CN201974267U - Pressure measuring instrument - Google Patents
Pressure measuring instrument Download PDFInfo
- Publication number
- CN201974267U CN201974267U CN2011200698814U CN201120069881U CN201974267U CN 201974267 U CN201974267 U CN 201974267U CN 2011200698814 U CN2011200698814 U CN 2011200698814U CN 201120069881 U CN201120069881 U CN 201120069881U CN 201974267 U CN201974267 U CN 201974267U
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- Prior art keywords
- pressure
- pointer
- dial plate
- measuring device
- controller
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Abstract
The utility model discloses a pressure measuring instrument which comprises a dial plate (1), an indicator (2) and an elastic element, wherein one end of the indicator (2) is articulated with the dial plate (1), and the elastic element drives the indicator (2) to rotate on the dial plate (1); the pressure measuring instrument also comprises a magnetic element (3) and a magnetic resistance sensor (4), wherein the magnetic element (3) is arranged on the indictor (2), and the magnetic resistance sensor (4) is positioned in the magnetic field of the magnetic element (3); an output end of the magnetic resistance sensor (4) is connected with a controller (5); an output end of the controller (5) is connected with a displayer (6); the magnetic resistance sensor (4) transmits a detected pressure signal to the controller (5); and the controller (5) converts the pressure signal into a digital signal and transmits the digital signal to the displayer (6). Therefore, the pressure measuring instrument has the function of indicator display, can convert the detected signal into the digital signal for transmission and control, and increases the service performance.
Description
Technical field
The utility model relates to instrument and meter manufacturing technology field, particularly a kind of pressure-measuring device.
Background technology
Along with China's development of economic construction, various pressure-measuring devices are applied to the every field of productive life more and more widely.
Typical pressure-measuring instrument comprises mechanical compression measuring instrument and electronic pressure measuring instrument.
The mechanical compression measuring instrument comprises dial plate, pointer and elastic sensing element, and produces the elastic deformation gaging pressure by elastic sensing element along with the variation of pressure.Typical elastic sensing element is bourdon tube (Bourdon tube), diaphragm, bellows and corrugated tube etc.Flexible member produces elastic deformation under the pressure medium effect, gear drive by mechanical compression measuring instrument inside amplifies, the mechanical compression measuring instrument will demonstrate on dial plate with respect to atmospheric relative value (or high or low), and the force value of measured place is shown by pointer.
The electronic pressure measuring instrument comprises pressure transducer, the pressure of measured object acts on the pressure transducer, make pressure transducer send correspondent voltage signal or current signal, after the electric signal that pressure transducer passes out amplifies through the AD operational amplifier, handle by single-chip microcomputer again, then transfer to and show on the LCD or issue PC and show via serial protocol.
But above-mentioned mechanical compression measuring instrument can only show by the dial plate pointer, can not realize that numeral shows, the PC that can not be transferred to far-end goes up and shows and monitoring.And digital pressure-measuring device does not possess dial plate pointer Presentation Function, and sense organ is relatively poor instinctively to make it, not enough hommization.In order to realize that the mechanical compression measuring instrument has the teletransmission function, many at present by bourdon tube drive potentiometer, and change by variable-resistance resistance, thereby the mode that changes the size of output pressure realize, but the transmission stability of this kind scheme and reliability are relatively poor.
Therefore, how to make pressure-measuring device can either have the pointer Presentation Function, can realize that again long-distance transmissions and numeral show, improve the usability of pressure-measuring device, just become the problem that those skilled in the art need solve.
The utility model content
The purpose of this utility model provides a kind of pressure-measuring device, and it had both had the pointer Presentation Function, can realize that again long-distance transmissions and numeral show to have usability preferably.
For solving the problems of the technologies described above, the utility model provides a kind of pressure-measuring device, comprises that dial plate, an end are articulated in the pointer of described dial plate, and drive the flexible member that described pointer rotates on described dial plate; Also comprise magnetic element that is installed on the described pointer and the magnetoresistive transducer that is positioned at described magnetic element magnetic field, the output terminal of described magnetoresistive transducer is connected with controller, and the output terminal of described controller is connected with display; Described magnetoresistive transducer transfers to controller with detected pressure signal, and described controller is converted to digital signal with described pressure signal, and with described digital data transmission to described display.
Preferably, described magnetic element is installed on the side of described pointer towards described dial plate.
Preferably, the magnetic bowl is installed on the described pointer, described magnetic element is installed on described pointer by described magnetic bowl.
Preferably, described magnetoresistive transducer is installed on the side of described magnetic bowl towards described dial plate.
Preferably, described dial plate is equipped with the surface of described pointer for circular, and described magnetic element is installed on the center of circle of described dial plate.
Preferably, described controller and described display form an integration module.
Preferably, described integration module is a PC.
Preferably, described flexible member is a Bourdon tube.
A kind of pressure-measuring device provided by the utility model comprises that dial plate, an end are articulated in the pointer of described dial plate, and drive the flexible member that described pointer rotates on described dial plate; Also comprise magnetic element that is installed on the described pointer and the magnetoresistive transducer that is positioned at described magnetic element magnetic field, the output terminal of described magnetoresistive transducer is connected with controller, and the output terminal of described controller is connected with display; Described magnetoresistive transducer transfers to controller with detected pressure signal, and described controller is converted to digital signal with described pressure signal, and with described digital data transmission to described display.
When the pressure of detected element is measured, the pressure of detected element causes the distortion of flexible member, thereby drive pointer forms certain angle on dial plate rotation, magnetic element on the pointer together rotates with pointer, because magnetic element is in the magnetic field of magnetoresistive transducer, the variation of magnetic element displacement can cause the variation of magnetic resistance, magnetoresistive transducer detects the variation of magnetic resistance, thereby detect corresponding pressure signal, and this pressure signal transferred to controller, controller is through calculating and conversion, the pressure signal of input is converted to digital data transmission to display, thereby the numeral that is implemented on the display shows that apparently, this numeral result displayed is corresponding with force value.Like this, this pressure-measuring device had both had the function that pointer shows, by detected conversion of signals being become digital data transmission and control, had improved the usability of pressure-measuring device.
In a kind of embodiment, the magnetic bowl is installed on the pointer provided by the utility model, magnetic element is installed on described pointer by described magnetic bowl, so that improve the installation reliability of magnetic element on pointer, simplifies the mounting process process of magnetic element simultaneously.
In another kind of embodiment, flexible member provided by the utility model is a Bourdon tube; Because Bourdon tube is the conventional elastic sensing element that uses in this area, performance is comparatively reliable, and cost is lower, thereby has reduced the production and the use cost of pressure-measuring device.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of pressure-measuring device provided by the utility model;
Fig. 2 is the testing process figure of pressure-measuring device shown in Figure 1.
Embodiment
Core of the present utility model provides a kind of pressure-measuring device, and it had both had the pointer Presentation Function, can realize that again long-distance transmissions and numeral show to have usability preferably.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of embodiment of pressure-measuring device provided by the utility model; Fig. 2 is the testing process figure of pressure-measuring device shown in Figure 1.
In a kind of embodiment, pressure-measuring device provided by the utility model is used to measure the pressure of detected material, and this pressure detecting instrument comprises dial plate 1, pointer 2, flexible member, magnetic element 3 and magnetoresistive transducer 4; Wherein, one end of pointer 2 is hinged on the dial plate 1, flexible member can drive pointer 2 and rotate on described dial plate 1, concrete, when detected material acts on pressure-measuring device, it serves as to rotate initial point to rotate with its pin joint with dial plate 1 that thereby flexible member distortion drives pointer 2, thereby realizes pointer 2 demonstrations of pressure detecting instrument.Magnetic element 3 is installed on the pointer 2, and magnetoresistive transducer 4 is positioned at the magnetic field of magnetic element 3, and the output terminal of magnetoresistive transducer 4 is connected with controller 5, and the output terminal of controller 5 is connected with display 6; Magnetoresistive transducer 4 transfers to controller 5 with detected pressure signal, and controller 5 is converted to digital signal with pressure signal, and with digital data transmission to display 6, thereby the numeral that realizes pressure detecting instrument shows.
Above-mentioned magnetic element 3 can be installed on the side of pointer 2 towards dial plate 1, and like this, pointer 2 is in the outside of flexible member, and the installation of flexible member can not influence the rotation of pointer 2, and makes pressure detecting instrument more attractive in appearance.Apparently, magnetic element 3 also is not limited to and is installed on the side of pointer 2 towards dial plate 1, and it also can be installed on other positions, for example is installed on the side of pointer 2 away from dial plate 1.
When the pressure of detected element is measured, the pressure of detected element causes the distortion of flexible member, thereby drive pointer 2 forms certain angle on dial plate 1 rotation, magnetic element 3 on the pointer 2 together rotates with pointer 2, because magnetic element 3 is in the magnetic field of magnetoresistive transducer 4, the variation of magnetic element 3 displacements can cause the variation of magnetic resistance, magnetoresistive transducer 4 detects the variation of magnetic resistance, thereby detect corresponding pressure signal, and this pressure signal transferred to controller 5, controller 5 is through calculating and conversion, the pressure signal of input is converted to digital data transmission to display 6, thereby the numeral that is implemented on the display 6 shows that apparently, this numeral result displayed is corresponding with force value.Like this, this pressure-measuring device had both had the function that pointer 2 shows, by detected conversion of signals being become digital data transmission and control, had improved the usability of pressure-measuring device.
On the pointer 2 magnetic bowl 7 can be installed, magnetic element 3 is installed on pointer 2 by magnetic bowl 7; So that improve the installation reliability of magnetic element 3 on pointer 2, simplify the mounting process process of magnetic element 3 simultaneously.Apparently, magnetic element 3 also is not limited to by magnetic bowl 7 and is installed on the pointer 2, and it also can be directly installed on the appropriate location of pointer 2.
The surface of stating pointer 2 that is equipped with of the dial plate 1 of pressure-measuring device is can be circular, also is round dial 1, and magnetic element 3 is installed on the center of circle of this dial plate 1, so that the pressure distribution of pressure-measuring device is more even, guarantees the pressure survey effect.Magnetic element 3 also is not limited to the center of circle that is installed in dial plate 1, as long as the magnetic field of magnetic element 3 can cover magnetoresistive transducer 4.
The integration module that is formed by controller 5 and display 6 can be PC, also can be the conventional equipment that uses in this area.
Above-mentioned flexible member can be Bourdon tube, because Bourdon tube is the conventional elastic sensing element that uses in this area, performance is comparatively reliable, and cost is lower, thereby has reduced the production and the use cost of pressure-measuring device.Flexible member also is not limited to Bourdon tube, also can in this area conventional use other can produce the original paper of elastic deformation.
More than a kind of pressure-measuring device provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. a pressure-measuring device comprises that dial plate (1), an end are articulated in the pointer (2) of described dial plate (1), and drives described pointer (2) is gone up rotation at described dial plate (1) flexible member; It is characterized in that, also comprise the magnetic element (3) that is installed on the described pointer (2) and be positioned at the magnetoresistive transducer (4) in described magnetic element (3) magnetic field, the output terminal of described magnetoresistive transducer (4) is connected with controller (5), and the output terminal of described controller (5) is connected with display (6); Described magnetoresistive transducer (4) transfers to controller (5) with detected pressure signal, and described controller (5) is converted to digital signal with described pressure signal, and with described digital data transmission to described display (6).
2. pressure-measuring device according to claim 1 is characterized in that, described magnetic element (3) is installed on the side of described pointer (2) towards described dial plate (1).
3. pressure-measuring device according to claim 2 is characterized in that, magnetic bowl (7) is installed on the described pointer (2), and described magnetic element (3) is installed on described pointer (2) by described magnetic bowl (7).
4. pressure-measuring device according to claim 3 is characterized in that, described magnetoresistive transducer (4) is installed on the side of described magnetic bowl (7) towards described dial plate (1).
5. according to each described pressure-measuring device of claim 1 to 4, it is characterized in that described dial plate (1) is equipped with the surface of described pointer (2) for circular, described magnetic element (3) is installed on the center of circle of described dial plate (1).
6. according to each described pressure-measuring device of claim 1 to 4, it is characterized in that described controller (5) forms an integration module with described display (6).
7. pressure-measuring device according to claim 5 is characterized in that, described integration module is a PC.
8. according to each described pressure-measuring device of claim 1 to 4, it is characterized in that described flexible member is a Bourdon tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200698814U CN201974267U (en) | 2011-03-16 | 2011-03-16 | Pressure measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200698814U CN201974267U (en) | 2011-03-16 | 2011-03-16 | Pressure measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974267U true CN201974267U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200698814U Expired - Fee Related CN201974267U (en) | 2011-03-16 | 2011-03-16 | Pressure measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507072A (en) * | 2011-11-23 | 2012-06-20 | 西安传思电子科技有限公司 | Intelligent spring tube pressure transmitter |
| CN103712727A (en) * | 2013-12-31 | 2014-04-09 | 东台沪峰机械设备有限公司 | Mechanical digital display pressure gage |
-
2011
- 2011-03-16 CN CN2011200698814U patent/CN201974267U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507072A (en) * | 2011-11-23 | 2012-06-20 | 西安传思电子科技有限公司 | Intelligent spring tube pressure transmitter |
| CN102507072B (en) * | 2011-11-23 | 2013-07-24 | 西安传思电子科技有限公司 | Intelligent spring tube pressure transmitter |
| CN103712727A (en) * | 2013-12-31 | 2014-04-09 | 东台沪峰机械设备有限公司 | Mechanical digital display pressure gage |
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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: 20110914 Termination date: 20170316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |