CN2452032Y

CN2452032Y - Magnetic flux distribution signal collecting device for magnet

Info

Publication number: CN2452032Y
Application number: CN 00256228
Authority: CN
Inventors: 孟宪洪; 方东升
Original assignee: SHANDONG METALLURGICAL SCIENCE RESEARCH INSTITUTE
Current assignee: SHANDONG METALLURGICAL SCIENCE RESEARCH INSTITUTE
Priority date: 2000-11-03
Filing date: 2000-11-03
Publication date: 2001-10-03
Anticipated expiration: 2010-11-03

Abstract

The utility model relates to a magnetic flux distribution signal collecting device for magnets. The utility model comprises a probe holder, a magnet support, and a power device. A hall sensor probe (1) is fixed to cause the sensor probe to be perpendicular to a magnetic field of a magnet (3) which is measured, the magnet which is measured is arranged on a device which can do the orientable movement, and the magnet which is measured is caused to do the orientable movement. The utility model has the advantages that the speed uniformity and the directivity of the relative movement of the probe (1) and the magnet (3) are better, the structure is simple, the use is convenient, the signals obtained by measure are exact, the utility model can be used to measure the magnetic flux distribution of magnetizing bodies (rings) outside a multipole (inside).

Description

The field flux distribution signal pickup assembly of magnet

The utility model belongs to signal supervisory instrument, particularly relates to the field flux distribution signal supervisory instrument of magnet.

Present domestic measurement multi-pole magnet, as the field flux distribution of measuring magnet ring etc. all adopts hand-held teslameter to move on magnet, be about to Hall element probe point-to-point measurement on magnet, because the speed consistance and the directivity that move of hand control teslameter are relatively poor, measurement result is difficult to the truth that reaction multi-pole magnet surface magnetic flux distributes, the angular deviation in the time of more can't reacting multi-pole magnet-ring body magnetic flux and be zero.

The purpose of this utility model provides a kind of multi-pole magnet field flux distribution measuring-signal harvester, it is better with speed consistance and directivity that magnet relatively moves that it has probe, simple in structure, easy to use, the signal that measurement is obtained is accurate, can be used to measure multipole outer (interior) magnetize field flux distribution of body (ring).

The purpose of this utility model realizes by the following technical solutions: adopt fixedly Hall element probe, make the magnetic field of sensor probe perpendicular to magnet to be measured, magnet to be measured is placed on the device of an orientable motion, and magnet orientation to be measured is taken exercises, as making device be the uniform speed rotation, magnet to be measured is the uniform speed rotation simultaneously.The Hall element probe can collect the magnetic flux signal of magnet, handles through analogue signal circuit and digital signal circuit, will react the report demonstration of magnet field flux distribution truth and print.

The utility model comprises probe fixed mount, magnet carrier, propulsion system.Hall probe is installed on the fixed mount by clamper, and connects analogue signal circuit and digital signal circuit with line.For the field flux distribution situation on the magnet that can gather different size size and shape, the three-dimensional adjustment should be done in the fixed position of Hall element probe, even probe with clamper about can carrying out on this fixed mount, the adjustment of all around direction, so that the need measuring position of alignment probe magnet to be measured, thereby can measure outer (interior) magnetize field flux distribution situation of body (ring).

Magnet carrier is one can carry pallet and its support member of magnet movement (comprise rotate or move), and propulsion system are selected motor for use, and base and support member thereof are connected with motor, thereby are moved by the driven by motor base.

For the influence to magnet measurement result to be measured of the magnetic conductivity of avoiding magnet carrier itself as far as possible, the liner tray under magnet to be measured should be selected the non-magnetic pallet for use.

The utility model has fundamentally changed past measurement field flux distribution situation probe movement, the sampling mode that magnet is fixing.Probe is better with the consistance and the directivity of the relative moving speed of magnet, so promptly can measure the field flux distribution situation of the outer magnetic ring body that magnetizes of different size, and the while also can measurement plane multi-pole magnet-ring body and the field flux distribution situation of watt shape magnetic ring body.Measurement result can fully be reacted the truth that the multi-pole magnet surface magnetic flux distributes, the angular deviation in the time of particularly reacting multi-pole magnet-ring body magnetic flux and be zero.It has simple in structure, easy to use, and the signal of measurement is accurate.

Below in conjunction with accompanying drawing and with it is that the utility model is described in further detail for embodiment:

Fig. 1 is a Hall effect schematic diagram of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Among the figure: the 1st, Hall element (probe), the 2nd, probe clamper, the 3rd, magnet to be measured, the 4th, magnet fixed tray, the 5th, fixing holder anchor clamps, the 6th, bearing, the 7th, motor, the 8th, coupling shaft, the 9th, bracket upright post, the 10th, rack beam, the 11st is connected and fixed part, the 12nd, casing (base), the 13rd, protection axle sleeve, the 14th, probe and the connecting line, the 15th of analyzing display device, micromatic setting.

In Fig. 1, give certain voltage E at the AB two ends of Hall plate, on plane, apply a magnetic field B perpendicular to ABCD, also just produce certain induced voltage U at C, D two ends so.The size of voltage is proportional with the magnetic field B that applies, and therefore measures the voltage at CD two ends, just can calculate the size of magnetic field intensity.

In embodiment illustrated in fig. 2, hall probe 1 usefulness probe clamper 2 is clamped, with being connected and fixed part 11 clamper 2 is fixedly mounted on certain position on the crossbeam 10 again, make probe 1 lean against magnet 3 surfaces to be measured, can measure the field flux distribution situation of magnet 3, hall probe 1 also can crosswise fixed be placed on the column 9 simultaneously, and can hall probe 1 be done up and down according to the magnet position that need are measured and adjust.

The probe fixed mount is made up of column 9 and crossbeam 10, is provided with thereon and is connected and fixed part 11, so that crossbeam 10 is fixed on the column 9, and can make crossbeam 10 do axially adjustment up and down and around axial rotation on column 9.Probe clamper 2 can part 11 be fixed on column 9 or/and on the crossbeam 10 by being connected and fixed.In order to make clamper 2 (or/and crossbeam 10) accurate positioning on column 9 and crossbeam 10, can be marked with yardstick at column 9 and crossbeam 10, on clamper 2, can be provided with micromatic setting 15.

Motor 7 and coupling shaft 8 be interlock mutually, and coupling shaft 8 is coaxial the connection with drill chuck 5.Motor 7 is as power source, and motor 7 drive coupling shafts 8 can be made orientation and at the uniform velocity rotate, and motor 7 is fixed on the base 12.

The characteristics that have vertical clamping good concentricity according to standard drill chuck three-jaw, adopt the parts of three-jaw drill point as fixed magnets 3, in order to keep the consistent performance at coupling shaft 8 and drill jig 5 centers, press the designing requirement of drill jig 5, the upper end of coupling shaft 8 is processed into drill jig 5 has same gradient, itself and drill jig 5 are tightly linked.

All drill chucks 5 all adopt the steel part of magnetic conduction to manufacture, for the influence of the magnetic conductivity of avoiding drill jig 5 as far as possible to magnet 3 measurement results to be measured, between drill chuck 5 and magnet to be measured 3, add a non-magnetic pallet 4, purpose one is to reduce the influence of 5 pairs of magnetic ring body 3 measurement results to be measured of drill chuck as far as possible, the 2nd, utilize same drill chuck 5, can measure the field flux distribution situation of the magnet 3 of different size size.The axle of certain size is processed in the bottom of magnet pallet 4, clamps, and recessed or boss with the same size of magnetic ring body to be measured can be processed into according to the size of magnet to be measured and shape in top, magnet 3 to be measured is put into wherein, and picked and placeed conveniently by drill jig 5.

Magnet 3 to be measured should the side of pendulum at the center of magnet pallet 4, because drill chuck 5 is positioned on the same center line with coupling shaft 8, this moment, hall probe 1 was vertical near magnet 3 to be measured, motor 7 drives magnet 3 orientations and at the uniform velocity rotates, after magnet 3 magnetic flux signals process analogue signal circuit that hall probe 1 is gathered and digital signal circuit are handled, the field flux distribution situation that can correctly reflect multi-pole magnet, and can be by showing and printing equipment, with result's output of magnet field flux distribution truth.

Claims

1, a kind of field flux distribution signal pickup assembly of magnet, comprise probe fixed mount, magnet carrier, propulsion system, it is characterized in that probe clamper (2) is fixedly mounted on the fixed mount, magnet carrier is pallet (4) and its support member (5,8) that can carry magnet (3) motion.

2, the field flux distribution signal pickup assembly of magnet according to claim 1 is characterized in that it being with being connected and fixed part (11) clamper (2) to be installed in crossbeam (10) or/and on the column (9)

3, the field flux distribution signal pickup assembly of magnet according to claim 1 and 2 is characterized in that crossbeam (10) can be done up and down to adjust and around axial rotation on column (9).

4, the field flux distribution signal pickup assembly of magnet according to claim 1 and 2 is characterized in that being marked with yardstick at column (9) and crossbeam (10).

5, according to claim 1 in the field flux distribution signal pickup assembly of the described magnet of arbitrary claim, it is characterized in that the liner tray (4) under the magnet to be measured (3) should be selected the non-magnetic pallet for use.

6, the field flux distribution signal pickup assembly of magnet according to claim 1 is characterized in that coupling shaft (8) is coaxial the connection with drill chuck (5).

7, according to the field flux distribution signal pickup assembly of claim 1 or 6 described magnets, it is characterized in that motor (7) is fixed on the base (12), support member (8) is connected with motor (7).

8, the field flux distribution signal pickup assembly of magnet according to claim 1 and 2 is characterized in that can being provided with micromatic setting (15) on clamper (2).