CN103234686A - Pressure detection circuit and digital display pressure gauge - Google Patents
Pressure detection circuit and digital display pressure gauge Download PDFInfo
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- CN103234686A CN103234686A CN2013101010788A CN201310101078A CN103234686A CN 103234686 A CN103234686 A CN 103234686A CN 2013101010788 A CN2013101010788 A CN 2013101010788A CN 201310101078 A CN201310101078 A CN 201310101078A CN 103234686 A CN103234686 A CN 103234686A
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Abstract
The invention discloses a pressure detection circuit and a digital display pressure gauge with the same. The pressure detection circuit comprises a pressure sensor, a control chip and a display module, where the pressure sensor is used for detecting pressure signals of an environment where the pressure sensor is positioned, converting the pressure signals into electric signals and outputting the electric signals to the control chip, the control chip is used for receiving the electric signals and obtaining corresponding digital pressure values according to the electric signals, and the display module is used for receiving and displaying the digital pressure values. By the pressure detection circuit and the digital display pressure gauge, accuracy of pressure detection is improved, and the digital display pressure gauge is convenient for a user to read data.
Description
Technical field
The present invention relates to the pressure detection technical field, particularly a kind of pressure detection circuit and numeral show tensimeter.
Background technology
Along with the raising of people's living standard, also more and more higher to the requirement of electronic product.As everyone knows, in the pressure detection technical field, usually adopt mechanical pressure gauge that the pressure of environment or pressure piping is detected, because mechanical pressure gauge is by the size of pointer indication current pressure value, therefore, the precision of measuring is lower, overload and poor seismic behavior, and be not easy to the user and read data.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of pressure detection circuit, is intended to improve tonometric precision, has higher overload capacity and anti-seismic performance simultaneously.
In order to realize goal of the invention, the invention provides a kind of pressure detection circuit, described pressure detection circuit comprises pressure transducer, control chip and display module, wherein,
Pressure transducer is converted to electric signal for detection of the pressure signal of its environment of living in, and exports this electric signal to control chip;
Control chip is used for receiving described electric signal, and obtains corresponding digital pressure value according to this electric signal;
Display module is used for receiving and showing described digital pressure value.
Preferably, described pressure detection circuit also comprises the button electronic circuit, and this button electronic circuit comprises at least one button that is connected with control chip, and the setting state display module that described control chip is selected according to button shows the unit of digital pressure value.
Preferably, described button electronic circuit comprises first button and second button, an end ground connection of first button wherein, and the other end is connected with a signal receiving end of described control chip; One end ground connection of second button, the other end is connected with another signal receiving end of described control chip.
Preferably, described pressure detection circuit also comprises the pilot lamp electronic circuit, and this pilot lamp electronic circuit comprises light emitting diode and first resistance, the wherein plus earth of light emitting diode, and anode is connected with the signal output part of control chip by first resistance.
Preferably, described display module is LCDs, and described control chip is connected with LCDs, and exports the digital pressure value that obtains to LCDs, and the feed flow crystal display screen shows.
The present invention also provides a kind of numeral to show tensimeter, and this numeral shows that tensimeter comprises pressure detection circuit, and described pressure detection circuit comprises pressure transducer, control chip and display module, wherein,
Pressure transducer is converted to electric signal for detection of the pressure signal of its environment of living in, and exports this electric signal to control chip;
Control chip is used for receiving described electric signal, and obtains corresponding digital pressure value according to this electric signal;
Display module is used for receiving and showing described digital pressure value.
The present invention is converted to electric signal by pressure transducer is set with the pressure signal of its environment of living in, receives this electric signal by control chip, obtains corresponding digital pressure value according to this electric signal simultaneously, and shows this digital pressure value by display module.Show owing to the pressure that detects is passed through the form of digital pressure value, adopt the stem-winder measured pressure value with respect to prior art, can more intuitively reflect current pressure size, improved the precision of measuring, have higher overload capacity and anti-seismic performance simultaneously.In addition, under the changeable complex environment of temperature, have temperature correction ability quite accurately, can guarantee the consistance of measuring accuracy and measurement.
Description of drawings
Fig. 1 is the electrical block diagram of pressure detection circuit one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
With reference to Fig. 1, Fig. 1 is the structural representation of pressure detection circuit one embodiment of the present invention.The pressure detection circuit that present embodiment provides comprises pressure transducer 10, control chip 20 and display module 30, wherein,
During use, at first pressure detection circuit is placed test environment, export the voltage signal of current environment pressure correspondences to control chip 20 by pressure transducer 10 then, obtain the digital pressure value of current environment by this control chip 20 according to the magnitude of voltage analysis of voltage signal, and pass through display module 30 these digital pressure value of demonstration.Should be noted that in the present embodiment that digital pressure value is the concrete numerical value (as 100Pa) of current environment pressure.
The present invention is converted to electric signal by pressure transducer 10 is set with the pressure signal of its environment of living in, receives these electric signal by control chip 20, obtains corresponding digital pressure value according to this electric signal simultaneously, and shows these digital pressure value by display module 30.Because the pressure that detects being passed through the form of digital pressure value shows, adopt the stem-winder measured pressure value with respect to prior art, can more intuitively reflect current pressure size, therefore being convenient to the user more reads data, improve the precision of measuring, had higher overload capacity and anti-seismic performance simultaneously.In addition, under the changeable complex environment of temperature, have temperature correction ability quite accurately, can guarantee the consistance of measuring accuracy and measurement.
Further, above-mentioned pressure detection circuit also comprises button electronic circuit 40, and this button electronic circuit 40 comprises at least one button that is connected with control chip 20, and the setting state display module 30 that control chip is selected according to button shows the unit of digital pressure value.
The quantity and the selection mode that should be noted that button in the present embodiment can arrange according to actual needs, will be example with two buttons below, make detailed description.
In the present embodiment, above-mentioned button electronic circuit 40 comprises the first button K1 and the second button K2, the end ground connection of the first button K1 wherein, and the other end is connected with a signal receiving end of described control chip 20; The end ground connection of the second button K2, the other end is connected with another signal receiving end of described control chip 20.
Particularly, in the present embodiment, the signal receiving end of above-mentioned control chip 20 be control chip 20 I the O mouth.For example, when the pressure of measuring is big, can be by first a button K1, the numerical value unit that this moment, control chip 20 exported the digital voltage value of display module 30 to will change into KPa; When the pressure of measuring hour, then can be by second a button K2, the numerical value unit that this moment, control chip 20 exported the digital voltage value of display module 30 to will change into Pa.In the present embodiment, revise the numerical value unit of digital voltage value by button, thereby improved the sensing range of pressure detection circuit, improved the precision of measuring simultaneously, therefore be suitable for people more and use.
Further, above-mentioned pressure detection circuit also comprises pilot lamp electronic circuit 50, this pilot lamp electronic circuit 50 comprises LED 1 and first resistance R 1, the wherein plus earth of LED 1, and anode is connected with the signal output part of control chip 20 by first resistance R 1.
In the present embodiment, the signal output part of control chip 20 be control chip 20 an I the O mouth, after control chip 20 normally powers on, export a high level signal to the signal output part that is connected with first resistance R 1, this moment, electric current will be by LED 1 to ground.
Should be noted that above-mentioned display module 30 can adopt any displayable element, as LED charactron, LED display etc.In the present embodiment, display module 30 is preferably LCDs.Particularly, above-mentioned control chip is connected with LCDs, and exports the digital pressure value that obtains to LCDs, and the feed flow crystal display screen shows.
The present invention also provides a kind of numeral to show tensimeter, and this numeral shows that tensimeter comprises pressure detection circuit, and the structure of this pressure detection circuit can not repeat them here with reference to above-described embodiment.Naturally, adopted the technical scheme of above-mentioned pressure detection circuit because the numeral of present embodiment shows tensimeter, therefore should numeral show that tensimeter had all beneficial effects of above-mentioned pressure detection circuit.
Below only be the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. a pressure detection circuit is characterized in that, comprises pressure transducer, control chip and display module, wherein,
Pressure transducer is converted to electric signal for detection of the pressure signal of its environment of living in, and exports this electric signal to control chip;
Control chip is used for receiving described electric signal, and obtains corresponding digital pressure value according to this electric signal;
Display module is used for receiving and showing described digital pressure value.
2. pressure detection circuit as claimed in claim 1, it is characterized in that, described pressure detection circuit also comprises the button electronic circuit, this button electronic circuit comprises at least one button that is connected with control chip, and the setting state display module that described control chip is selected according to button shows the unit of digital pressure value.
3. pressure detection circuit as claimed in claim 2 is characterized in that, described button electronic circuit comprises first button and second button, an end ground connection of first button wherein, and the other end is connected with a signal receiving end of described control chip; One end ground connection of second button, the other end is connected with another signal receiving end of described control chip.
4. pressure detection circuit as claimed in claim 1, it is characterized in that, described pressure detection circuit also comprises the pilot lamp electronic circuit, this pilot lamp electronic circuit comprises light emitting diode and first resistance, the wherein plus earth of light emitting diode, anode is connected with the signal output part of control chip by first resistance.
5. as each described pressure detection circuit of claim 1 to 4, it is characterized in that described display module is LCDs, described control chip is connected with LCDs, and exporting the digital pressure value that obtains to LCDs, the feed flow crystal display screen shows.
6. a numeral shows tensimeter, it is characterized in that, comprises as each described pressure detection circuit in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310101078.8A CN103234686B (en) | 2013-03-26 | 2013-03-26 | Pressure detection circuit and pressure gauge with digital display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310101078.8A CN103234686B (en) | 2013-03-26 | 2013-03-26 | Pressure detection circuit and pressure gauge with digital display |
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| CN103234686A true CN103234686A (en) | 2013-08-07 |
| CN103234686B CN103234686B (en) | 2016-01-27 |
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| CN201310101078.8A Active CN103234686B (en) | 2013-03-26 | 2013-03-26 | Pressure detection circuit and pressure gauge with digital display |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712742A (en) * | 2013-12-18 | 2014-04-09 | 安徽睿联汽车传感器工程技术有限公司 | Pressure detection circuit |
| CN110857898A (en) * | 2018-08-22 | 2020-03-03 | 精量电子（深圳）有限公司 | Oil-filled pressure sensor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6161029A (en) * | 1984-09-03 | 1986-03-28 | Aisin Seiki Co Ltd | Electronic pressure gauge |
| JP2000028458A (en) * | 1998-07-13 | 2000-01-28 | Hitachi Ltd | Pressure detecting apparatus |
| CN2502277Y (en) * | 2001-04-10 | 2002-07-24 | 郑华 | Intelligent digital multimeter |
| US6609419B1 (en) * | 1999-02-11 | 2003-08-26 | Emtop Limited | Signal transmission in a tire pressure sensing system |
| CN201897519U (en) * | 2010-06-24 | 2011-07-13 | 浙江吉利汽车有限公司 | TPMS (Tire Pressure Monitor System) low-frequency trigger instrument |
| CN202216791U (en) * | 2011-08-27 | 2012-05-09 | 东莞市柯氏五金有限公司 | Tension detector |
| CN102494803A (en) * | 2011-12-02 | 2012-06-13 | 中国科学院东北地理与农业生态研究所 | Electronic digital-display speed-reading geothermometer |
| CN202433146U (en) * | 2011-12-01 | 2012-09-12 | 长安大学 | Digital cylinder pressure detector based on singlechip |
-
2013
- 2013-03-26 CN CN201310101078.8A patent/CN103234686B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6161029A (en) * | 1984-09-03 | 1986-03-28 | Aisin Seiki Co Ltd | Electronic pressure gauge |
| JP2000028458A (en) * | 1998-07-13 | 2000-01-28 | Hitachi Ltd | Pressure detecting apparatus |
| US6609419B1 (en) * | 1999-02-11 | 2003-08-26 | Emtop Limited | Signal transmission in a tire pressure sensing system |
| CN2502277Y (en) * | 2001-04-10 | 2002-07-24 | 郑华 | Intelligent digital multimeter |
| CN201897519U (en) * | 2010-06-24 | 2011-07-13 | 浙江吉利汽车有限公司 | TPMS (Tire Pressure Monitor System) low-frequency trigger instrument |
| CN202216791U (en) * | 2011-08-27 | 2012-05-09 | 东莞市柯氏五金有限公司 | Tension detector |
| CN202433146U (en) * | 2011-12-01 | 2012-09-12 | 长安大学 | Digital cylinder pressure detector based on singlechip |
| CN102494803A (en) * | 2011-12-02 | 2012-06-13 | 中国科学院东北地理与农业生态研究所 | Electronic digital-display speed-reading geothermometer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712742A (en) * | 2013-12-18 | 2014-04-09 | 安徽睿联汽车传感器工程技术有限公司 | Pressure detection circuit |
| CN103712742B (en) * | 2013-12-18 | 2015-12-02 | 安徽睿联汽车传感器工程技术有限公司 | A kind of pressure detection circuit |
| CN110857898A (en) * | 2018-08-22 | 2020-03-03 | 精量电子（深圳）有限公司 | Oil-filled pressure sensor |
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| Publication number | Publication date |
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| CN103234686B (en) | 2016-01-27 |
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Address after: 518000 North Block, 4th Floor, Building 49, Zone B, Tanglang Industrial Zone, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Province (office only) Patentee after: Shenzhen Nanfang Tyco Sensor Technology Co.,Ltd. Address before: 518000 North Block, 4th Floor, Building 49, Zone B, Tanglang Industrial Zone, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Province (office only) Patentee before: Shenzhen Souther Tiger Software Technology Co.,Ltd. |
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