CN202216670U - Device for measuring magnetostrictive length of metal wire - Google Patents

Abstract

The utility model relates to a device for measuring magnetostrictive length of a metal wire, which comprises a metal solenoid (1), a steel supporting frame (2), a platform (3) with round holes, a cylindrical steel block (4), the metal wire (5), an optical lever (6) with a front pin and rear pin, weights (7), a supporting frame (8) for fixing a telescope, a straight scale (9), the telescope (10), a slide-wire rheostat (11), an ampere meter (12), a direct current voltage-stabilized power source (13), a switch (14) and leads (15). The device for measuring the magnetostrictive length of the metal wire is convenient to operate, and the accuracy of measurement of variation of the magnetostrictive length of the metal wire is high.

Description

A kind of device of measuring tinsel magnetostriction length

Technical field:

The utility model belongs to the tiny length field of measuring technique, relates in particular to a kind of device of suitable measurement tinsel magnetostriction length.

Technical background:

The measurement of measuring mangneto tiny length variation wiry at present has the equal thickness interference of light and the equal inclination interference of light; These two kinds of measuring operation complicacies; The environment requirement height is not promptly allowed small vibration; The material hardness that measuring element constitutes requires high and is difficult for deforming, and in order to overcome above-mentioned shortcoming and high to the measuring accuracy of tiny length, utilizing optical lever to measure magnetostrictive tiny length is a kind of device of measuring tinsel magnetostriction length.

Summary of the invention:

The utility model technical matters to be solved provides a kind of device that can accurately measure tinsel magnetostriction length; Solved tinsel the tiny length measure of the change has been taken place than complicated problems under the action of a magnetic field; And simple in structure, easy to operate, be fit to the tiny length field of measurement and use.

The technical scheme that the utility model solves the problems of the technologies described above is following: a kind of device of measuring tinsel magnetostriction length, comprise metal spiral pipe (1), steel bracing frame (2), have circular hole platform (3), column type bloom (4), tinsel (5), have before and after optical lever (6), counterweight (7), bracing frame (8), ruler (9), telescope (10), rheochord (11), reometer (12), D.C. regulated power supply (13), switch (14) and the lead (15) of rigid telescope of pin;

Described metal spiral pipe produces a certain size uniform magnetic field in its inside when its being fed a certain size electric current, its upper end is fixed on the steel bracing frame;

Described steel bracing frame is used for belonging to solenoid and the tinsel that will measure with deposit; Described platform is fixed on the steel bracing frame and is in lower end wiry, and it has circular hole can let the column type bloom freely pass through, and is placed with optical lever at its upper surface;

Described column type bloom, it is with fixing on lower end wiry and can freely passing through the circular hole on the platform;

Described tinsel; Its upper end is fixed on column type bloom on the steel bracing frame and is fixed on its lower end; Tinsel is through in the metal spiral pipe; When thereby the electric current that feeds a certain size in the metal spiral pipe produces a certain size uniform magnetic field in its inside, tinsel will receive the effect in magnetic field, and its length changes;

Described optical lever, it has plane mirror supporting frame and two forward foot in a step and a rear foot to constitute, and the forward foot in a step is placed on the platform, and the rear foot is placed on the upper surface of column type bloom;

Described counterweight is used for stretching tinsel;

The bracing frame of described rigid telescope is used for fixing telescope;

Described ruler is fixed on telescopical one side;

Described telescope is used for observing the scale that ruler is formed images in the optical lever level crossing, thereby can express the variable quantity of scale;

Described rheochord is used for electric current in the regulating circuit promptly through the electric current of metal spiral pipe, makes the magnetic field that produces certain intensity in the metal spiral pipe;

Described reometer is used for the current value in the metering circuit;

Described D.C. regulated power supply provides the electric current of steady for the metal spiral pipe;

Described switch is the operating switch of circuit;

Described lead is that plain conductor is used in the circuit connection.

The beneficial effect of the utility model is: this measurement device precision is high, and simple in structure, easy to operate, is fit to the tiny length field of measurement and uses.

Description of drawings:

Fig. 1 measures the structural drawing of the device of tinsel magnetostriction length for the utility model; Fig. 2 is the vertical view with platform of circular hole; Fig. 3 is front view, vertical view and the side view of column type bloom, and Fig. 4 is the front view and the side view of the optical lever of pin before and after having.

Embodiment:

Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described.

Fig. 1 is for measuring the device of tinsel magnetostriction length, bracing frame (8), ruler (9), telescope (10), rheochord (11), reometer (12), D.C. regulated power supply (13), switch (14) and the lead (15) of metal spiral pipe (1), steel bracing frame (2), the platform (3) with circular hole, column type bloom (4), tinsel (5), the optical lever (6) with front and back pin, counterweight (7), rigid telescope;

The metal spiral pipe produces a certain size uniform magnetic field in its inside when its being fed a certain size electric current, its upper end is fixed on the steel bracing frame;

The steel bracing frame is used for fixing metal spiral pipe and the tinsel that will measure; Described platform is fixed on the steel bracing frame and is in lower end wiry, and it has circular hole can let the column type bloom freely pass through, and is placed with optical lever at its upper surface;

The column type bloom, it is fixed on lower end wiry and can freely passes through the circular hole on the platform; Described tinsel; Its upper end is fixed on column type bloom on the steel bracing frame and is fixed on its lower end; Tinsel is through in the metal spiral pipe; When thereby the electric current that feeds a certain size in the metal spiral pipe produces a certain size uniform magnetic field in its inside, tinsel will receive the effect in magnetic field, and its length changes;

Optical lever, it has plane mirror supporting frame and two forward foot in a step and a rear foot to constitute, and the forward foot in a step is placed on the platform, and the rear foot is placed on the upper surface of column type bloom;

Counterweight is used for stretching tinsel;

The bracing frame of rigid telescope is used for fixing telescope;

Ruler is fixed on telescopical one side;

Telescope is used for observing the scale that ruler is formed images in the optical lever level crossing;

Rheochord is used for the i.e. electric current through the metal spiral pipe of electric current in the regulating circuit;

Reometer is used for the current value in the metering circuit;

D.C. regulated power supply provides the electric current of steady for the metal spiral pipe;

Switch is the operating switch of circuit;

Lead is that plain conductor is used in the circuit connection.

In solenoid, form certain magnetic field intensity therein through certain strength of current; Being in length wiry in the magnetic field changes and causes column type bloom change in location; Thereby the minute surface of up-down optical lever will change along with column type bloom position to make the rear foot of optical lever; Number of division through the viewed ruler of telescope changes thus, if the variable quantity of number of division is Δ h, the optical lever rear foot is b to the vertical range between the forward foot in a step; The minute surface of optical lever is L to the distance of rule, and the variation delta x that then can express the tinsel length in the magnetic field is:

$\mathrm{\Δx}=\frac{L}{2b}\·\mathrm{\Δh}.$

It below is the technical parameter of measuring the device of tinsel magnetostriction length

This measurement device precision is high, and simple in structure, easy to operate, is fit to the tiny length field of measurement and uses.

Claims (1)

1. device of measuring tinsel magnetostriction length is characterized in that: comprise metal spiral pipe (1), steel bracing frame (2), have circular hole platform (3), column type bloom (4), tinsel (5), have before and after optical lever (6), counterweight (7), bracing frame (8), ruler (9), telescope (10), rheochord (11), reometer (12), D.C. regulated power supply (13), switch (14) and the lead (15) of rigid telescope of pin;

Described metal spiral pipe produces a certain size uniform magnetic field in its inside when its being fed a certain size electric current, its upper end is fixed on the steel bracing frame;

Described steel bracing frame is used for fixing metal spiral pipe and the tinsel that will measure; Described platform is fixed on the steel bracing frame and is in lower end wiry, and it has circular hole can let the column type bloom freely pass through, and is placed with optical lever at its upper surface;

Described column type bloom, it is fixed on lower end wiry and can freely passes through the circular hole on the platform; Described tinsel; Its upper end is fixed on column type bloom on the steel bracing frame and is fixed on its lower end; Tinsel is through in the metal spiral pipe; When thereby the electric current that feeds a certain size in the metal spiral pipe produces a certain size uniform magnetic field in its inside, tinsel will receive the effect in magnetic field, and its length changes;

Described optical lever, it has plane mirror supporting frame and two forward foot in a step and a rear foot to constitute, and the forward foot in a step is placed on the platform, and the rear foot is placed on the upper surface of column type bloom;

Described counterweight is used for stretching tinsel;

The bracing frame of described rigid telescope is used for fixing telescope;

Described ruler is fixed on telescopical one side;

Described telescope is used for observing the scale that ruler is formed images in the optical lever level crossing;

Described rheochord is used for the i.e. electric current through the metal spiral pipe of electric current in the regulating circuit;

Described reometer is used for the current value in the metering circuit;

Described D.C. regulated power supply provides the electric current of steady for the metal spiral pipe;

Described switch is the operating switch of circuit;

Described lead is that plain conductor is used in the circuit connection.

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