CN201974269U - Pressure measuring and recording device - Google Patents
Pressure measuring and recording device Download PDFInfo
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- CN201974269U CN201974269U CN2010205443592U CN201020544359U CN201974269U CN 201974269 U CN201974269 U CN 201974269U CN 2010205443592 U CN2010205443592 U CN 2010205443592U CN 201020544359 U CN201020544359 U CN 201020544359U CN 201974269 U CN201974269 U CN 201974269U
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- data processing
- sensing module
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Abstract
The utility model provides a pressure measuring and recording device. The pressure measuring and recording device disclosed by the utility model comprises a pressure sensing module, a data conversion module and data processing equipment, wherein the data conversion module is electrically connected with the pressure sensing module, the data processing equipment is respectively and electrically connected with the pressure sensing module and the data conversion module, and electric power is supplied to the pressure sensing module and the data conversion module by the data processing equipment to further enhance the portability of the pressure measuring and recording device.
Description
Technical field
The utility model relates to pressure measurement technology, relates in particular to the device of measuring and writing down pressure.
Background technology
Current, when carrying out complete vehicle test and engine diagnostic, generally be to adopt the measurement mechanism of forming such as computing machine by A/D data acquisition instrument, pressure transducer, power supply and data processing equipment to carry out in interior pressure survey and record to the admission pressure of engine, crankcase pressure.The pressure at the measured place of pressure sensor senses also passes to the A/D data acquisition instrument with the pressure data that is generated; The A/D data acquisition instrument carries out analog to digital conversion to the pressure data that is received, and then the data after will changing are sent to data processing equipment, by it pressure data of being gathered is carried out analyzing and processing; Data acquisition instrument and pressure transducer are powered by power supply.
As fully visible, current pressure survey pen recorder needs independent power supply to come to data acquisition instrument and pressure transducer power supply, thereby makes the portable use of whole device for pressure measurement be restricted.
So how the portable performance number of adherence pressure sensor measurement and pen recorder must be thought deeply.
The utility model content
In view of this, the application provides a kind of portable pressure measuring pen recorder, it comprises pressure sensing module, the data conversion module that is electrically connected with described pressure sensing module and the data processing equipment that is electrically connected respectively with described pressure sensing module and described data conversion module, wherein, described data processing equipment is to described pressure sensing module and described data conversion module supply electric power.
Preferably, described data processing equipment is the portable computer with at least two usb data interfaces.
Preferably, described data processing equipment is powered to described pressure sensing module by one in the described usb data interface.
Preferably, described data processing equipment is powered to described data conversion module by in the described usb data interface another.
Preferably, described data conversion module is a portable oscilloscope.
Portable pressure measuring pen recorder provided by the utility model is directly given the power supply of pressure sensing module and data conversion module by data processing equipment, and be need not independently power supply, thereby promoted the portable performance of pressure survey pen recorder greatly.
Description of drawings
Fig. 1 is the structural representation of portable pressure measuring pen recorder described in the utility model;
Fig. 2 is an example of the interface that is connected with portable computer on the pressure sensing module; And
Fig. 3 is an example of the interface that is connected with portable computer on the data conversion module.
Embodiment
Further set forth the utility model below with reference to accompanying drawing.
Fig. 1 is the structural representation of portable pressure measuring pen recorder described in the utility model.As shown in the figure, portable pressure measuring pen recorder described in the utility model comprises pressure sensing module 10.Data conversion module 14 that is electrically connected with described pressure sensing module and the data processing equipment 12 that is electrically connected respectively with described pressure sensing module 10 and described data conversion module 14, wherein, described data processing equipment 12 is to described pressure sensing module 10 and described data conversion module 12 supply electric power.
In the car load pressure test, sensing module 10 is used to measure pressure to be measured, such as engine charge pressure, crankcase pressure, brake vacuum tube pressure etc.The pressure survey range of sensing module 10 can be set according to actual needs.According to present embodiment, the sensing module 10 in the pressure survey pen recorder can be replaced, and selects the suitable pressure-sensing device of range such as the size according to testing pressure.As example, pressure sensing module described in the utility model 10 is a pressure transducer.The pressure that sensing module 10 is measured is sent to data conversion module, is converted to digital signal and is monitored detected pressure signal by the pressure of data conversion module 14 with institute's sensing.In the present embodiment, data conversion module 14 is portable oscilloscope (are the oscillograph of PicoScope3323 such as model), and this portable oscilloscope has at least one interface that can be connected with the USB interface of data processing equipment 12.Pressure signal after data conversion module 14 will be changed sends to data processing equipment, is handled by data processing equipment.In the present embodiment, this data processing equipment 12 is a portable computer, and it has at least two usb 1s 21,122, wherein, usb 1 21 is connected with pressure sensing module 10 by cable link 16, and usb 1 22 is connected with data conversion module 14 by Electricity Federation connecting line 18.For better with existing portable computer compatibility, usb 1 21 on the data processing equipment 12 and 122 standard USB interface.The interface that is connected with cable link 16 on the pressure sensing module 10 can be a standard interface, also can be self-defining, Fig. 2 has provided a kind of example of self defined interface, what be positioned at reader's left-hand side among Fig. 2 when the reader watches this instructions is the data processing equipment end interface, and what be positioned at reader's right-hand side among Fig. 2 when the reader watches this instructions is the pressure sensing module end interface.Table 1 item is the explanation at self defined interface among Fig. 2.Data processing equipment 12, just portable computer is supplied electric power via cable link 16 to pressure sensing module 10 by its USB port 121, to guarantee the operate as normal of sensing module 10.Similarly, the interface that is connected with cable link 18 on the data conversion module 14 can be standard interface or self-defining interface, Fig. 3 has provided a kind of example of self defined interface, what be positioned at reader's left-hand side among Fig. 3 when the reader watches this instructions is the data processing equipment end interface, and what be positioned at reader's right-hand side among Fig. 3 when the reader watches this instructions is the data conversion module end interface, and table 2 item is the explanation of this each pin of interface.Data processing equipment 12, portable computer just, USB port 122 by it is supplied electric power via cable link 18 to data conversion module 14, guaranteeing the operate as normal of data conversion module 14, and carry out data communication by cable link 18 and data conversion module 14 via USB port 122; Particularly, according to the definition of table 2, the pin of data conversion module 14 by self defined interface 2 and 3 and data processing equipment 12 carry out data communication, receive the electric power that transmits from data processing equipment 12 by pin 1.
Table 1
| | Function | Remarks | |
| 1 | VBUS | Power supply+5V | |
| 2 | Empty | ?- | |
| 3 | Empty | ?- | |
| 4 | GND | Ground connection |
Table 2
| | Function | Remarks | |
| 1 | VBUS | Power supply+5V |
| 2 | Data- | Data- |
| 3 | Data+ | Data+ |
| 4 | GND | Ground connection |
As fully visible, use pressure survey pen recorder described in the utility model, can be by data processing equipment by USB interface directly to pressure sensing module 10 and data conversion module 14 supply electric power, thereby need not the power-supply device that provides extra.And under the situation of using portable computer and portable oscilloscope, can further strengthen the portability of pressure survey pen recorder described in the utility model.
Claims (5)
1. pressure survey pen recorder, it comprises pressure sensing module, the data conversion module that is electrically connected with described pressure sensing module and the data processing equipment that is electrically connected respectively with described pressure sensing module and described data conversion module, it is characterized in that described data processing equipment is to described pressure sensing module and described data conversion module supply electric power.
2. pressure survey pen recorder according to claim 1 is characterized in that, described data processing equipment is the portable computer with at least two usb data interfaces.
3. pressure survey pen recorder according to claim 2 is characterized in that, described data processing equipment is powered to described pressure sensing module by one in the described usb data interface.
4. according to claim 2 or 3 described pressure survey pen recorders, it is characterized in that described data processing equipment is powered to described data conversion module by in the described usb data interface another.
5. pressure survey pen recorder according to claim 4 is characterized in that, described data conversion module is a portable oscilloscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205443592U CN201974269U (en) | 2010-09-27 | 2010-09-27 | Pressure measuring and recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205443592U CN201974269U (en) | 2010-09-27 | 2010-09-27 | Pressure measuring and recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974269U true CN201974269U (en) | 2011-09-14 |
Family
ID=44579370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205443592U Expired - Fee Related CN201974269U (en) | 2010-09-27 | 2010-09-27 | Pressure measuring and recording device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486060A (en) * | 2021-12-29 | 2022-05-13 | 浙江力夫传感技术有限公司 | Load-bearing type staged automatic recording pressure sensor system |
-
2010
- 2010-09-27 CN CN2010205443592U patent/CN201974269U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486060A (en) * | 2021-12-29 | 2022-05-13 | 浙江力夫传感技术有限公司 | Load-bearing type staged automatic recording pressure sensor system |
| CN114486060B (en) * | 2021-12-29 | 2023-11-03 | 浙江力夫传感技术有限公司 | Bearing type staged automatic recording pressure sensor 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20190927 |