CN204988592U - Portable suo li moves survey appearance - Google Patents
Portable suo li moves survey appearance Download PDFInfo
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- CN204988592U CN204988592U CN201520733490.6U CN201520733490U CN204988592U CN 204988592 U CN204988592 U CN 204988592U CN 201520733490 U CN201520733490 U CN 201520733490U CN 204988592 U CN204988592 U CN 204988592U
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- microcontroller
- suo
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- touch
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Abstract
The utility model relates to a portable suo li moves survey appearance belongs to civil engineering field, is applied to structure safety and health monitoring trade. It includes vibration sensor, signal conditioning module, adc, microcontroller, touch screen, memory, power management module, built -in lithium cell, USB interface, vibration sensor passes through signal conditioning module and is connected with adc, and adc and microcontroller are connected, touch -sensitive screen, memory, USB interface are connected with microcontroller, power management module is connected with built -in lithium cell.
Description
Technical field
The utility model relates to a kind of portable Suo Li dynamic tester, belongs to field of civil engineering, is applied to structural safety health monitoring industry.
Background technology
Traditional cable tension test method uses vibration transducer to be fixed on cable by VELCRO, sensor is connected on vibration acquisition instrument by secondary instrument, and vibration acquisition instrument is adopted and sent to notebook computer to carry out showing and calculate rope force value by USB data line the data collected.
Summary of the invention
In order to overcome above-mentioned defect, the purpose of this utility model is to provide a kind of portable Suo Li dynamic tester, by Acquisition Instrument, touch-screen and computing function being integrated in a handheld device, greatly simplify on-the-spot test process.
To achieve these goals, the utility model adopts following technical scheme:
A kind of portable Suo Li dynamic tester, its involving vibrations sensor, Signal-regulated kinase, analog to digital converter, microcontroller, touch-screen, storer, power management module, built-in lithium battery, USB interface;
Vibration transducer is connected with analog to digital converter by Signal-regulated kinase, and analog to digital converter is connected with microcontroller;
Touch-screen, storer, USB interface are connected with microcontroller;
Power management module is connected with built-in lithium battery.
Frequency spectrum and data are shown in touch-screen through analog to digital converter to microcontroller by signal condition by vibration transducer again, and store data in storer.
Microcontroller shows the rope force value and spectrogram that calculate by touch-screen;
Data are backed up by internal memory;
Systematic parameter configuration, collection, storage is carried out by touch-screen;
Microcontroller draws accurate cable tension value through Precise equation FFT computing;
The utility model realizes principle: this product is by signal acquisition circuit, Suo Li calculating, frequency spectrum display, data are stored and are integrated in a portable digital reader simultaneously.First VELCRO is used to be fixed on by vibration transducer on cable to be measured, connecting sensor cable and readout instrument, open readout instrument, be set to absolute value and trigger startup acquisition mode, then use forced oscillation method hammering cable, excitation cable vibration, now cable vibration exports vibration signal by sensor, and triggering collection instrument starts data sampling, Acquisition Instrument gathers 1024 data points altogether according to the sampling rate configured, and carries out FFT computing and draw static spectral figure.The vibration frequencies such as the single order of cable, second order, three rank are shown, general use single order vibration frequency, by classical Suo Li computing formula in spectrogram:
calculate rope force value, wherein l is that rope is long, and m is unit length Suo Chong, f
nit is the n-th rank model frequency.And effective rope force value and spectrogram are saved to device memory, can export on computer and check.
The beneficial effects of the utility model:
The collection of the utility model patent integrated data, signal condition, data calculating, figure display, data are stored as one, greatly facilitate on-the-spot test, improve testing efficiency and decrease the test duration.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is connection layout in kind of the present utility model;
In Fig. 2: 11-cable; 12-vibration transducer; 13-portable Suo Li dynamic tester of the present utility model.
Embodiment
Be described in detail below in conjunction with accompanying drawing 1,2 pairs of the utility model:
A kind of portable Suo Li dynamic tester, its involving vibrations sensor 1, Signal-regulated kinase 2, analog to digital converter 3, microcontroller 4, touch-screen 5, storer 6, power management module 7, built-in lithium battery 8, USB interface 9;
Vibration transducer 1 is connected with analog to digital converter 3 by Signal-regulated kinase 2, and analog to digital converter 3 is connected with microcontroller 4;
Touch-screen 5, storer 6, USB interface 9 are connected with microcontroller 4;
Power management module 7 is connected with built-in lithium battery 8.
This utility model patent, in implementation process, first obtains the major parameter of measured cable: unit length Suo Chong and rope long, and to input in portable Suo Li dynamic tester, configure cable numbering.After installing sensor, sensor signal lines is connected to Acquisition Instrument end, the mode of operation now arranging portable Suo Li dynamic tester is absolute value triggering mode, gets out data sampling.Then ram hammer excitation cable is used, sensor sensing signal is in Acquisition Instrument, signal condition is passed through in Acquisition Instrument, analog to digital converter is to microcontroller, and microcontroller carries out Precise equation FFT computing and draws the cable vibration such as single order, second order frequency, and is shown the spectrogram of 1024 by touch-screen, now by selecting exponent number, directly draw rope force value, finally click preservation, data can be stored in internal memory and back up.
Claims (1)
1. a portable Suo Li dynamic tester, it is characterized in that: its involving vibrations sensor (1), Signal-regulated kinase (2), analog to digital converter (3), microcontroller (4), touch-screen (5), storer (6), power management module (7), built-in lithium battery (8), USB interface (9);
Vibration transducer (1) is connected with analog to digital converter (3) by Signal-regulated kinase (2), and analog to digital converter (3) is connected with microcontroller (4);
Touch-screen (5), storer (6), USB interface (9) are connected with microcontroller (4);
Power management module (7) is connected with built-in lithium battery (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733490.6U CN204988592U (en) | 2015-09-22 | 2015-09-22 | Portable suo li moves survey appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520733490.6U CN204988592U (en) | 2015-09-22 | 2015-09-22 | Portable suo li moves survey appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204988592U true CN204988592U (en) | 2016-01-20 |
Family
ID=55122950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520733490.6U Active CN204988592U (en) | 2015-09-22 | 2015-09-22 | Portable suo li moves survey appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204988592U (en) |
-
2015
- 2015-09-22 CN CN201520733490.6U patent/CN204988592U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |