CN2249908Y

CN2249908Y - Quick-action magnetic flux detector

Info

Publication number: CN2249908Y
Application number: CN 95224054
Authority: CN
Inventors: 季松泉; 张晋荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-20
Filing date: 1995-10-20
Publication date: 1997-03-19
Anticipated expiration: 2005-10-20

Abstract

The utility model relates to a magnetic flux quick detecting device, belonging to the technical field of magnetic flux measurement. The utility model is characterized in that a magnetomotive switch can be used for substituting for an integrating zero clearing button, a detecting coil and the magnetomotive switch are arranged on an operating table, the detecting coil is a uniformly and symmetrically distributed plane coil, and the magnetomotive switch is arranged on the central line of the plane coil which is the detecting coil. When detected samples can orderly and fast glide through the magnetomotive switch and the detecting coil, a digital fluxmeter can automatically clear and record the number of magnetic flux of the detected samples. The utility model has the advantages of zero clearing without manual work, continuous running of zero clearing and detecting, no need of exchange of detecting coil, high speed of detecting, high precision and low cost and the utility model is more suitable for scale detecting of the magnetic flux of products for magnetic material factories.

Description

A kind of magnetic flux device for fast detecting

The utility model relates to the magnetic-flux measurement technical field.

At present, digital fluxmeter is used for the magnetic property of testing product by magnetic material factory and the wide model of user thereof.This digital fluxmeter mainly is made up of integrator and numeral demonstration two parts.As shown in Figure 1, this numeral magnetic-flux measurement device must be according to the external test coil of the size of each sample (3) when the test sample magnetic flux, and external test coil (3) sectional dimension necessary and sample (2) is roughly the same.During test, must divide three parts to carry out: the first step is opened the power switch (5) of digital fluxmeter (1), and integrator begins integration; Second step is by the artificial zero clearing of the integrator nulling button (4) on the digital fluxmeter (1) (otherwise because of integrator zero point drift meeting influence measuring accuracy greatly); The 3rd step, hand-held sample (2) made its end face slip over the end face of test coil (3) fast, and digital fluxmeter (1) is noted the magnetic flux of sample (2).With this digital fluxmeter specimen magnetic flux, obviously exist two to lack limit.The one, all must exist new zero point drift to the artificial zero clearing of integrator again in the interval blink between artificial zero clearing of integrator and slip test simultaneously before sample of every survey, can influence measuring accuracy.The 2nd, in order to obtain high measuring accuracy, the measurement requirement test coil preferably and sample have roughly the same sectional dimension.Will prepare corresponding test coil in order to test the sample that varies in size, and bring new trouble for virtually the scale detection of product, also increase cost simultaneously.

The utility model purpose is for the each measurement manually zero clearing earlier that overcomes existing fluxmeter existence, must changes test coil and the not high scarce limit of measuring accuracy according to test different size sample, manually zero clearing of a kind of each measurement is provided, the sample of 1-100mm (or wider) is measured need do not changed the high novel magnetic flux device for fast detecting of test coil and measuring accuracy.

Embodiment of the present utility model is as follows:

The magnetic flux device for fast detecting that the utility model provides mainly is made up of digital fluxmeter (1), test coil (3), the moving switch (13) of magnetic, tie cable (6) and operator's console (7).Go up placement test coil (3) and the moving switch (13) of magnetic at operator's console (7); test coil (3) is the planar coil that distributes symmetrically; this planar coil is to adopt to amass into the printed-wiring board (PWB) that technology is made by the photograph photoetching on a large scale; integration zero clearing device on the former digital fluxmeter and integration nulling button (4) are passed into disuse; be to settle the moving switch (13) of magnetic on the center line of test coil (3) at the printed-wiring board (PWB) center line; magnetic moves switch (13) and test coil (3) links by tie cable (6) and digital fluxmeter (1), promptly constitutes magnetic flux device for fast detecting provided by the utility model.

Describe the utility model in detail below in conjunction with accompanying drawing:

Accompanying drawing 1 is the digital fluxmeter structural representation of prior art;

The magnetic flux device for fast detecting structural representation that accompanying drawing 2 provides for the utility model;

Accompanying drawing 3 is a square planar loop construction synoptic diagram;

The structural representation of the embodiment that accompanying drawing 4 provides for the utility model;

Accompanying drawing 5 is a rectangle plane loop construction synoptic diagram;

Accompanying drawing 6 is a circular flat loop construction synoptic diagram.

Wherein: (1)-digital fluxmeter (2)-sample (3)-test coil

(4)-integrator nulling button (5)-power switch (6)-tie cable

(7)-operator's console (8)-gib screw (9)-sample receiving trough

(10)-driving motor (11)-belt wheel (12)-travelling belt

(13)-the moving switch of magnetic

By accompanying drawing 2 as can be known, the utility model is mainly by digital fluxmeter (1), operating desk (7), tie cable (6), the moving switch (13) of magnetic, test coil (3) form. Settled test coil (3) at operating desk (7) With the moving switch (13) of magnetic, test coil (3) is to adopt to amass on a large scale the seal that technology is made by the photograph photoetching The brush wiring board, it has good reproducibility and reliability. The original integration zero clearing dress of numeral fluxmeter (1) Put with integration nulling button (4) and pass into disuse, and replace with the moving switch (13) of magnetic. Test coil (3), magnetic move Switch (13) links to each other with digital fluxmeter (1) after all drawing in operating desk (7) inside by tie cable (6), Test coil (3) is fixed on the operating desk (7) with screw (8).

Described test coil (3) can be the square coil that distributes symmetrically shown in the accompanying drawing 3, can Being the rectangle plane coil that distributes symmetrically shown in the accompanying drawing 5, can also be evenly right shown in the accompanying drawing 6 The helical form circular flat coil that claims distribution.

When using the Quick-action magnetic flux detector test sample that the utility model provides:

At first open the power switch (5) of digital fluxmeter (1), behind the preheating number minute, namely enter test mode, Integrator begins integration immediately after power switch is opened, be at random zero point. With sample (2) certainly From left to right on operating desk (7) successively fast slide cross the moving switch (13) of magnetic and planar coil (3), digital magnetic flux Meter (1) is recorded the magnetic flux number of sample (2), and test is namely accused complete. Treat that next sample (2) is sliding When crossing the moving switch (13) of magnetic, magnetic moves switch (13) and starts working under the magneticaction of new sample (2), It makes the integrator moment automatic clear of digital fluxmeter (1) and begins integration; Sample (2) slips over flat Planar coil (3), the maximum magnetic flux number of sample (2) also keeps under digital fluxmeter (1) immediate record. The magnetic flux number that keeps is until just be cleared during the moving switch (13) of next sample effect magnetic. From surveying Runin is begun to finish to test need only about 1 minute time.

Its advantage of magnetic flux device for fast detecting that the utility model provides is: each not manually zero clearing of measurement, zero clearing and test are continuous, thereby improved measuring accuracy, and must not change test coil when testing different samples, so the magnetic flux device for fast detecting that the utility model provides is more suitable for detecting in the scale of magnetic material factory product magnetic flux, speed is fast, the precision height, and cost is low.

The embodiment that the utility model provides is as follows:

Accompanying drawing 4 is the continuous measuring device according to the measurement magnetic product magnetic flux of the utility model structural design.Numeral fluxmeter (1) is passed into disuse its integrator nulling button as described above, and replace with the moving switch (13) of the magnetic on the operator's console (7), numeral fluxmeter (1) links to each other with operator's console with tie cable (6), operator's console (7) is also by above-mentioned the same, settle moving switch (13) of magnetic and plane test coil (3) above, operator's console (7) is close to the following placement of travelling belt (12) and fixing dead, in travelling belt (12) motion process, operator's console (7) can not and then move, travelling belt (12) can only be gone up at operator's console (7) and slide, when total system turns round under driving motor (10) drives, drive by belt wheel (11), travelling belt (12) drives sample (2) rapid movement from left to right, and speed is 1 meter per second.When sample (2) slipped over operator's console (7) successively fast, under the acting in conjunction of moving switch (13) of magnetic and test coil (3), digital fluxmeter (1) recorded the magnetic flux of sample respectively.The sample of having surveyed slides along sample receiving trough (9).

Claims

1; a kind of magnetic flux device for fast detecting is by digital fluxmeter (1); operator's console (7); test coil compositions such as (3); it is characterized in that: the integration zero clearing device of digital fluxmeter (1) is the moving switch (13) of magnetic; the moving switch (13) of test coil (3) and magnetic is placed on the operator's console (7); test coil (3) is the planar coil that distributes symmetrically; this planar coil is to adopt to amass into the printed-wiring board (PWB) that technology is made by the photograph photoetching on a large scale; it is on the center line of test coil (3) that magnetic moves the center line that switch (13) is placed on printed-wiring board (PWB), and magnetic moves switch (13) and test coil (3) is connected with digital fluxmeter (1) by tie cable (6).

2. by the described magnetic flux device for fast detecting of claim 1, it is characterized in that square, the rectangle plane coil of described test coil (3) for distributing symmetrically, perhaps is the spiral fashion circular flat coil that distributes symmetrically.