CN203480008U

CN203480008U - Simple gauss meter

Info

Publication number: CN203480008U
Application number: CN201320396523.3U
Authority: CN
Inventors: 翟明虎; 雷建设
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2014-03-12
Anticipated expiration: 2023-06-28

Abstract

The utility model relates to a meter for detecting the magnetic field intensity, and specifically relates to a simple gauss meter. The simple gauss meter comprises a power supply system, a voltage display device, a magnetic induction device, a voltage reference integrated circuit, and a voltage regulator, wherein the magnetic induction device, the voltage reference integrated circuit and the voltage regulator are sequentially in electrical connection, and the voltage display device is electrically connected with the magnetic induction device and the voltage reference integrated circuit, and the magnetic induction device is also electrically connected with the power supply system. The simple gauss meter provided by the utility model is simple in circuit, is low in cost (about 30 yuan), is far cheaper than a gauss meter on the market, is stable in working performance, is high in sensitivity, and can meet the demands of electronic enthusiasts.

Description

A kind of simple and easy gaussmeter

Technical field

The utility model relates to a kind of magnetic field intensity and detects meter, is specifically related to a kind of simple and easy gaussmeter.

Background technology

Gaussmeter is generally for measuring the instrument of magnetic field intensity, generally adopting hall principle, is equipped with Hall and is partially worth circuit, and amplifying circuit, AD circuit, Displaying Meter forms.

At present, the price of the gaussmeter of selling on market is higher for general electronics amateur, though simple and easy hand-held price generally 500 yuan of left and right, and the better desk-top gaussmeter price of performance is in the dry units of number or units up to ten thousand.

Summary of the invention

The utility model aims to provide the simple and easy gaussmeter that a kind of circuit is very simple, cost of manufacture is low.

Simple and easy gaussmeter described in the utility model, comprise voltage display device and the magnetic-inductive device, voltage reference integrated circuit and the voltage regulator that are electrically connected to successively, voltage reference integrated circuit is wherein electrically connected to voltage display device, and magnetic-inductive device is electrically connected to respectively voltage display device and electric power system.

Preferably, simple and easy gaussmeter described in the utility model, described magnetic-inductive device is Hall element.

Or preferably, simple and easy gaussmeter described in the utility model, described voltage display device is Gauss's digital voltmeter.

More preferably, simple and easy gaussmeter described in the utility model, described electric power system is comprised of the working power being electrically connected to successively, switch and three terminal regulator, and three terminal regulator wherein is also electrically connected to magnetic-inductive device.

Simple and easy gaussmeter described in the utility model, circuit is simple, with low cost only 30 yuan of left and right, compare with the price of gaussmeter on market and want cheap many, stable work in work, highly sensitive, cost greatly about, and can meet electrophile and use.

Accompanying drawing explanation

Fig. 1 is the fundamental diagram of the simple and easy gaussmeter in embodiment 1

1-Hall element; 2-Gauss digital voltmeter; 3-voltage reference integrated circuit; 4-voltage regulator; 5-working power; 6-switch; 7-three terminal regulator;

Embodiment

Embodiment 1

A kind of simple and easy gaussmeter, comprise Gauss's digital voltmeter 2 and the Hall element 1 being electrically connected to successively, voltage reference integrated circuit 3 and voltage regulator 4, also comprise the working power 5 being electrically connected to successively, switch 6 and three terminal regulator 7, three terminal regulator 7 is wherein electrically connected to Hall element 1, described Gauss's digital voltmeter 2 is electrically connected to Hall element 1 and voltage reference integrated circuit 3 respectively, described Hall element 1 is magnetic-inductive device, Gauss's digital voltmeter 2 is magnetic field intensity display device, working power 5, switch 6 and three terminal regulator are 7 electric power systems, for Hall element 1 and voltage reference integrated circuit 3 provide electric power.

Principle of work: as shown in Figure 1, the signal that Hall element 1 detects magnetic induction density directly accesses one end of digital voltmeter 2, voltage 5V when three terminal regulator 7 voltage stabilizing outputs, be that Hall element 1 is while being operated in 5V voltage, what when not sensing magnetic field intensity, one Gauss's end digital voltmeter 2 of Hall element 1 output connect is 2.5V voltage, (in its connecting circuit, when not sensing magnetic field intensity, its operating voltage is 5V to the character forming due to Hall element 1 internal amplifier, export 2.5V voltage, if working power 5 is 4V output 2V, be half of operating voltage all the time), another termination voltage reference integrated circuit of Gauss's digital voltmeter 2 is also exported 2.5V voltage under the cooperation of voltage regulator 4, Gauss is because digital voltmeter 2 two ends are all 2.5V, therefore digital voltmeter 2 shows 0V.

When detecting, the probe plane of Hall element 1 senses magnetic field intensity, forward sense is when hall element output voltage raises if, the numerical value of Gauss's digital voltmeter 2 increases, and magnetic field intensity is stronger, the voltage of Hall element 1 output is higher, be up to 5V, Gauss's digital voltmeter 2 is shown as 2.5V, negative sense is responded to Hall element 1 output voltage reduction if, Gauss's digital voltmeter 2 is shown as negative (negative sign is set before voltage table), the same magnetic field intensity that shows, the voltage of stronger Hall element 1 output of magnetic field intensity is lower, minimum is 0V, be be shown as-2.5V of Gauss's digital voltmeter 2, certainly, if negative sense induction, as long as be exactly forward sense 180 ° of the working face of probe reversions, be set to-2.5～2.5V of the range of Gauss's digital voltmeter 2 during making, Gauss's value of magnitude of voltage and corresponding magnetic induction density is set simultaneously.

Claims

1. a simple and easy gaussmeter, it is characterized in that comprising electric power system, voltage display device and the magnetic-inductive device, voltage reference integrated circuit (3) and the voltage regulator (4) that are electrically connected to successively, voltage display device is wherein electrically connected to magnetic-inductive device and voltage reference integrated circuit (3) respectively, and magnetic-inductive device is also electrically connected with electric power system.

2. simple and easy gaussmeter according to claim 1, is characterized in that described magnetic-inductive device is Hall element (1).

3. simple and easy gaussmeter according to claim 1, is characterized in that described voltage display device is Gauss's digital voltmeter (2).

4. simple and easy gaussmeter according to claim 1, it is characterized in that described electric power system is comprised of the working power being electrically connected to successively (5), switch (6) and three terminal regulator (7), three terminal regulator wherein (7) is also electrically connected to magnetic-inductive device.