CN206583849U - Electromagnetic nondestructive instrument based on Hall element - Google Patents
Electromagnetic nondestructive instrument based on Hall element Download PDFInfo
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- CN206583849U CN206583849U CN201720090664.0U CN201720090664U CN206583849U CN 206583849 U CN206583849 U CN 206583849U CN 201720090664 U CN201720090664 U CN 201720090664U CN 206583849 U CN206583849 U CN 206583849U
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- hall element
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Abstract
A kind of electromagnetic nondestructive instrument based on Hall element.The species of domestic Non-Destructive Testing equipment still has larger developing space in terms of the Requirements of Nondestructive Testing of more renewals is met.A kind of electromagnetic nondestructive instrument based on Hall element, its composition includes：Cabinet, described cabinet（6）Outside connection respectively has display（1）, control keyboard（2）, mouse（3）, Hall element（8）And magnet coil（9）, pass through wire on panel on rear side of described cabinet（10）External connection magnet coil external connection interface（13）, DCPS digitally controlled power source external connection interface（12）, Hall element external connection interface（11）, USB interface（14）And instantaneous speech power（15）, there is on described case front panel ammeter（4）, DCPS digitally controlled power source panel（5）And switch（7）.The present utility model application is related to nondestructive inspection field, is specifically for use in the electromagnetic nondestructive instrument based on Hall element.
Description
Technical field：
The utility model is related to nondestructive inspection field, more particularly to a kind of electromagnetic nondestructive instrument based on Hall element.
Background technology：
Current most domestic Non-Destructive Testing equipment equipment are for the conventional non-destructive testing technology application of satisfaction（Particularly five
It is big conventional, i.e. ultrasound examination, magnetic powder inspection, EDDY CURRENT, eddy current inspection, x-ray inspection）The need for, but with the modern times
In the case of changing the development built and will being integrated with many aspects with international community after entrance WTO, domestic Non-Destructive Testing equipment
Species still have larger developing space in terms of the Requirements of Nondestructive Testing of more renewals is met, particularly adapt to novel lossless inspection
Survey technology application equipment, such as Non-Destructive Testing under water, the Non-Destructive Testing of underground utilities and infrared imaging, laser hologram,
Industry CT etc..
The content of the invention：
The purpose of this utility model is to provide a kind of electromagnetic nondestructive instrument based on Hall element.
Above-mentioned purpose is realized by following technical scheme：
A kind of electromagnetic nondestructive instrument based on Hall element, its composition includes：Join respectively outside cabinet, described cabinet
It is connected on rear side of display, control keyboard, mouse, Hall element and magnet coil, described cabinet and passes through wire external connection on panel
Magnet coil external connection interface, DCPS digitally controlled power source external connection interface, Hall element external connection interface, USB interface and instantaneous speech power, it is described
Case front panel on have ammeter, DCPS digitally controlled power source panel and switch.
The described electromagnetic nondestructive instrument based on Hall element, described cabinet inside is provided with PC control system electricity
Road, detecting system circuit, DCPS digitally controlled power source circuit and analog signal processing circuit system, described detecting system circuit include active
Rate amplifying unit, instrument amplifying unit, Signal Pretreatment unit, tracking filter unit, phase sensitive detection unit and Zero-cross comparator list
Member.
The described electromagnetic nondestructive instrument based on Hall element, described analog signal processing system is with 89C52 monolithics
Machine is core, and peripheral circuit seat is occurred by 8279 administrative units of data storage 6264, keyboard and display, 8253 signals
Constituted with control unit, 7135 module converting units, current control unit and applied clock generating unit, signal generator is used
XR2206。
The beneficial effects of the utility model：
1. electromagnetic nondestructive instrument of the present utility model, its operation principle is：Sent by PC system to DCPS digitally controlled power source
Control instruction, make DCPS digitally controlled power source to magnet coil send 0 ~ 2A electric current, coil magnetization, then PC system to PLC send control
System instruction, control relay commutation, magnet coil is reversely demagnetized, and the situation of change in magnetic field is detected by Hall element, transmission
To A/D module, and then send PLC and PC system to.
Electromagnetic nondestructive instrument of the present utility model, is, based on the relational design between coercivity and phosphorus content, to work as electromagnetism
Coil electricity, is tested steel and iron parts by after excitatory, extracts the magnetic flux in magnetic circuit using Hall element, the signal of acquisition passes through processing
Circuit, PC system are carried out after data processing, directly display the carburized (case) depth or hardness of tested steel and iron parts, and by PC
Upper and lower limit parameter is set to be sorted and detected to carburized (case) depth or hardness to material in system.
Electromagnetic nondestructive instrument of the present utility model, its detecting system is main by power amplifier, instrument amplifier.Signal
The elementary cells such as pretreatment, tracking filter, phase-sensitive detector and zero-crossing comparator are constituted, and its major function is defeated to sensor
The signal gone out, which is amplified and exports direct current signal, gives PC system, carries out the further analysis and processing of signal.
Electromagnetic nondestructive instrument of the present utility model, influence of the signal frequency to Detection results is very big, because signal frequency
It is unstable great difficulty to be brought to the processing of signal to follow-up circuit, or even electromagnetic field detection is difficult to, so,
It must take a series of effective measures to eliminate the influence of environmental factor such as temperature etc. during design circuit, so as to ensure signal frequency
Rate is invariable in detection process, it is clear that in the circuit design of signal analysis and processing, the design of signal generating circuit part
It is one of link of most critical, because signal generating circuit is the signal source of whole detecting system, whether its signal frequency is steady
It is fixed that the work to whole detecting system is played into very crucial effect.
Brief description of the drawings：
Accompanying drawing 1 is structural representation of the present utility model（Face）.
Accompanying drawing 2 is structural representation of the present utility model（Backsight）.
Accompanying drawing 3 is PC control system circuit figure of the present utility model.
Accompanying drawing 4 is analog signal processing system circuit diagram of the present utility model.
Accompanying drawing 5 is signal generating unit circuit diagram of the present utility model.
Accompanying drawing 6 is Wave form generator circuit figure of the present utility model.
In figure：1-display；2-control keyboard；3-mouse；4-ammeter；5-DCPS digitally controlled power source；6-machine
Case；7-switch；8-Hall element；9-magnet coil；10-wire；11-Hall element external connection interface；12-number
Control power supply external connection interface；13-magnet coil external connection interface；14-USB interface；15-instantaneous speech power.
Embodiment：
Embodiment 1：
A kind of electromagnetic nondestructive instrument based on Hall element, its composition includes：Cabinet, the described outside of cabinet 6 is respectively
Connection has on display 1, control keyboard 2, mouse 3, Hall element 8 and magnet coil 9, described cabinet rear side panel by leading
The external connection magnet coil external connection interface 13 of line 10, DCPS digitally controlled power source external connection interface 12, Hall element external connection interface 11, the and of usb 14
There is ammeter 4, DCPS digitally controlled power source panel 5 and switch 7 on instantaneous speech power 15, described case front panel.
Embodiment 2：
The electromagnetic nondestructive instrument based on Hall element according to embodiment 1, described cabinet inside is provided with PC
Machine control system circuit, detecting system circuit, DCPS digitally controlled power source circuit and analog signal processing circuit system, described detecting system
Circuit includes power amplification unit, instrument amplifying unit, Signal Pretreatment unit, tracking filter unit, phase sensitive detection unit
With Zero-cross comparator unit.
Embodiment 3：
The electromagnetic nondestructive instrument based on Hall element according to embodiment 2, described analog signal processing system
Using 89C52 single-chip microcomputers as core, peripheral circuit by data storage 6264, keyboard and display 8279 administrative units, 8253
Signal occurs to constitute with control unit, 7135 module converting units, current control unit and applied clock generating unit, signal hair
Raw device uses XR2206.
Claims (3)
1. a kind of electromagnetic nondestructive instrument based on Hall element, its composition includes：Cabinet, it is characterized in that：Outside described cabinet
Portion couples respectively display, control keyboard, mouse, Hall element and magnet coil, passes through on rear side of described cabinet on panel
Wire external connection magnet coil external connection interface, DCPS digitally controlled power source external connection interface, Hall element external connection interface, USB interface and voice output
There is ammeter, DCPS digitally controlled power source panel and switch on device, described case front panel.
2. the electromagnetic nondestructive instrument according to claim 1 based on Hall element, it is characterized in that：Described cabinet inside
PC control system circuit, detecting system circuit, DCPS digitally controlled power source circuit and analog signal processing circuit system are installed, it is described
Detecting system circuit includes power amplification unit, instrument amplifying unit, Signal Pretreatment unit, tracking filter unit, phase sensitivity
Detection unit and Zero-cross comparator unit.
3. the electromagnetic nondestructive instrument according to claim 2 based on Hall element, it is characterized in that：Described analog signal
Processing system is using 89C52 single-chip microcomputers as core, and peripheral circuit is single by 8279 management of data storage 6264, keyboard and display
Member, 8253 signals occur and control unit, 7135 module converting units, current control unit and applied clock generating unit group
Into signal generator uses XR2206.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090664.0U CN206583849U (en) | 2017-01-24 | 2017-01-24 | Electromagnetic nondestructive instrument based on Hall element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090664.0U CN206583849U (en) | 2017-01-24 | 2017-01-24 | Electromagnetic nondestructive instrument based on Hall element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206583849U true CN206583849U (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720090664.0U Expired - Fee Related CN206583849U (en) | 2017-01-24 | 2017-01-24 | Electromagnetic nondestructive instrument based on Hall element |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112882584A (en) * | 2021-02-05 | 2021-06-01 | 兰州大学 | Computer input device |
-
2017
- 2017-01-24 CN CN201720090664.0U patent/CN206583849U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112882584A (en) * | 2021-02-05 | 2021-06-01 | 兰州大学 | Computer input device |
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|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171024 Termination date: 20200124 |