CN104390678A - Oil level measuring sensor - Google Patents
Oil level measuring sensor Download PDFInfo
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- CN104390678A CN104390678A CN201410670796.1A CN201410670796A CN104390678A CN 104390678 A CN104390678 A CN 104390678A CN 201410670796 A CN201410670796 A CN 201410670796A CN 104390678 A CN104390678 A CN 104390678A
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- ultrasonic
- level measurement
- measurement sensor
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Abstract
The invention discloses an oil level measuring sensor. The sensor comprises an ultrasonic detection element, a main control element and a power source, wherein the power source supplies power for the ultrasonic detection element and the main control element; the ultrasonic detection element is capable of realizing ultrasonic ranging and comprises an ultrasonic receiving unit and an ultrasonic emission unit; the main control element controls the ultrasonic emission unit to emit an ultrasonic signal; after the ultrasonic receiving unit receives the ultrasonic signal, the main control element processes the ultrasonic signal. The oil level measuring sensor is simple in structure and low in cost, and is capable of accurately controlling the condition of the oil levels by considering the influence of temperatures on the measurement accuracy.
Description
Technical field
The present invention relates to oil-level measurement field, particularly relate to a kind of level measurement sensor.
Background technology
At present, automobile oil level sensor detects the how many visual plant of automobile oil level.At present, the emerging a kind of electronic oil-level sensor of automobile in market, employing be advanced capacitive transducer Acquisition Circuit, easy for installation, output signal is flexibly.But simultaneously also there is larger defect, refuel and road bump time be easy to the liquid level foam produced and the false oil level produced, the data-signal of mistake is provided to instrument.
Meanwhile, in oil-level measurement field, the product of different principle technology emerges in an endless stream, but all there is following shortcoming: 1, low precision, substantially about 5%.2, power consumption is large, and electric current is not at tens milliamperes to more than 100 milliamperes etc.3, mechanical part is many, there are mechanical vibration and causes failure rate high.4, trouble is installed.5, can not identify that the oil of different oil product causes the measuring result error of different oil product large.
Summary of the invention
Technical matters to be solved by this invention is how to overcome that existing oil level detecting device installs complexity, low precision, power consumption is many, mechanical part is many, the defect of easy generation false data etc.
In order to solve the problems of the technologies described above, the invention provides a kind of level measurement sensor, described sensor comprises ultrasound examination element, master element and power supply, described power supply is that ultrasound examination element and master element are powered, described ultrasound examination element adopts ultrasonic ranging, comprise ultrasonic wave receive unit and ultrasonic transmitting element, described master element controls ultrasonic transmitting element and launches ultrasonic signal, after described ultrasonic wave receive unit receives described ultrasonic signal, described ultrasonic signal processes by described master element.
Described sensor also comprises temperature induction unit, and described temperature induction unit is used for the temperature in sensitive context.
Described master element is single-chip microcomputer, comprises timer in described single-chip microcomputer, and described timer is for the mistiming calculating hyperacoustic transmitted wave and receive between ripple.
Described ultrasonic wave receive unit comprises ultrasound wave receiving transducer, signal amplification circuit part and waveform translation circuit part.
Described sensor also comprises alarm unit, and described alarm unit carries out warning warning according to the result after master element process.
Obtained the temperature of ultrasound wave transmitted wave and the mistiming received between ripple and site environment by survey calculation, thus calculate the distance between ultrasound wave launching site to barrier.
Described ultrasonic transmitting element comprises ultrasonic transducer and reverser.
Described sensor comprises display unit, and described display unit is for showing current detected oil level.
Described display unit is LED light emitting diode; Described power supply is solar cell.
Level measurement sensor of the present invention, has following beneficial effect:
1, level measurement sensor structure of the present invention is simple, cost is low and consider the impact of temperature on measuring accuracy, and then has grasped the situation of oil level exactly.
2, found range by ultrasound wave, and and carry out complementation between temperature sensor, effectively prevent the impact of the temperature in oil-level measurement process on measuring accuracy.
3, by display unit and alarm unit, the present situation of oil level can accurately be grasped.
4, the present invention uses solar cell as power supply, energy-conserving and environment-protective, and reduces costs.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system chart of level measurement sensor of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all belongs to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of level measurement sensor, described sensor comprises ultrasound examination element, master element and power supply, described power supply is that ultrasound examination element and master element are powered, described ultrasound examination element adopts ultrasonic ranging, comprise ultrasonic wave receive unit and ultrasonic transmitting element, described master element controls ultrasonic transmitting element and launches ultrasonic signal, after described ultrasonic wave receive unit receives described ultrasonic signal, described ultrasonic signal processes by described master element.
Described sensor also comprises temperature induction unit, and described temperature induction unit is used for the temperature in sensitive context.
Described master element is single-chip microcomputer, comprises timer in described single-chip microcomputer, and described timer is for the mistiming calculating hyperacoustic transmitted wave and receive between ripple.
Described ultrasonic wave receive unit comprises ultrasound wave receiving transducer, signal amplification circuit part and waveform translation circuit part.
Described sensor also comprises alarm unit, and described alarm unit carries out warning warning according to the result after master element process.
Obtained the temperature of ultrasound wave transmitted wave and the mistiming received between ripple and site environment by survey calculation, thus calculate the distance between ultrasound wave launching site to barrier.
Described ultrasonic transmitting element comprises ultrasonic transducer and reverser.
Described sensor comprises display unit, and described display unit is for showing current detected oil level.
Described display unit is LED light emitting diode; Described power supply is solar cell.
Level measurement sensor of the present invention, has following beneficial effect:
1, level measurement sensor structure of the present invention is simple, cost is low and consider the impact of temperature on measuring accuracy, and then has grasped the situation of oil level exactly.
2, found range by ultrasound wave, and and carry out complementation between temperature sensor, effectively prevent the impact of the temperature in oil-level measurement process on measuring accuracy.
3, by display unit and alarm unit, the present situation of oil level can accurately be grasped.
4, the present invention uses solar cell as power supply, energy-conserving and environment-protective, and reduces costs.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a level measurement sensor, is characterized in that, described sensor comprises ultrasound examination element, master element and power supply, and described power supply is that ultrasound examination element and master element are powered,
Described ultrasound examination element adopts ultrasonic ranging, comprise ultrasonic wave receive unit and ultrasonic transmitting element, described master element controls ultrasonic transmitting element and launches ultrasonic signal, after described ultrasonic wave receive unit receives described ultrasonic signal, described ultrasonic signal processes by described master element.
2. level measurement sensor according to claim 1, is characterized in that, described sensor also comprises temperature induction unit, and described temperature induction unit is used for the temperature in sensitive context.
3. level measurement sensor according to claim 2, is characterized in that, described master element is single-chip microcomputer, comprises timer in described single-chip microcomputer, and described timer is for the mistiming calculating hyperacoustic transmitted wave and receive between ripple.
4. level measurement sensor according to claim 3, is characterized in that, described ultrasonic wave receive unit comprises ultrasound wave receiving transducer, signal amplification circuit part and waveform translation circuit part.
5. level measurement sensor according to claim 4, is characterized in that, described sensor also comprises alarm unit, and described alarm unit carries out warning warning according to the result after master element process.
6. level measurement sensor according to claim 5, is characterized in that, is obtained the temperature of ultrasound wave transmitted wave and the mistiming received between ripple and site environment, thus calculate the distance between ultrasound wave launching site to barrier by survey calculation.
7. level measurement sensor according to claim 6, is characterized in that, described ultrasonic transmitting element comprises ultrasonic transducer and reverser.
8. level measurement sensor according to claim 7, is characterized in that, described sensor comprises display unit, and described display unit is for showing current detected oil level.
9. level measurement sensor according to claim 8, is characterized in that, described display unit is LED light emitting diode.
10. level measurement sensor according to claim 9, is characterized in that, described power supply is solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670796.1A CN104390678A (en) | 2014-11-21 | 2014-11-21 | Oil level measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670796.1A CN104390678A (en) | 2014-11-21 | 2014-11-21 | Oil level measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390678A true CN104390678A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410670796.1A Pending CN104390678A (en) | 2014-11-21 | 2014-11-21 | Oil level measuring sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189513A (en) * | 2020-01-09 | 2020-05-22 | 泰华智慧产业集团股份有限公司 | Ultrasonic liquid level measurement method and device and ultrasonic liquid level meter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2413273Y (en) * | 2000-03-09 | 2001-01-03 | 同济大学 | Ultrasonic oil-water interface detector |
| CN1350163A (en) * | 2000-10-20 | 2002-05-22 | 同济大学 | Continuous ultrasonic low-density powder level measuring instrument |
| CN2618151Y (en) * | 2003-04-10 | 2004-05-26 | 五邑大学 | Intelligent supersonic level sensor |
| EP1480021A2 (en) * | 2003-05-20 | 2004-11-24 | Endress + Hauser GmbH + Co. | Method for fluid level measurement |
| CN201622097U (en) * | 2009-09-18 | 2010-11-03 | 武汉理工大学 | Ultrasonic gasoline tank oil level sensor |
| CN202024805U (en) * | 2011-03-13 | 2011-11-02 | 东北石油大学 | Portable non-contact ultrasonic detector for tank boy liquid level |
-
2014
- 2014-11-21 CN CN201410670796.1A patent/CN104390678A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2413273Y (en) * | 2000-03-09 | 2001-01-03 | 同济大学 | Ultrasonic oil-water interface detector |
| CN1350163A (en) * | 2000-10-20 | 2002-05-22 | 同济大学 | Continuous ultrasonic low-density powder level measuring instrument |
| CN2618151Y (en) * | 2003-04-10 | 2004-05-26 | 五邑大学 | Intelligent supersonic level sensor |
| EP1480021A2 (en) * | 2003-05-20 | 2004-11-24 | Endress + Hauser GmbH + Co. | Method for fluid level measurement |
| CN201622097U (en) * | 2009-09-18 | 2010-11-03 | 武汉理工大学 | Ultrasonic gasoline tank oil level sensor |
| CN202024805U (en) * | 2011-03-13 | 2011-11-02 | 东北石油大学 | Portable non-contact ultrasonic detector for tank boy liquid level |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189513A (en) * | 2020-01-09 | 2020-05-22 | 泰华智慧产业集团股份有限公司 | Ultrasonic liquid level measurement method and device and ultrasonic liquid level meter |
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Application publication date: 20150304 |
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