CN1851391A - Iron-thickness measuring instrument - Google Patents
Iron-thickness measuring instrument Download PDFInfo
- Publication number
- CN1851391A CN1851391A CN 200610051714 CN200610051714A CN1851391A CN 1851391 A CN1851391 A CN 1851391A CN 200610051714 CN200610051714 CN 200610051714 CN 200610051714 A CN200610051714 A CN 200610051714A CN 1851391 A CN1851391 A CN 1851391A
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- China
- Prior art keywords
- iron core
- gauge outfit
- hall element
- open
- sensor
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Abstract
The invention ironware thickness meter that includes sensor and testing and display circuit. The sensor adopts U shaped semi-open iron core, and one arm has magnet or coil and the other arm has hall element. The two ends plate of the iron core is used as measuring sensing surface. The testing and display circuit is formed by amplification circuit and gauge outfit. The output of hall element is connected to the input end of the amplification circuit. The gauge outfit is connected to the output end of amplification circuit. The thickness influences the magnetic field strength on hall element that could display on gauge outfit. The invention has the advantage of high accuracy and simple structure.
Description
Technical field
The present invention relates to the electronic device that object thickness is measured, especially for the thicknessmeter of iron-thickness measuring.
Background technology
At present, to the thickness measure of iron plate, ironwork, be to measure with measurers such as slide calliper rule, milscales.Because present method need be used two faces of testee, and can not measure on a surface, when measuring the material thickness of some finished products, need to do section and measure, use inconvenience.
Summary of the invention
The object of the invention is to provide a kind of surveying instrument that article construction just can be measured its material thickness that do not destroy, and uses with convenient.
The solution of the present invention is: iron-thickness measuring instrument, comprise sensor and detect display circuit, sensor adopts " U " shape semi-open-type iron core, be embedded with magnet or coiling on one arm of iron core, be embedded Hall element on another arm, two end faces of " U " shape semi-open-type iron core detect display circuit and are made up of amplifying circuit and gauge outfit as measuring sensitive surface, Hall component output is connected with the input end of amplifying circuit, is connected with gauge outfit on the output terminal of amplifying circuit.
The shell of sensor is provided with radome, and a face of radome opens wide, and two end faces of semi-open-type iron core are positioned on this open surface.
Advantage of the present invention is: owing to be embedded with magnet or coiling on the arm of the iron core of sensor, be embedded Hall element on another arm, the measurement sensitive surface of sensor is placed on the object under test surface, the ferrous material of object has served as the effect of magnetic conductor, magnetic field intensity on its thickness effect Hall element, the output voltage of Hall element are measured and monitored the growth of standing timber with institute and are expected that thickness is relevant, show on the gauge outfit by being amplified in, on gauge outfit, engrave corresponding scale in advance, promptly can be used for measuring the thickness of ironware.This device has measures accurate, advantage of simple structure.
Description of drawings
The invention will be further described with example with reference to the accompanying drawings below.
Fig. 1 is the sensor construction synoptic diagram.
Fig. 2 is circuit theory diagrams of the present invention.
Mark among the figure: 1 radome, 2 iron cores, 3 magnet, 4 Hall elements, 5 fixed covers, 6 lead-in wires.
Embodiment
Referring to Fig. 1, the sensor of embodiment adopts " U " shape semi-open-type iron core 2, is embedded with magnet 3 on the arm of iron core 2, and magnet 3 adopts the strong magnetic magnet steel of neodymium iron boron, be embedded Hall element 4 on another arm, two end faces of " U " shape semi-open-type iron core are as measuring sensitive surface.
Also can be on an arm of iron core 2 coiling, energized is to produce magnetic field.
In order to prevent extraneous electromagnetic interference (EMI), the shell of sensor is provided with radome 1, and radome 1 adopts ferrous material to make, and a face of radome 1 opens wide, and two end faces of iron core 2 are positioned on this open surface, as measurement face.
It is the linear Hall integrated circuit of UGN3503 that Hall element 4 adopts model.
Referring to Fig. 2, detecting display circuit is made up of amplifying circuit and gauge outfit, amplifying circuit adopts operational amplifier IC1, and peripheral cell R1, R2, R3, R4 constitute anti-phase input amplifying circuit, the output terminal of Hall element 4 is connected with the input end of amplifying circuit, be connected with gauge outfit G on the output terminal of amplifying circuit, wherein R5 is the current-limiting resistance of gauge outfit.
Integrated voltage stabilizing IC2, filter capacitor C1, C2 form stabilized voltage supply, and K is a power switch.
During work, the measurement sensitive surface of sensor is placed on the object under test surface, and the ferrous material of object has served as the effect of magnetic conductor, because magnet 2 is strong magnetic magnet steel, measured material thickness is thick, and the magnetic line of force of conducting is many, magnetic field intensity on the Hall element 4 is strong, the output voltage height; Otherwise, the measured material thin thickness, because the magnetic saturation of material, the magnetic line of force that passes through is few, a little less than the magnetic field intensity on the Hall element 4, output voltage is low.
By the amplification of amplifying circuit, show corresponding numerical value on the gauge outfit, on gauge outfit, engrave corresponding scale in advance, promptly can be used for measuring the thickness of ironware.
Claims (2)
1. iron-thickness measuring instrument, comprise sensor and detect display circuit, it is characterized in that: sensor adopts " U " shape semi-open-type iron core, be embedded with magnet or coiling on one arm of iron core, be embedded Hall element on another arm, two end faces of " U " shape semi-open-type iron core detect display circuit and are made up of amplifying circuit and gauge outfit as measuring sensitive surface, Hall component output is connected with the input end of amplifying circuit, is connected with gauge outfit on the output terminal of amplifying circuit.
2. iron-thickness measuring instrument as claimed in claim 1 is characterized in that: the shell of sensor is provided with radome, and a face of radome opens wide, and two end faces of semi-open-type iron core are positioned on this open surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610051714 CN1851391A (en) | 2006-05-30 | 2006-05-30 | Iron-thickness measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610051714 CN1851391A (en) | 2006-05-30 | 2006-05-30 | Iron-thickness measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1851391A true CN1851391A (en) | 2006-10-25 |
Family
ID=37132879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610051714 Pending CN1851391A (en) | 2006-05-30 | 2006-05-30 | Iron-thickness measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1851391A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897040A (en) * | 2015-06-17 | 2015-09-09 | 苏州福德电子科技有限公司 | Automobile paint thickness measuring apparatus and method |
| CN104894524A (en) * | 2015-06-23 | 2015-09-09 | 京东方科技集团股份有限公司 | Surface treatment equipment |
| CN105180791A (en) * | 2014-06-20 | 2015-12-23 | 韩国原子力研究院 | DEVICE AND METHOD FOR DETECTING sparse pulse BY UTLIZING vortex finder |
| CN106255606A (en) * | 2014-05-02 | 2016-12-21 | 米其林企业总公司 | For assessing the system of tire state |
| CN106887364A (en) * | 2017-03-06 | 2017-06-23 | 四川大能科技有限公司 | A kind of electromagnetic relay with adhesive effect detection function |
-
2006
- 2006-05-30 CN CN 200610051714 patent/CN1851391A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106255606A (en) * | 2014-05-02 | 2016-12-21 | 米其林企业总公司 | For assessing the system of tire state |
| US10222299B2 (en) | 2014-05-02 | 2019-03-05 | Compagnie Generale Des Etablissements Michelin | System for evaluating the condition of a tire |
| CN105180791A (en) * | 2014-06-20 | 2015-12-23 | 韩国原子力研究院 | DEVICE AND METHOD FOR DETECTING sparse pulse BY UTLIZING vortex finder |
| CN105180791B (en) * | 2014-06-20 | 2018-01-23 | 韩国原子力研究院 | A kind of devices and methods therefor that Sparse Pulse detection is carried out using vortex finder |
| CN104897040A (en) * | 2015-06-17 | 2015-09-09 | 苏州福德电子科技有限公司 | Automobile paint thickness measuring apparatus and method |
| CN104894524A (en) * | 2015-06-23 | 2015-09-09 | 京东方科技集团股份有限公司 | Surface treatment equipment |
| CN106887364A (en) * | 2017-03-06 | 2017-06-23 | 四川大能科技有限公司 | A kind of electromagnetic relay with adhesive effect detection function |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |