CN205317723U - Harmless detection system based on GMR sensor - Google Patents
Harmless detection system based on GMR sensor Download PDFInfo
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- CN205317723U CN205317723U CN201620051936.1U CN201620051936U CN205317723U CN 205317723 U CN205317723 U CN 205317723U CN 201620051936 U CN201620051936 U CN 201620051936U CN 205317723 U CN205317723 U CN 205317723U
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Abstract
The utility model discloses a harmless detection system based on GMR sensor, its characterized in that includes: module, power amplification module, probe module, signal conditioning module take place for dsp data processing module, sine wave signal, wherein probe module includes band iron wire -core coil and GMR sensor, GMR sensor and signal conditioning module link to each other, the module takes place and is connected with dsp data processing module respectively for signal conditioning module and sine wave signal, the power amplification module is connected between sine wave signal emergence module and band iron wire -core coil, its characterized in that: based on eddy current inspection's basic principle, utilize the GMR sensor to detect the change volume in magnetic field, enlarge that it erupts simultaneously to handle and give DSP the signal that detects through signal conditioning module and carry out data processing, deuterogamy and build the nondestructive test of alternating current signal generating circuit, the realization vortex by direct frequency synthesizer of AD9850 and TDA2030A power amplification chip.
Description
Technical field
The utility model relates to instrument and sensor technical field, is specially the lossless detection system based on GMR.
Background technology
Along with the development in epoch, eddy current inspection is applied in more and more fields, such as, in the material manufacturing processedes such as steel ball, bearing, bar, it is possible to use eddy-current method is rejected those and is with defective finished product and work in-process due to problem of materials. But, in the eddy current inspection of routine, when detection probe detects defective data, it is necessary to manually to shining, impedance plane figure searches mutual defect parameters, then through calculating corresponding conclusion. Therefore, reduce the manual intervention degree of conventional eddy detection system, to realize Aulomatizeted Detect be the main problem faced in current eddy current inspection.
For detecting eddy current quickly and accurately, improve Aulomatizeted Detect degree, the utility model discloses a kind of more reliably, more effective, the safer lossless detection system based on GMR, it is proposed that taking GMR SAS022 as core, it is possible to realize the nondestructive testing to eddy current.
Practical novel content
Technology of the present utility model is dealt with problems and is: utilize GMR as the sensor of probe, it is achieved the nondestructive testing of eddy current.
In order to achieve the above object, technical solution adopted in the utility model is: based on the lossless detection system of GMR, it is characterised in that comprising: DSP data processing module, sinusoidal wave signal generating module, power amplifier module, probe module, Signal-regulated kinase; Wherein said probe module comprises band iron-core coil and GMR; GMR is connected with Signal-regulated kinase; Signal-regulated kinase is connected with DSP data processing module respectively with sinusoidal wave signal generating module; Power amplifier module is connected between sinusoidal wave signal generating module and band iron-core coil.
The described lossless detection system based on GMR, it is characterised in that: dsp chip is the treater of TMS320F2812.
The described lossless detection system based on GMR, it is characterised in that: signal conditioning circuit adopts LM358 type integrated operational amplifier circuit.
The described lossless detection system based on GMR, it is characterised in that: GMR adopts sensor SAS022 as magneto sensor.
The described lossless detection system based on GMR, it is characterised in that: sinusoidal wave signal generating circuit selects AD9850 integrated chip.
The described lossless detection system based on GMR, it is characterised in that: power magnification circuit adopts TDA2030A power amplifier chips.
The utility model is based on the ultimate principle of eddy current inspection, utilize the variable quantity in GMR detection magnetic field, by Signal-regulated kinase, the signal detected is carried out amplification process send and carry out data processing to DSP, coordinate again and build AC signal generation circuit by AD9850 Direct frequency synthesizer device and TDA2030A power magnification chip, it is achieved the nondestructive testing of eddy current.
The utility model has the advantages that: the utility model have volume height little, sensitive, the linear lag good, be convenient to plurality of advantages such as safeguarding, cost is low.
Accompanying drawing explanation
Fig. 1 is hardware block diagram of the present utility model.
Embodiment
Structure block diagram as shown in Figure 1, based on the lossless detection system of GMR, it is characterised in that comprising: DSP data processing module, sinusoidal wave signal generating module, power amplifier module, probe module, Signal-regulated kinase; Wherein said probe module comprises band iron-core coil and GMR; GMR is connected with Signal-regulated kinase; Signal-regulated kinase is connected with DSP data processing module respectively with sinusoidal wave signal generating module; Power amplifier module is connected between sinusoidal wave signal generating module and band iron-core coil; It is characterized in that: based on the ultimate principle of eddy current inspection, utilize the variable quantity in GMR detection magnetic field, by Signal-regulated kinase, the signal detected is carried out amplification process send and carry out data processing to DSP, coordinate again and build AC signal generation circuit by AD9850 Direct frequency synthesizer device and TDA2030A power magnification chip, it is achieved the nondestructive testing of eddy current.
Claims (6)
1. based on the lossless detection system of GMR, it is characterised in that comprising: DSP data processing module, sinusoidal wave signal generating module, power amplifier module, probe module, Signal-regulated kinase; Wherein said probe module comprises band iron-core coil and GMR; GMR is connected with Signal-regulated kinase; Signal-regulated kinase is connected with DSP data processing module respectively with sinusoidal wave signal generating module; Power amplifier module is connected between sinusoidal wave signal generating module and band iron-core coil.
2. the lossless detection system based on GMR according to claim 1, it is characterised in that: dsp chip is the treater of TMS320F2812.
3. the lossless detection system based on GMR according to claim 1, it is characterised in that: signal conditioning circuit adopts LM358 type integrated operational amplifier circuit.
4. the lossless detection system based on GMR according to claim 1, it is characterised in that: GMR adopts sensor SAS022 as magneto sensor.
5. the lossless detection system based on GMR according to claim 1, it is characterised in that: sinusoidal wave signal generating circuit selects AD9850 integrated chip.
6. the lossless detection system based on GMR according to claim 1, it is characterised in that: power magnification circuit adopts TDA2030A power amplifier chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051936.1U CN205317723U (en) | 2016-01-19 | 2016-01-19 | Harmless detection system based on GMR sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051936.1U CN205317723U (en) | 2016-01-19 | 2016-01-19 | Harmless detection system based on GMR sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205317723U true CN205317723U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620051936.1U Expired - Fee Related CN205317723U (en) | 2016-01-19 | 2016-01-19 | Harmless detection system based on GMR sensor |
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| CN (1) | CN205317723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596713A (en) * | 2016-11-23 | 2017-04-26 | 电子科技大学 | Nondestructive testing probe system with high signal-to-noise ratio |
-
2016
- 2016-01-19 CN CN201620051936.1U patent/CN205317723U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596713A (en) * | 2016-11-23 | 2017-04-26 | 电子科技大学 | Nondestructive testing probe system with high signal-to-noise ratio |
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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: 20160615 Termination date: 20170119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |