circuit（4）, current amplification circuit（5）, filter circuit（6）, warning circuit（7）, power circuit（8）.
Embodiment
The invention discloses a kind of system of electronic oil pressure sensor, include MEMS silicon pressure drag back pressure type pressure
Sensor（1）, signal condition chip（2）, zeroing circuit compensation circuit（3）, voltage amplifier circuit（4）, current amplification circuit
（5）, filter circuit（6）, warning circuit（7）, power circuit（8）Device for pressure measurement detects the pressure of machine oil, by pressure signal
It is changed into electric signal and delivers to signal processing circuit, by voltage amplification and Current amplifier, by signal wire by the pressure after amplification
Force signal is connected to oil pressure dial gauge, changes the ratio between the electric current that 2 coils pass through inside oil pressure dial gauge, so as to indicate
The engine oil pressure of engine.By voltage amplification and the pressure signal of Current amplifier, while also with setting in warning circuit
Alarm voltage is compared, when less than alarm voltage, warning circuit then output alarm signal, and being lighted by alarming line
Alarm lamp.The mode of connection of electronic oil pressure sensor and traditional mechanical sensor are completely the same, can substitute machinery
Formula pressure sensor, is directly connected with automobile engine oil pressure indicator and low pressure alarming lamp, indicates diesel automobile engine
Engine oil pressure and offer low pressure alarming signal.Compared with traditional pressure resistance type oil pressure sensor, electronic formula car engine oil pressure
Sensor has the advantages that no mechanical moving element (i.e. contactless), precision are high, reliability is high, long lifespan, and meets automobile
The requirement of Electronic Development.
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear and detailed
Description, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, all other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.Referring to Fig. 1, a kind of electronic engine oil pressure provided in an embodiment of the present invention is passed
The system of sensor, MEMS silicon pressure drag backpressure sensors（1）With signal condition chip（2）It is connected with voltage amplifier circuit,
Pressure for device for pressure measurement to be detected to machine oil, is changed into electric signal for pressure signal and delivers to signal circuit.Alarm electricity
Road（7）Include alarm lamp, oil pressure dial gauge.Power circuit（8）With MEMS silicon pressure drag backpressure sensors（1）, signal
Conditioning chip（2）, voltage amplifier circuit（4）, current amplification circuit（5）, filter circuit（6）And warning circuit（7）It is connected, uses
In power module（8）For MEMS silicon pressure drag backpressure sensors（1）, signal condition chip（2）, zeroing circuit compensation circuit
（3）, voltage amplifier circuit（4）, current amplification circuit（5）, filter circuit（6）And warning circuit（7）The function of power supply, zeroing electricity
Road compensation circuit（3）With MEMS silicon pressure drag backpressure sensors（1）It is connected.Filter circuit is connected with warning circuit.Can be very
Height ensures the stability of work, and present invention assembling is convenient, changes convenient, fixing-stable is simple in construction, practical, both improves
Production efficiency, has saved cost again.
Be described in detail above to provided by the present invention, a kind of system of electronic oil pressure sensor for
Those of ordinary skill in the art, according to the thought of the embodiment of the present invention, have in specific embodiments and applications
Change part, in summary, this specification content should not be construed as limiting the invention.
Claims (5)
1. a kind of system of electronic oil pressure sensor, includes MEMS silicon pressure drag backpressure sensors（1）, signal
Conditioning chip（2）, zeroing circuit compensation circuit（3）, voltage amplifier circuit（4）, current amplification circuit（5）, filter circuit（6）、
Warning circuit（7）, power circuit（8）；
The MEMS silicon pressure drag backpressure sensor（1）With signal condition chip（2）It is connected, is used for voltage amplifier circuit
Device for pressure measurement is detected to the pressure of machine oil, is changed into electric signal for pressure signal and delivers to signal circuit, warning circuit
（7）Include alarm lamp, oil pressure dial gauge.
2. a kind of system of electronic oil pressure sensor according to claim 1, it is characterised in that the alarm electricity
Road（7）Include alarm lamp, oil pressure dial gauge.
3. a kind of system of electronic oil pressure sensor according to claim 1, it is characterised in that power circuit（8）
With MEMS silicon pressure drag backpressure sensors（1）, signal condition chip（2）, voltage amplifier circuit（4）, current amplification circuit
（5）, filter circuit（6）And warning circuit（7）It is connected, for power module（8）For MEMS silicon pressure drag back pressure type pressure sensings
Device（1）, signal condition chip（2）, zeroing circuit compensation circuit（3）, voltage amplifier circuit（4）, current amplification circuit（5）, filter
Wave circuit（6）And warning circuit（7）The function of power supply.
4. a kind of system of electronic oil pressure sensor according to claim 1, it is characterised in that the zeroing electricity
Road compensation circuit（3）With MEMS silicon pressure drag backpressure sensors（1）It is connected.
5. a kind of system of electronic oil pressure sensor according to claim 1, it is characterised in that described filtering
Circuit is connected with warning circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422323.3A CN107014553A (en) | 2017-06-07 | 2017-06-07 | A kind of system of electronic oil pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422323.3A CN107014553A (en) | 2017-06-07 | 2017-06-07 | A kind of system of electronic oil pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107014553A true CN107014553A (en) | 2017-08-04 |
Family
ID=59451032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710422323.3A Pending CN107014553A (en) | 2017-06-07 | 2017-06-07 | A kind of system of electronic oil pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107014553A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561837U (en) * | 2009-05-18 | 2010-08-25 | 刘恒 | Engine oil pressure alarm sensor for automobiles and tractors |
| CN202544954U (en) * | 2012-04-10 | 2012-11-21 | 武汉神动汽车电子电器有限公司 | Compatible step motor instrument and electronic engine oil pressure sensor of moving coil instrument |
| CN202853834U (en) * | 2012-07-27 | 2013-04-03 | 上海大潮电子技术有限公司 | Pressure measuring device with temperature drift compensation |
| CN203376107U (en) * | 2013-06-26 | 2014-01-01 | 温州跃卡汽车电器有限公司 | Electronic machine oil pressure sensor |
| CN203719814U (en) * | 2013-07-29 | 2014-07-16 | 温州跃卡汽车电器有限公司 | Piezoelectric oil pressure sensor |
| CN203869802U (en) * | 2014-05-12 | 2014-10-08 | 温州盛诺汽车电器有限公司 | Pressure sensing mechanism of machine oil pressure sensor |
-
2017
- 2017-06-07 CN CN201710422323.3A patent/CN107014553A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561837U (en) * | 2009-05-18 | 2010-08-25 | 刘恒 | Engine oil pressure alarm sensor for automobiles and tractors |
| CN202544954U (en) * | 2012-04-10 | 2012-11-21 | 武汉神动汽车电子电器有限公司 | Compatible step motor instrument and electronic engine oil pressure sensor of moving coil instrument |
| CN202853834U (en) * | 2012-07-27 | 2013-04-03 | 上海大潮电子技术有限公司 | Pressure measuring device with temperature drift compensation |
| CN203376107U (en) * | 2013-06-26 | 2014-01-01 | 温州跃卡汽车电器有限公司 | Electronic machine oil pressure sensor |
| CN203719814U (en) * | 2013-07-29 | 2014-07-16 | 温州跃卡汽车电器有限公司 | Piezoelectric oil pressure sensor |
| CN203869802U (en) * | 2014-05-12 | 2014-10-08 | 温州盛诺汽车电器有限公司 | Pressure sensing mechanism of machine oil pressure sensor |
Non-Patent Citations (1)
| Title |
|---|
| 王臻，王伟，杨明，任海燕，马亚军: "《背压式硅压阻压差传感器的研制》", 《导弹与航天运载技术》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170804 |