CN203422137U - Oil level measurement switching circuit - Google Patents
Oil level measurement switching circuit Download PDFInfo
- Publication number
- CN203422137U CN203422137U CN201320379199.4U CN201320379199U CN203422137U CN 203422137 U CN203422137 U CN 203422137U CN 201320379199 U CN201320379199 U CN 201320379199U CN 203422137 U CN203422137 U CN 203422137U
- Authority
- CN
- China
- Prior art keywords
- amplifier
- chip microcomputer
- converter
- oil level
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses an oil level measurement switching circuit which comprises a sensor, an amplifier, an A/D converter, a single chip microcomputer and displaying equipment. The amplifier, the A/D converter, the single chip microcomputer and the displaying equipment are connected in sequence, the sensor is connected with the amplifier, and the displaying equipment is composed of eight sections of digital tubes. The sensor converts capacitance variation generated by the change of the oil level in an oil tank into corresponding electric signals and outputs the electric signals, and the conversion from non electric quantities to electric quantities is achieved. The electric signals are transmitted to the amplifier, and the amplifier carries out processing such as amplifying on the electric signals. The amplified electric signals are converted by the A/D converter, so that analog quantities are converted into digital quantities, and the data output end of the A/D converter enables the digital quantities to be connected with the single chip microcomputer through a data bus. Finally, the complete information is transmitted to the displaying equipment through the analysis and processing of the single chip microcomputer, and the displaying equipment converts the information into a corresponding oil level height to be displayed.
Description
Technical field
The utility model relates to the signals collecting field of measuring technique of sensor, specifically refers to oil-level measurement change-over circuit.
Background technology
In current detection field, capacitance type sensor is simple in structure with it, dynamic response good, highly sensitive, the advantage such as can work under rugged surroundings and being widely used.But because the electric capacity of capacitance type sensor is generally very little, the modulate circuit of sensor is often subject to the impact of stray capacitance and environmental change and is difficult to realize high-acruracy survey.
Utility model content
The utility model, by oil-level measurement change-over circuit is set, solves the problems such as impact that sensor is subject to environmental change, reaches the object that high-acruracy survey detects oil level.
The purpose of this utility model reaches by the following technical programs:
The utility model comprises sensor, amplifier, A/D converter, single-chip microcomputer and display device, and described amplifier, A/D converter, single-chip microcomputer and display device are connected successively, and described sensor is connected with amplifier, and described display device is 8 segment numeral pipes.The area coverage that sensor mainly utilizes its two electrode changes with the variation of oil level in tested fuel tank, thereby causes that the relation of corresponding electric capacitance change carries out oil-level measurement.The capacitance change that sensor produces the variation of oil level in fuel tank converts corresponding electric signal output to, realizes non electrical quantity to the conversion of electric weight; Electric signal transmission is to amplifier, and amplifier is to processing such as electric signal amplify; Amplification signal after processing is realized and is converted analog quantity to digital quantity by A/D converter, and the data output end of A/D converter is connected by data bus digital quantity again with single-chip microcomputer; Finally, under the analysis and processing of single-chip microcomputer, by complete communication, to display device, display device is 8 segment numeral pipes, and it adopts emitting red light to show, facial mask background color is transparent in black word, window, has the advantages such as low energy consumption, high reliability, high life; Display device will convert corresponding level height to and show.The utility model has measurement, Presentation Function to the oil level degree of depth, and has simple in structure, with low cost, steady performance.
Further, also comprise the alarm being connected with single-chip microcomputer.In the process of moving, if oil level lower than certain when height, the alarm being connected with single-chip microcomputer can receive order and start alarm, the security incident causing because of leakage of oil or oil starvation in the time of can effectively avoiding running at high speed.
Further, as preferably, described amplifier is ADC0809.
Further, as preferably, described single-chip microcomputer is AT89S51.
The utility model compared with prior art, there is following advantage and beneficial effect:
1 the utility model comprises sensor, amplifier, A/D converter, single-chip microcomputer and display device, and described amplifier, A/D converter, single-chip microcomputer and display device are connected successively, and described sensor is connected with amplifier, and described display device is 8 segment numeral pipes.The utility model has measurement, Presentation Function to the oil level degree of depth, and has simple in structure, with low cost, steady performance.
2 the utility model also comprise the alarm being connected with single-chip microcomputer.In the process of moving, if oil level lower than certain when height, the alarm being connected with single-chip microcomputer can receive order and start alarm, the security incident causing because of leakage of oil or oil starvation in the time of can effectively avoiding running at high speed.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Embodiment 1
As shown in Figure 1, the present embodiment comprises sensor, amplifier, A/D converter, single-chip microcomputer and display device, described amplifier, A/D converter, single-chip microcomputer and display device are connected successively, and described sensor is connected with amplifier, and described display device is 8 segment numeral pipes.The area coverage that sensor mainly utilizes its two electrode changes with the variation of oil level in tested fuel tank, thereby the relation that causes corresponding electric capacitance change is carried out oil-level measurement, the capacitance change that sensor produces the variation of oil level in fuel tank converts corresponding electric signal output to, realizes non electrical quantity to the conversion of electric weight; Electric signal transmission is to amplifier, and amplifier is to processing such as electric signal amplify; Amplification signal after processing is realized and is converted analog quantity to digital quantity by A/D converter, and the data output end of A/D converter is connected by data bus digital quantity again with single-chip microcomputer; Finally, under the analysis and processing of single-chip microcomputer, by complete communication, to display device, display device is 8 segment numeral pipes, and it adopts emitting red light to show, facial mask background color is transparent in black word, window, has the advantages such as low energy consumption, high reliability, high life; Display device will convert corresponding level height to and show.
Embodiment 2
As shown in Figure 1, the present embodiment, on the basis of embodiment 1, further, also comprises the alarm being connected with single-chip microcomputer, and display device is 8 segment numeral pipes.In the process of moving, if oil level lower than certain when height, the alarm being connected with single-chip microcomputer can receive order and start alarm, the security incident causing because of leakage of oil or oil starvation in the time of can effectively avoiding running at high speed; 8 segment numeral pipes adopt emitting red light to show, facial mask background color is transparent in black word, window; There is the advantages such as low energy consumption, high reliability, high life.
As preferably, described amplifier is ADC0809.
As preferably, described single-chip microcomputer is AT89S51.
Claims (4)
1. oil-level measurement change-over circuit, it is characterized in that: comprise sensor, amplifier, A/D converter, single-chip microcomputer and display device, described amplifier, A/D converter, single-chip microcomputer and display device are connected successively, and described sensor is connected with amplifier, and described display device is 8 segment numeral pipes.
2. oil-level measurement change-over circuit according to claim 1, is characterized in that: also comprise the alarm being connected with single-chip microcomputer.
3. oil-level measurement change-over circuit according to claim 1, is characterized in that: described amplifier is ADC0809.
4. oil-level measurement change-over circuit according to claim 1, is characterized in that: described single-chip microcomputer is AT89S51.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320379199.4U CN203422137U (en) | 2013-06-28 | 2013-06-28 | Oil level measurement switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320379199.4U CN203422137U (en) | 2013-06-28 | 2013-06-28 | Oil level measurement switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422137U true CN203422137U (en) | 2014-02-05 |
Family
ID=50021232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320379199.4U Expired - Fee Related CN203422137U (en) | 2013-06-28 | 2013-06-28 | Oil level measurement switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203422137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323076A (en) * | 2013-06-28 | 2013-09-25 | 成都众易通科技有限公司 | Oil level measurement conversion circuit |
| CN104568048A (en) * | 2015-01-27 | 2015-04-29 | 张家港亚楠汽车电器有限公司 | Vehicle oil quantity monitoring device |
-
2013
- 2013-06-28 CN CN201320379199.4U patent/CN203422137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323076A (en) * | 2013-06-28 | 2013-09-25 | 成都众易通科技有限公司 | Oil level measurement conversion circuit |
| CN104568048A (en) * | 2015-01-27 | 2015-04-29 | 张家港亚楠汽车电器有限公司 | Vehicle oil quantity monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202101754U (en) | Bridge vibration detection device | |
| CN204474223U (en) | A kind of winch control system based on wireless technology | |
| CN203422137U (en) | Oil level measurement switching circuit | |
| CN203241111U (en) | Vehicle oil tank oil level detection device | |
| CN204882519U (en) | Gaseous detection device | |
| CN205176139U (en) | Wireless voice insulator resistance tester | |
| CN207798941U (en) | A kind of long-range amplitude versus frequency characte measuring device based on STM32 | |
| CN202994903U (en) | Hand-held digital display phase checking device | |
| CN203812059U (en) | A remote measurement and control terminal apparatus | |
| CN204116404U (en) | A kind of ultra-weak electronic signal measurement by magnification circuit of fast detector | |
| CN203837808U (en) | Differential-strain-sheet-based type pole tower vibration monitoring device | |
| CN103323076A (en) | Oil level measurement conversion circuit | |
| CN203688649U (en) | Industrial three-phase isolation ammeter | |
| CN204043705U (en) | A kind of portable warm Humidity Detection equipment | |
| CN204090017U (en) | A kind of law-enforcing recorder being provided with alcohol monitoring device | |
| CN105136244A (en) | Method for measuring oil level stably | |
| CN203241550U (en) | SCM(single chip microcomputer)-based environment remote monitoring device | |
| CN204536355U (en) | A kind of long-range wind speed and direction measuring device | |
| CN202220626U (en) | Monitoring protector for oil level of oil tank, thermal expansion and oil servo-motor | |
| CN203643445U (en) | Quick farmland soil moisture measuring instrument | |
| CN103792929A (en) | Remote measurement and control terminal device | |
| CN204241602U (en) | A kind of Electronics and Information Engineering testing agency | |
| CN105628142A (en) | Method for stabilizing measurement oil level | |
| CN203489973U (en) | Infrared sensing wakeup apparatus | |
| CN203025133U (en) | Cotton moisture tester |
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: 20140205 Termination date: 20140628 |
|
| EXPY | Termination of patent right or utility model |