CN203629635U - Oil level detecting device - Google Patents
Oil level detecting device Download PDFInfo
- Publication number
- CN203629635U CN203629635U CN201320522448.0U CN201320522448U CN203629635U CN 203629635 U CN203629635 U CN 203629635U CN 201320522448 U CN201320522448 U CN 201320522448U CN 203629635 U CN203629635 U CN 203629635U
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- Prior art keywords
- pair
- hole
- pressure
- oil level
- analog
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- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses an oil level detecting device. The oil level detecting device is characterized in that a pair of pressure transmitters (3) is respectively mounted on a pair of pressure sensors (2), signal output ends of the pair of pressure sensors (2) are electrically connected with signal input ends of an analog-digital converter (4) by the pair of pressure transmitters (3), a signal output end of the analog-digital converter (4) is connected with a signal input end of a single chip microcomputer (5) by signals, and the pair of pressure transmitters (3) is electrically connected with a power source (6). The oil level detecting device has the advantages that mechanical contact is omitted in an integral measuring system, the pressure is directly detected by the pressure sensors, accordingly, the height of an oil level can be computed, the oil level detecting device is stable and reliable, and an accurate measurement effect can be realized.
Description
Technical field
The utility model relates to detection field, is specifically related to a kind of oil liquid level pick-up unit.
Background technology
?at present, traditional sensing automotive oil level detects, and is all generally to carry out mechanical connection by oil float with slider type rheostat, the position of oil float changes, drive sliding contact to slide on rheochord, thereby change rheostatic resistance, determine the oil mass of fuel tank by resistance.This method is very high to rheochord part requirement, abrasion resistance need reach millions of times, and there is Mechanical Contact between contact and rheostat diaphragm, the pollutant such as greasy dirt, dust can cause loose contact, thereby cause that oil level detection lost efficacy, so design a kind of new oil liquid level pick-up unit, can detect accurately, reliably the height of oil liquid level.
Utility model content
The purpose of this utility model is exactly at present, traditional sensing automotive oil level detects, all generally to carry out mechanical connection by oil float with slider type rheostat, the position of oil float changes, drive sliding contact to slide on rheochord, thereby change rheostatic resistance, determine the oil mass of fuel tank by resistance.This method is very high to rheochord part requirement, abrasion resistance need reach millions of times, and there is Mechanical Contact between contact and rheostat diaphragm, the pollutant such as greasy dirt, dust can cause loose contact, thereby cause that oil level detection lost efficacy, so design a kind of new oil liquid level pick-up unit, can detect accurately, reliably the deficiency of the height of oil liquid level, and a kind of oil liquid level pick-up unit is provided.
The utility model is by metal catheter, a pair of pressure transducer, a pair of pressure unit, analog to digital converter, single-chip microcomputer and power supply composition, on metal catheter, have A hole and B hole, A hole is positioned at the below in B hole, a pair of pressure transducer is arranged on respectively on A hole and B hole, a pair of pressure unit is arranged on respectively on a pair of pressure transducer, the signal output part of a pair of pressure transducer is electrically connected with the signal input part of analog to digital converter by a pair of pressure unit, the signal output part of analog to digital converter is connected with the signal input part signal of single-chip microcomputer, a pair of pressure unit is electrically connected with power supply.
Between A hole and B hole, distance is 1cm.
It also has display, and the signal output part of single-chip microcomputer is electrically connected with the signal input part of display, and display is electrically connected with power supply.
Also have casing, analog to digital converter, single-chip microcomputer, power supply and display 7 are arranged on respectively in casing.
The utility model advantage is: in whole measuring system, there is not Mechanical Contact, and directly adopts pressure sensor detected pressures, thus calculating the height of oil liquid level, this device is reliable and stable, measures accurately.
brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model is by metal catheter 1, a pair of pressure transducer 2, a pair of pressure unit 3, analog to digital converter 4, single-chip microcomputer 5 and power supply 6 form, on metal catheter 1, have A hole and B hole, A hole is positioned at the below in B hole, a pair of pressure transducer 2 is arranged on respectively on A hole and B hole, a pair of pressure unit 3 is arranged on respectively on a pair of pressure transducer 2, the signal output part of a pair of pressure transducer 2 is electrically connected with the signal input part of analog to digital converter 4 by a pair of pressure unit 3, the signal output part of analog to digital converter 4 is connected with the signal input part signal of single-chip microcomputer 5, a pair of pressure unit 3 is electrically connected with power supply 6.
Between A hole and B hole, distance is 1cm.
It also has display 7, and the signal output part of single-chip microcomputer 5 is electrically connected with the signal input part of display 7, and display 7 is electrically connected with power supply 6.
Also have casing 8, analog to digital converter 4, single-chip microcomputer 5, power supply 6 and display 7 are arranged on respectively in casing 8.
Principle of work: a pair of pressure transducer 2 detects the pressure of two positions, a pair of pressure unit 3 amplifies pressure sensor signal, by wire, the signal after amplifying is sent to analog to digital converter 4, analog to digital converter 4 converts pressure signal to digital signal, and be input to single-chip microcomputer 5, it is poor that single-chip microcomputer 5 first calculates two pressure signals that collect, obtain the density of fluid, again by the image data of the pressure transducer on B hole, according to the fluid density value having calculated, calculate the height of center sensor positional distance oil level, and on display 7, show (because of pair of sensors 2 known apart from the centre distance between fuel tank bottom and two sensors, therefore can calculate accurately the value of fuel tank inner fluid position, thereby calculate the fluid amount of fuel tank).
Claims (4)
1. an oil liquid level pick-up unit, it is characterized in that it is by metal catheter (1), a pair of pressure transducer (2), a pair of pressure unit (3), analog to digital converter (4), single-chip microcomputer (5) and power supply (6) composition, on metal catheter (1), have A hole and B hole, A hole is positioned at the below in B hole, a pair of pressure transducer (2) is arranged on respectively on A hole and B hole, a pair of pressure unit (3) is arranged on respectively on a pair of pressure transducer (2), the signal output part of a pair of pressure transducer (2) is electrically connected with the signal input part of analog to digital converter (4) by a pair of pressure unit (3), the signal output part of analog to digital converter (4) is connected with the signal input part signal of single-chip microcomputer (5), a pair of pressure unit (3) is electrically connected with power supply (6).
2. a kind of oil liquid level pick-up unit according to claim 1, is characterized in that between A hole and B hole, distance is 1cm.
3. a kind of oil liquid level pick-up unit according to claim 1, is characterized in that it also has display (7), and the signal output part of single-chip microcomputer (5) is electrically connected with the signal input part of display (7), and display (7) is electrically connected with power supply (6).
4. a kind of oil liquid level pick-up unit according to claim 3, is characterized in that casing (8) in addition, and analog to digital converter (4), single-chip microcomputer (5), power supply (6) and display (7) are arranged on respectively in casing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522448.0U CN203629635U (en) | 2013-08-26 | 2013-08-26 | Oil level detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522448.0U CN203629635U (en) | 2013-08-26 | 2013-08-26 | Oil level detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629635U true CN203629635U (en) | 2014-06-04 |
Family
ID=50816101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320522448.0U Expired - Fee Related CN203629635U (en) | 2013-08-26 | 2013-08-26 | Oil level detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674161A (en) * | 2013-08-26 | 2014-03-26 | 湖北东光电子股份有限公司 | Oil level detecting device |
| US10876878B2 (en) | 2017-03-29 | 2020-12-29 | Weston Aerospace Limited | Liquid level monitoring system |
-
2013
- 2013-08-26 CN CN201320522448.0U patent/CN203629635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674161A (en) * | 2013-08-26 | 2014-03-26 | 湖北东光电子股份有限公司 | Oil level detecting device |
| US10876878B2 (en) | 2017-03-29 | 2020-12-29 | Weston Aerospace Limited | Liquid level monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |