CN102401692A - Multichannel vibrating wire acquirer - Google Patents
Multichannel vibrating wire acquirer Download PDFInfo
- Publication number
- CN102401692A CN102401692A CN2010102846702A CN201010284670A CN102401692A CN 102401692 A CN102401692 A CN 102401692A CN 2010102846702 A CN2010102846702 A CN 2010102846702A CN 201010284670 A CN201010284670 A CN 201010284670A CN 102401692 A CN102401692 A CN 102401692A
- Authority
- CN
- China
- Prior art keywords
- module
- central control
- circuit
- control chip
- channel selecting
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a multichannel vibrating wire acquirer, which comprises a central control module. The central control module is connected with a channel selecting module, an RS485 (recommended standard 485) transmission module, a power supply module, a clock module and a storage module respectively through lines, the channel selecting module is connected with an analog front-end signal conditioning module through a line, the central control module comprises a master control chip and fast Fourier transform frequency operation circuit connected with the master control chip, the channel selecting module comprises an optronic relay which is connected with the master control chip through a line, and the analog front-end signal conditioning module comprises a second-order low-pass filter circuit which is connected with the optronic relay. The multichannel vibrating wire acquirer has the advantages that acquisition frequency ranges from 500Hz to 3500Hz, precision is 0.1Hz, resolution is 0.01Hz, measuring precision is high, interference resistance is high, operation is stable, and channels 8, 16 and 32 are selectable.
Description
Technical field
The present invention relates to a kind of hyperchannel vibratory string Acquisition Instrument.
Background technology
In the renovation of building technical field; Generally all adopt the stress model analytical calculation; Analyze according to result calculated then, and then the buildings of being transformed is constructed, and each item construction parameter carries out to guarantee improved fabric structure stable according to actual needs.Because analytical calculation is all simulated, analog parameter is in a single day inaccurate, tends to cause the construction mistake, and then in work progress, changes modification scheme, causes the waste of time and financial resources.Adopt the monitoring system of vibratory string Acquisition Instrument to the building structure reconstruction work progress at present, but existing vibratory string Acquisition Instrument exists precision generally not high, about 1Hz, number of channels waits not enough less.
Summary of the invention
The purpose of this invention is to provide a kind of hyperchannel vibratory string Acquisition Instrument, adopt the tested frequency accuracy of high precision mathematical algorithm to be increased to 0.1Hz, resolution 0.01Hz, maximum 32 passages of supporting of number of channels, the environment of very suitable on-the-spot multi-measuring point.
The objective of the invention is to realize through following technical scheme:
A kind of hyperchannel vibratory string Acquisition Instrument; Comprise central control module; Central control module is selected module, RS485 transport module, supply module, clock module and memory module through circuit difference interface channel, and wherein channel selecting module is connected with AFE(analog front end) signal condition module through circuit; Said central control module is made up of main control chip and the FFT frequency calculation circuit that is connected with main control chip; Channel selecting module comprises light coupling relay; Light coupling relay is connected with main control chip through circuit; AFE(analog front end) signal condition module comprises the second-order low-pass filter circuit, and the second-order low-pass filter circuit is connected with light coupling relay.
Beneficial effect of the present invention is: be used for the automation collection signal, front end can connect vibrating string type sensor, and the frequency collection scope can be from 500Hz-3500Hz; Precision 0.1Hz, resolution 0.01Hz, measuring accuracy is high; Antijamming capability is strong, and is stable, optional passage 8,16,32; The utility model module communication interface adopts universal standard RS232/485, and the data-interface place is provided with the lightning protection module, has guaranteed the moment overcurrent mediation that non-power lead causes; Can be used for the abominable safety monitoring engineerings of environment for use such as hydraulic structure, high slope, road, bridge, tunnel.
Description of drawings
According to accompanying drawing the present invention is done further explain below.
Fig. 1 is the structured flowchart of the described hyperchannel vibratory string of embodiment of the invention Acquisition Instrument;
Fig. 2 is the circuit theory diagrams of central control module in the described hyperchannel vibratory string of the embodiment of the invention Acquisition Instrument;
Fig. 3 is the circuit theory diagrams of channel selecting module in the described hyperchannel vibratory string of the embodiment of the invention Acquisition Instrument;
Fig. 4 is the circuit theory diagrams of RS485 transport module in the described hyperchannel vibratory string of the embodiment of the invention Acquisition Instrument;
Fig. 5 is the circuit theory diagrams of supply module in the described hyperchannel vibratory string of the embodiment of the invention Acquisition Instrument;
Fig. 6 is the circuit theory diagrams of clock module in the described hyperchannel vibratory string of the embodiment of the invention Acquisition Instrument;
Fig. 7 is the circuit theory diagrams of memory module in the described hyperchannel vibratory string of the embodiment of the invention Acquisition Instrument;
Fig. 8 is the circuit theory diagrams of AFE(analog front end) signal condition module in the described hyperchannel vibratory string of the embodiment of the invention Acquisition Instrument.
Among the figure:
1, central control module; 2, channel selecting module; 3, RS485 transport module; 4, supply module; 5, clock module; 6, memory module; 7, AFE(analog front end) signal condition module; 8, main control chip; 9, light coupling relay.
Embodiment
Shown in Fig. 1-8; The described a kind of hyperchannel vibratory string Acquisition Instrument of the embodiment of the invention; Comprise central control module 1; Central control module 1 is selected module 2, RS485 transport module 3, supply module 4, clock module 5 and memory module 6 through circuit difference interface channel, and wherein channel selecting module 2 is connected with AFE(analog front end) signal condition module 7 through circuit; Said central control module 1 is made up of main control chip 8 and the FFT frequency calculation circuit that is connected with main control chip 8; Channel selecting module 2 comprises light coupling relay 9; Light coupling relay 9 is connected with main control chip 8 through circuit; AFE(analog front end) signal condition module 7 comprises the second-order low-pass filter circuit, and the second-order low-pass filter circuit is connected with light coupling relay 9.
During concrete the use, the main control chip of central control module 1 inside is controlled and FFT spectrum analysis algorithms sensor passage selection, data command response, module clock 5 controls in real time, the file system realization of memory module 6, supply module 4; Channel selecting module 2 realizes the connection of multichannel front end simulation in each road and central control module through the decoding of light coupling relay 9; Memory module 6 is used a plurality of EEPROM, can store big in big mileage certificate, realize little file system, realize that data insert data deletion, data search; The internal circuit of AFE(analog front end) signal condition module 7 is the second-order low-pass filter circuit, and effective frequency is 50-3500Hz, and circuit function is internal resistance judgement, the Control of Voltage of driving voltage, effectively amplification, the filtering of waveform signal of string type sensor.
The present invention is used for the automation collection signal, and front end can connect vibrating string type sensor, and the frequency collection scope can be from 500Hz-3500Hz, precision 0.1Hz, and resolution 0.01Hz, measuring accuracy is high, and antijamming capability is strong, and is stable, optional passage 8,16,32; The utility model module communication interface adopts universal standard RS232/485, and the data-interface place is provided with the lightning protection module, has guaranteed the moment overcurrent mediation that non-power lead causes; Can be used for the abominable safety monitoring engineerings of environment for use such as hydraulic structure, high slope, road, bridge, tunnel.
Claims (1)
1. hyperchannel vibratory string Acquisition Instrument; Comprise central control module (1); It is characterized in that: central control module (1) is selected module (2), RS485 transport module (3), supply module (4), clock module (5) and memory module (6) through circuit difference interface channel, and wherein channel selecting module (2) is connected with AFE(analog front end) signal condition module (7) through circuit; Said central control module (1) is made up of main control chip (8) and the FFT frequency calculation circuit that is connected with main control chip (8); Channel selecting module (2) comprises light coupling relay (9); Light coupling relay (9) is connected with main control chip (8) through circuit; AFE(analog front end) signal condition module (7) comprises the second-order low-pass filter circuit, and the second-order low-pass filter circuit is connected with light coupling relay (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102846702A CN102401692A (en) | 2010-09-17 | 2010-09-17 | Multichannel vibrating wire acquirer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102846702A CN102401692A (en) | 2010-09-17 | 2010-09-17 | Multichannel vibrating wire acquirer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401692A true CN102401692A (en) | 2012-04-04 |
Family
ID=45884131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102846702A Pending CN102401692A (en) | 2010-09-17 | 2010-09-17 | Multichannel vibrating wire acquirer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401692A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154987A (en) * | 2014-07-10 | 2014-11-19 | 山东大学 | Vibration wire type sensor reader measuring meter |
| CN107919176A (en) * | 2017-11-06 | 2018-04-17 | 中广核工程有限公司 | A kind of nuclear power plant EAU systems automatic reading system and number reading method |
| CN109799509A (en) * | 2019-02-28 | 2019-05-24 | 无锡市海鹰加科海洋技术有限责任公司 | A kind of anticollision sonar system for device of diving |
-
2010
- 2010-09-17 CN CN2010102846702A patent/CN102401692A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154987A (en) * | 2014-07-10 | 2014-11-19 | 山东大学 | Vibration wire type sensor reader measuring meter |
| CN104154987B (en) * | 2014-07-10 | 2017-01-04 | 山东大学 | A kind of vibrating string type sensor plate reading |
| CN107919176A (en) * | 2017-11-06 | 2018-04-17 | 中广核工程有限公司 | A kind of nuclear power plant EAU systems automatic reading system and number reading method |
| CN109799509A (en) * | 2019-02-28 | 2019-05-24 | 无锡市海鹰加科海洋技术有限责任公司 | A kind of anticollision sonar system for device of diving |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103698366A (en) | Multifunctional digital rock-soil static cone penetration test system | |
| CN204832351U (en) | Small resistance and insulation resistance's integrated tester | |
| CN103939081B (en) | Well logging engineering parameter data Fast Acquisition System and processing method thereof | |
| CN103353607B (en) | A kind of violent earthquake preparation process based on ground sound detection method and imminent earthquake monitoring system | |
| CN202974924U (en) | Online earth resistivity monitoring system | |
| CN104167084A (en) | Engineering-risk wireless-sensing early-warning visualization system and method | |
| CN104300900A (en) | Photovoltaic plate dust detecting device | |
| CN103332207A (en) | Method and device for on-line acquisition of steel rail temperature, strain and acceleration data | |
| CN202230595U (en) | Multichannel data acquisition system used for vibrating wire transducers | |
| CN103310613A (en) | Movable ad-hoc network remote monitoring device of soil environment information | |
| CN206592248U (en) | The Portable wind-driven generator group field test of off-network type and analysis system | |
| CN204667117U (en) | A kind of based on the adaptive analog quantity detecting device of general A/D sensing range | |
| CN103941293A (en) | Dynamic electricity observing system for natural electric field | |
| CN201903397U (en) | Multichannel vibrating string collection instrument applied to safety testing of civil engineering structure | |
| CN113720880A (en) | Resistivity monitoring system and method for underground three-dimensional migration process of pollutants | |
| CN102401692A (en) | Multichannel vibrating wire acquirer | |
| CN105910840A (en) | Bridge structure safety monitoring system based on solar power supply and 4G wireless communication | |
| CN104359689A (en) | Method and device for testing brake performance of motor train units | |
| CN102818762A (en) | Oil-gas pipeline polarization potential monitoring device | |
| CN117144942A (en) | Slope engineering reinforcement state sensing protection monitoring method and system | |
| CN202153206U (en) | Polarization potential monitoring device for oil gas pipeline | |
| CN103983600A (en) | Digitalized carbon dioxide viewer for earthquake precursor monitoring | |
| CN203849277U (en) | Outdoor actual measurement apparatus for quickly and freely switching signals with limited data acquisition systems | |
| CN202501918U (en) | Hand-held helicopter vibration signal testing and analyzing device | |
| CN204287500U (en) | A kind of with remote monitoring 32 are without cable seismograph |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |