CN203501979U - Multipath grating ruler signal acquiring and measuring system - Google Patents
Multipath grating ruler signal acquiring and measuring system Download PDFInfo
- Publication number
- CN203501979U CN203501979U CN201320467092.5U CN201320467092U CN203501979U CN 203501979 U CN203501979 U CN 203501979U CN 201320467092 U CN201320467092 U CN 201320467092U CN 203501979 U CN203501979 U CN 203501979U
- Authority
- CN
- China
- Prior art keywords
- grating
- signal
- acquiring
- measurement device
- acquisition
- 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
Images
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model discloses a multipath grating ruler signal acquiring and measuring system. The system comprises grating rulers, a multipath grating signal acquiring and measuring device, and a computer data acquiring and processing system, wherein the grating rulers are connected with aviation sockets of the multipath grating signal acquiring and measuring device by grating ruler signal lines; the multipath grating signal acquiring and measuring device is connected with the computer data acquiring and processing system by a signal output connecting line and a high-speed connecting serial port. According to the multipath grating ruler signal acquiring and measuring system disclosed by the utility model, the grating rulers of different resolutions and ranges can be connected by the settings in the computer data acquiring and processing system; an ARM high-speed processing module is adopted; the system is controlled by a computer, and has a measuring precision of up to 0.1 [mu]m, being simple in operation; a plurality of acquiring and measuring devices are connected in series by serial ports, and configured to have respective case numbers, thereby achieving the connection between the computer and every acquiring and measuring device; and each acquiring and measuring device is provided with an aviation socket, so that aviation plugs of the grating ruler data lines can be conveniently plugged into the acquiring and measuring devices.
Description
Technical field
The utility model relates to a kind of displacement data automatic collecting analysis system, especially a kind of multi-channel Grating chi signals collecting measuring system that applies to geomechanical model test flexible transmission type built-in miniature multi-point displacement data.
Background technology
At present, domestic and international application is existing a variety of in the multi-point displacement method of testing at Practical Project scene, but it is still rare to apply to the miniature multi-point displacement test system of geomechanical model test.
The successful example of domestic contrast is the multi-point displacement test system of the differential transformer type of the Li Zhongkui of Tsing-Hua University professor institute utility model, and is applied in the cavity group geomechanical model test of degree power station, small stream Lip river.Adopt electric resistance sensor to measure displacement, measuring accuracy is compared with Gao Keda 0.001mm, but electric resistance sensor is subject to the impact of external electromagnetic field and reduces precision.Can realize automatic data collection, but displacement data automatic collecting analysis system picture is unfriendly, function is simple.
The flexible transmission type built-in miniature multi-point displacement test system for model test (application number is 200810138975.5) of the Zhu Weishen of Shandong University professor utility model, adopts high-precision grating scale as displacement measuring instrument, and precision can reach below 1 μ m; Multi-point displacement is counted flexible transmission type, and measuring point displacement turns round in energy real-time testing model test; There is the advantages such as data acquisition process convenience.But there is following shortcoming:
1. signal translating system, data acquisition hardware system (data acquisition cabinet) are separated, and the connection of data signal line is inconvenient, is unfavorable for the accurate measurement of displacement of model experiment measurement result;
2. signal acquisition process adopts PLC to carry out, and reaction velocity is slow, and when grating scale moves easy frame losing when very fast, displacement measurement is inaccurate, has a strong impact on test findings;
3. data collection and analysis software system interface is simpler, only has data zero clearing, data acquisition demonstration and simple history curve function, and the sampling period is non-adjustable.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, and the multi-channel Grating chi signals collecting measuring system of a kind of easy to operate, powerful, high precision and high-speed response is provided.
For achieving the above object, the utility model adopts following technical proposals:
A kind of multi-channel Grating chi signals collecting measuring system, comprise grating scale, multi-channel Grating signal acquisition and measurement device and computer data acquiring disposal system, a plurality of grating scales are connected with the aviation socket of multi-channel Grating signal acquisition and measurement device by grating scale signal wire, and multi-channel Grating signal acquisition and measurement device is exported connecting line, at a high speed connected serial ports and be connected with computer data acquiring disposal system by signal.
Outside multilayer isolation gauze and the metal bladder of adopting of signal wire of described grating scale, the end of described signal wire is provided with aviation plug.
The panel of described multi-channel Grating signal acquisition and measurement device is provided with a plurality of aviation sockets, and the aviation plug of grating scale signal wire end inserts aviation socket, and grating scale and multi-channel Grating signal acquisition and measurement device are coupled together.
Described multi-channel Grating signal acquisition and measurement device comprises:
Cutoff frequency reaches the high-speed photoelectric coupler of 20MHz, and the signal of grating scale is done to high-speed grating signals collecting;
Phase inverter, the grating signal that high-speed photoelectric coupler is collected is done further integer, with the grating signal that guarantees to enter before the high-speed data module of ARM chip, is clean, complete;
ARM chip, by through phase inverter to the grating signal of signals collecting Shape correction adopt high speed orthogonal coding acquisition module QEI in ARM chip to the signal after filtering, after integer count, sentence to 4 process of frequency multiplication;
Synchronous serial interface SSI, is sent to main ARM chip by the data after every a slice ARM chip acquisition process;
Main ARM chip, by RS485 interface and the communication of computer data acquiring disposal system.
Described computer data acquiring disposal system is that MOXO multi-serial-port card is expanded out a plurality of High Speed Serials, can connect respectively a plurality of vasculums.
Computer data acquiring disposal system of the present utility model, can arrange and the displacement signal gathering is carried out to data demonstration, Drawing of Curve, segment data preservation, printing etc. the parameter of a plurality of grating data acquisition casees.
During the utility model test, the aviation plug of the data line of multi-channel Grating chi is inserted in the jack of Acquisition Instrument according to the corresponding relation of Acquisition Instrument numbering, by data line, connect harvester and computing machine, open computer data acquiring disposal system and can carry out displacement measurement.This system can be achieved as follows function:
1. can gather 8 tunnels, 16 Huo32 road, road grating scale signal datas;
2. advance real time record filing of the data of pair collection; ,
3. archive data can EXCEL form derive again in online query;
4. the history curve and the time-history curves that comprise archive data;
5. there is data query function;
6. by user management, user's operating right is controlled, prevented maloperation.
7. can carry out data demonstration, Drawing of Curve, segment data preservation, printing etc. to the signal of a plurality of grating data acquisition casees.
The utility model is compared with similar products at home and abroad has following significant technical advantage:
(1) can connect the grating scale of different resolution and range, in computer data acquiring disposal system, arrange, only need the chain plug receptacle of the data cable plug update platform of grating scale; Realized the unified combination of grating scale signal translating system, data acquisition, analytic system, can realize Real-Time Monitoring, preservation and the analysis of displacement, and there is data derivation, inquiry and authority function is set.
(2) adopt ARM high speed processing module, sample frequency, up to 20MHz, is applicable to Instantaneous Situation displacement measurement and static displacement and measures; System adopts computer control, and measuring accuracy can reach 0.1 μ m, friendly interface, directly perceived, easy and simple to handle.
(3) every collection measurement mechanism can be arranged to the different sampling channels such as 8 passages, 16 passages and 32 passages, meets different requirement of experiment.
(4) many collection measurement mechanisms can be connected by serial ports, by the machine case number (CN) of every collection measurement mechanism is set, realize the connection of a computing machine to many every collection measurement mechanism;
(5) every collection measurement mechanism is provided with aviation plug, and the aviation plug of grating scale data line can insert collection measurement mechanism easily.The supporting flexible miniature multipoint displacement meter of this cover system can be widely used in geomechanics layer during similar model test.
Accompanying drawing explanation
Fig. 1 is the utility model theory diagram;
Wherein 1, grating scale, 2, multi-channel Grating signal acquisition and measurement device, 3, aviation socket, 4, high-speed photoelectric coupler, 5, phase inverter, 6, ARM chip, 7, synchronous serial interface SSI, 8, main ARM chip, 9, RS485 interface, 10, at a high speed connect serial ports, 12, computer data acquiring disposal system, 13, grating scale signal wire, 14, signal output connecting line.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, a kind of multi-channel Grating chi signals collecting measuring system, comprises grating scale 1, multi-channel Grating signal acquisition and measurement device 2 and computer data acquiring disposal system 12; A plurality of grating scale 1(can connect 32 tunnels at most) by grating scale signal wire 13, be connected with the aviation socket 3 of multi-channel Grating signal acquisition and measurement device 2; Multi-channel Grating signal acquisition and measurement device 2 is exported connecting line 14, is at a high speed connected serial ports 10 and be connected with computer data acquiring disposal system 12 by signal;
Outside multilayer isolation gauze and the metal bladder of adopting of signal wire of grating scale 1, signal wire end adopts aviation plug.
On multi-channel Grating signal acquisition and measurement device 2 panels, be designed with a plurality of aviation sockets 3, the aviation plug of grating scale 1 signal wire end inserts aviation socket 3, and grating scale 1 and multi-channel Grating signal acquisition and measurement device 2 are coupled together;
High-speed photoelectric coupler 4 cutoff frequencys are up to 20MHz, the signal of grating scale 1 can be carried out to high-speed grating signals collecting, then by 5 pairs of grating signals that collect of phase inverter, carry out further integer, with the grating signal that guarantees to enter before the high-speed data module of ARM chip 6, be clean, complete, thereby greatly improved reliability and the anti-interference of signals collecting.
ARM chip 6 by the grating signal of processing through signals collecting shaping unit adopt high speed orthogonal coding acquisition module QEI in ARM chip to the signal after filtering, after integer count, sentence to 4 process of frequency multiplication.
The function of synchronous serial interface SSI7 is that every a slice ARM chip 6 is sent to main ARM chip 8 the data after acquisition process by synchronous serial interface SSI7.
Main ARM chip 8 carries out communication by RS485 interface 9 and computer data acquiring disposal system 12.Wherein in computer data acquiring disposal system 12, utilizing the MOXO multi-serial-port card that produces in Taiwan to expand out a plurality of high speeds connects serial ports 10(1 and turns 4,1 and turn 8,1 and turn 16 etc.) can connect respectively a plurality of vasculums.
Computer data acquiring disposal system 12 can arrange and the displacement signal gathering is carried out to data demonstration, Drawing of Curve, segment data preservation, printing etc. the parameter of a plurality of grating data acquisition casees 2.
During the utility model test, the aviation plug of the data line of the multi-channel Grating chis such as multichannel is inserted in the jack of Acquisition Instrument according to the corresponding relation of Acquisition Instrument numbering, by data line, connect harvester and computer data acquiring disposal system, open computer data acquiring disposal system and can carry out displacement measurement.This system can be achieved as follows function:
1. can gather 8 tunnels, 16 Huo32 road, road grating scale signal datas;
2. advance real time record filing of the data of pair collection; ,
3. archive data can EXCEL form derive again in online query;
4. the history curve and the time-history curves that comprise archive data;
5. there is data query function;
6. by user management, user's operating right is controlled, prevented maloperation.
7. can carry out data demonstration, Drawing of Curve, segment data preservation, printing etc. to the signal of a plurality of grating data acquisition casees.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (5)
1. a multi-channel Grating chi signals collecting measuring system, it is characterized in that, comprise grating scale, multi-channel Grating signal acquisition and measurement device and computer data acquiring disposal system, a plurality of grating scales are connected with the aviation socket of multi-channel Grating signal acquisition and measurement device by grating scale signal wire, and multi-channel Grating signal acquisition and measurement device is exported connecting line, at a high speed connected serial ports and be connected with computer data acquiring disposal system by signal.
2. the system as claimed in claim 1, is characterized in that, outside multilayer isolation gauze and the metal bladder of adopting of signal wire of described grating scale, and the end of described signal wire is provided with aviation plug.
3. system as claimed in claim 2, it is characterized in that, the panel of described multi-channel Grating signal acquisition and measurement device is provided with a plurality of aviation sockets, and the aviation plug of grating scale signal wire end inserts aviation socket, and grating scale and multi-channel Grating signal acquisition and measurement device are coupled together.
4. the system as claimed in claim 1, is characterized in that, described multi-channel Grating signal acquisition and measurement device comprises:
Cutoff frequency reaches the high-speed photoelectric coupler of 20MHz, and the signal of grating scale is done to high-speed grating signals collecting;
Phase inverter, the grating signal that high-speed photoelectric coupler is collected is done further integer, with the grating signal that guarantees to enter before the high-speed data module of ARM chip, is clean, complete;
ARM chip, by through phase inverter to the grating signal of signals collecting Shape correction adopt high speed orthogonal coding acquisition module QEI in ARM chip to the signal after filtering, after integer count, sentence to 4 process of frequency multiplication;
Synchronous serial interface SSI, is sent to main ARM chip by the data after every a slice ARM chip acquisition process;
Main ARM chip, by RS485 interface and the communication of computer data acquiring disposal system.
5. the system as claimed in claim 1, is characterized in that, described computer data acquiring disposal system is that MOXO multi-serial-port card is expanded out a plurality of High Speed Serials, can connect respectively a plurality of vasculums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467092.5U CN203501979U (en) | 2013-08-01 | 2013-08-01 | Multipath grating ruler signal acquiring and measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467092.5U CN203501979U (en) | 2013-08-01 | 2013-08-01 | Multipath grating ruler signal acquiring and measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203501979U true CN203501979U (en) | 2014-03-26 |
Family
ID=50332953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320467092.5U Expired - Fee Related CN203501979U (en) | 2013-08-01 | 2013-08-01 | Multipath grating ruler signal acquiring and measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203501979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363907A (en) * | 2013-08-01 | 2013-10-23 | 山东大学 | Multi-path grating ruler signal acquiring and measuring system |
-
2013
- 2013-08-01 CN CN201320467092.5U patent/CN203501979U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363907A (en) * | 2013-08-01 | 2013-10-23 | 山东大学 | Multi-path grating ruler signal acquiring and measuring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104483011A (en) | Rotary machinery multichannel vibration signal on-line detection and analysis system and method | |
| CN103257280A (en) | Capacitive equipment dielectric loss monitoring device based on electric field sensor and monitoring method | |
| CN103363907A (en) | Multi-path grating ruler signal acquiring and measuring system | |
| CN205193212U (en) | Insulating detecting system of DC cable | |
| CN103605062A (en) | Partial discharge signal trigger phase synchronous clock source | |
| CN106645942B (en) | Low-cost high-precision embedded signal acquisition and analysis system and method | |
| CN109116194A (en) | High-speed rail transforming plant cable shelf depreciation positioning device based on the asynchronous triggering of optical fiber | |
| CN203455835U (en) | Bus triggering backplate applied to PXI (PCI extension for instrumentation) test platform | |
| CN108508399A (en) | Voltage transient test method based on the emulation of electronic type voltage transformer transmittance process | |
| CN105841867A (en) | Measuring method for tooth groove torque of permanent magnet motor | |
| CN209542698U (en) | A kind of multi-channel DC voltage and current collector of high-speed, high precision | |
| CN104408213A (en) | Portable data acquisition card | |
| CN204462246U (en) | A kind of HVDC (High Voltage Direct Current) transmission line corona loss measuring system | |
| CN203501979U (en) | Multipath grating ruler signal acquiring and measuring system | |
| CN202928609U (en) | Electric eddy current dynamometer test stand data acquisition system | |
| CN202494744U (en) | Device for detecting quality of electric energy | |
| CN202794278U (en) | High-precision handheld type digital oscilloscope | |
| CN104182551A (en) | Multi-sampling rate multi-channel synchronous data acquisition system and acquisition method | |
| CN203191708U (en) | Precise time-interval measuring instrument | |
| CN106772193A (en) | A kind of current transformer frequency characteristic measurement devices and methods therefor | |
| CN203661059U (en) | Parallel carrier wave communication tester | |
| CN203908941U (en) | Gutter oil detection pen | |
| CN203433041U (en) | An electric energy meter provided with a communication function | |
| CN201740627U (en) | Electric measurement device for dynamic balance | |
| CN204479745U (en) | For the device of noise figure test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20190801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |