CN204758195U - Voltage type oil pressure sensor - Google Patents
Voltage type oil pressure sensor Download PDFInfo
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- CN204758195U CN204758195U CN201520357236.0U CN201520357236U CN204758195U CN 204758195 U CN204758195 U CN 204758195U CN 201520357236 U CN201520357236 U CN 201520357236U CN 204758195 U CN204758195 U CN 204758195U
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Abstract
The utility model discloses a voltage type oil pressure sensor, which comprises a housin, install the forced induction chip on the casing, the signal output part of forced induction chip is connected with the singlechip, the input of singlechip is connected with the power connecting wire, the power connecting wire is connected with the power connection, the signal output part of singlechip is connected with the DA converter, the signal output part of DA converter is connected with the voltage output line, the voltage output line connection has voltage output to connect. Direct action is in when pressure the surface of forced induction chip, the forced induction chip produces voltage signal, inputs voltage signal handle in the singlechip, data output after MCU processing accomplishes arrives the DA converter converts data signal into controller that analog signal exports the unit. The utility model discloses directly convert pressure signal into the signal of telecommunication, the reliability is high, jam -proof ability reinforce, and it is more accurate to detect.
Description
Technical field
The utility model relates to a kind of oil pressure sensor.
Background technology
On the diesel generator set of mechanical speed regulation method and electronic speed regulation mode, need with oil pressure sensor detected pressures signal, and output to the controller of unit, resistor-type oil pressure sensor is used in prior art, if resistor-type oil pressure sensor internal main is responded to by magnetic head contact change resistance, its magnetic head contact is fragile, and stability is poor, antijamming capability is low, and the data of detection are inaccurate.
Utility model content
Technical problem to be solved in the utility model is to provide one and directly pressure signal is converted to electric signal, and reliability is high, long service life, and anti-tampering ability is strong, detects voltage-type oil pressure sensor more accurately.
For solving the problems of the technologies described above, the technical solution of the utility model is: voltage-type oil pressure sensor, comprise housing, described housing is provided with pressure sensitive chip, the signal output part of described pressure sensitive chip is connected with the single-chip microcomputer being positioned at described housing, the input end of described single-chip microcomputer is connected with electric power connection line, described electric power connection line stretches out described housing and is connected with power connection, the signal output part of described single-chip microcomputer is connected with D/A converter, the signal output part of described D/A converter is connected with voltage output line, described voltage output line stretches out described housing and is connected with voltage out splice going splice.
As preferred technical scheme, described pressure sensitive chip comprises pressure sensing diaphragm, and described pressure sensing diaphragm is connected with piezoelectricity change-over circuit, and the signal output part of described piezoelectricity change-over circuit is connected with described single-chip microcomputer.
As the improvement to technique scheme, described pressure sensitive chip, described electric power connection line and be respectively equipped with O-ring seal between described voltage output line and described housing.
Owing to have employed technique scheme, voltage-type oil pressure sensor, comprise housing, described housing is provided with pressure sensitive chip, the signal output part of described pressure sensitive chip is connected with the single-chip microcomputer being positioned at described housing, the input end of described single-chip microcomputer is connected with electric power connection line, described electric power connection line stretches out described housing and is connected with power connection, the signal output part of described single-chip microcomputer is connected with D/A converter, the signal output part of described D/A converter is connected with voltage output line, and described voltage output line stretches out described housing and is connected with voltage out splice going splice.Be used on the diesel generator set of mechanical speed regulation method and electronic speed regulation mode, described power connection can be connected with the control system power supply of diesel generator set, simple and convenient, and described voltage out splice going splice is connected with the controller of unit.When pressure acts directly on the surface of described pressure sensitive chip, described pressure sensitive chip produces the voltage signal of the highly linear be directly proportional to pressure, voltage signal is input in described single-chip microcomputer and processes by described pressure sensitive chip, data after described single-chip microcomputer process completes output to described D/A converter, and digital signal is converted to the controller of analog signal output to unit by described D/A converter.Pressure signal is directly converted to electric signal by the utility model, and reliability is high, long service life, and anti-tampering ability is strong, and it is more accurate to detect.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the utility model embodiment.
In figure: 1-housing; 2-pressure sensitive chip; 3-single-chip microcomputer; 4-electric power connection line; 5-power connection; 6-D/A converter; 7-voltage output line; 8-voltage out splice going splice; 9-O-ring seal.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
As shown in Figure 1, voltage-type oil pressure sensor, comprise housing 1, described housing 1 is provided with pressure sensitive chip 2, the signal output part of described pressure sensitive chip 2 is connected with the single-chip microcomputer 3 being positioned at described housing 1, the input end of described single-chip microcomputer 3 is connected with electric power connection line 4, described electric power connection line 4 stretches out described housing 1 and is connected with power connection 5, the signal output part of described single-chip microcomputer 3 is connected with D/A converter 6, the signal output part of described D/A converter 6 is connected with voltage output line 7, described voltage output line 7 stretches out described housing 1 and is connected with voltage out splice going splice 8.Be used on the diesel generator set of mechanical speed regulation method and electronic speed regulation mode, described power connection 5 can be connected with the control system power supply of diesel generator set, simple and convenient, and described voltage out splice going splice 8 is connected with the controller of unit.When pressure acts directly on the surface of described pressure sensitive chip 2, described pressure sensitive chip 2 produces the voltage signal of the highly linear be directly proportional to pressure, voltage signal is input in described single-chip microcomputer 3 and processes by described pressure sensitive chip 2, data after described single-chip microcomputer 3 has processed output to described D/A converter 6, and digital signal is converted to the controller of analog signal output to unit by described D/A converter 6.Pressure signal is directly converted to electric signal by the utility model, and reliability is high, long service life, and anti-tampering ability is strong, and it is more accurate to detect.
Described pressure sensitive chip 2 comprises pressure sensing diaphragm, and described pressure sensing diaphragm is connected with piezoelectricity change-over circuit, and the signal output part of described piezoelectricity change-over circuit is connected with described single-chip microcomputer 3.When pressure acts directly on the surface of described pressure sensing diaphragm, described pressure sensing diaphragm is made to produce small deformation, this small deformation is for conversion into the voltage signal of the highly linear be directly proportional to pressure by the piezoelectricity change-over circuit be connected with described pressure sensing diaphragm, then voltage signal is outputted in described single-chip microcomputer 3 and process, described piezoelectricity change-over circuit is known technology to those skilled in the art, and its concrete device composition and circuit connection thereof do not repeat them here.
Described pressure sensitive chip 2, described electric power connection line 4 and be respectively equipped with O-ring seal 9 between described voltage output line 7 and described housing 1, said structure guarantees favorable sealing property, ensures the quality of product and normal work.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. voltage-type oil pressure sensor, comprise housing, it is characterized in that: described housing is provided with pressure sensitive chip, the signal output part of described pressure sensitive chip is connected with the single-chip microcomputer being positioned at described housing, the input end of described single-chip microcomputer is connected with electric power connection line, described electric power connection line stretches out described housing and is connected with power connection, the signal output part of described single-chip microcomputer is connected with D/A converter, the signal output part of described D/A converter is connected with voltage output line, and described voltage output line stretches out described housing and is connected with voltage out splice going splice.
2. voltage-type oil pressure sensor as claimed in claim 1, it is characterized in that: described pressure sensitive chip comprises pressure sensing diaphragm, described pressure sensing diaphragm is connected with piezoelectricity change-over circuit, and the signal output part of described piezoelectricity change-over circuit is connected with described single-chip microcomputer.
3. voltage-type oil pressure sensor as claimed in claim 1 or 2, is characterized in that: described pressure sensitive chip, described electric power connection line and be respectively equipped with O-ring seal between described voltage output line and described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357236.0U CN204758195U (en) | 2015-05-28 | 2015-05-28 | Voltage type oil pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357236.0U CN204758195U (en) | 2015-05-28 | 2015-05-28 | Voltage type oil pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204758195U true CN204758195U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520357236.0U Active CN204758195U (en) | 2015-05-28 | 2015-05-28 | Voltage type oil pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204758195U (en) |
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2015
- 2015-05-28 CN CN201520357236.0U patent/CN204758195U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 261061 No. 197 Fushou East Street, Weifang High-tech Zone, Shandong Province Patentee after: Weichai Electric Equipment Co., Ltd. Address before: 261061 Jiaweichai Power Generation Equipment Co., Ltd. No. 197 Fushou East Street, Weifang High-tech Zone, Shandong Province Patentee before: WEICHAI POWER GENERATION EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |