CN2215719Y - Fibre vancometer - Google Patents

Abstract

The utility model relates to a fibre vancometer for testing fibre lustre, which is characterized in that the fibre vancometer comprises a light source (W), an optical projection amplifier (G) which carries out quadric amplification to the light reflected by the surface of the tested fibre (T), a detector (P) which converts an optical signal to an electrical signal, an amplifier (F) which amplifies the electrical signal, an analogue-to-digital converter (D) which converts the analog quantity of the amplified electrical signal into the digital quantity, a display (E) which displays the lustre value of the tested fibre, a regulated power supply (N) shared by the optical part and the electric part, and an additional observer (H). The utility model has the advantages of simple structure, convenient operation, high sensitivity and good distinguishability, and is capable of testing the surface lustre of other tiny curved surfaces.

Description

Fibre vancometer

The utility model relates to a kind of testing tool, the analyzer of particularly relevant test fiber gloss.

The size of fiber gloss directly has influence on the appearance style of knitting, but can only be that so-called chemical fibre is difficult especially in the emulation judgement aspect the gloss with respect to natural fiber to man-made fiber especially by the glossiness of subjective each fibrid of estimation evaluation at present.The current thus judgement to fiber gloss only rests on subjective qualitative state, and obviously this is extremely unscientific.

The purpose of this utility model is to provide a kind of fiber gloss analyzer that can test single fiber gloss.

The formation of fiber gloss analyzer of the present utility model comprises: form the light source W of directional light by convex lens, by light transmitting fiber L above-mentioned directional light is injected into the tested fiber T surface that is fixed on the worktable with 45 ° of incident angles; The convex lens S3 of the secondary light stereopticon G that is made of convex lens accepts to become 0 ° reflected light with normal direction from fiber T; Common prism S9 between the secondary light amplifier wherein one road reflected light S11 throws the optical projection amplification viewer H that forms to convex lens; Silicon photocell Q among the detecting device P becomes electric signal to the Beam Transformation that convex lens S6 among the optical projection amplifier G sends; The voltage signal of aforementioned silicon photocell Q output through resistance R 1, potentiometer W1 and resistance R 2 be added to the input anode of prime linear amplifier IC1, signal after amplifying is done further to amplify through the anode that resistance R 6 adds to the linear amplifier IC2 of second level electric signal again.Above-mentioned secondary amplifies and forms amplifier F; Signal after voltage amplification adds to the IC3 of analog to digital converter D again, makes the electric signal analog quantity change digital quantity into; The last gloss number that on the IC8 of device for digit-displaying E, shows tested fiber.The power supply N of this instrument is that D1-D4 makes bridge rectifier through diode by after the transformer transformation, carries out voltage stabilizing by three-terminal regulator block IC4, IC5, IC6, IC7 again.

The utility model fiber gloss analyzer is simple in structure, easy to operate, highly sensitive, good resolution, the surface gloss that can also test other small curved surface.

Fig. 1 is a formation block scheme of the present utility model;

Fig. 2 is light path of the present utility model and circuit diagram.

Fiber glossometer to utility model is described further with reference to the accompanying drawings.

Referring now to Fig. 2,, light source W is made up of bulb K, convex lens S1, smallcolumn diaphragm I, convex lens S2 and light transmitting fiber L.Bulb K is 6 volts 15 watts an instrument bulb.Become approximately parallel light beam after the once focusing of the light that sends by bulb through S1 and S2.The effect of smallcolumn diaphragm I is that I became pointolite through smallcolumn diaphragm after the light that bulb K sends was focused on through convex lens S1.The light that bulb K sends becomes a branch of parallel beam through convex lens S1, light hurdle I behind the convex lens S2, this parallel beam shines the end face of light beam fiber L, penetrates a branch of directional light by the light transmitting fiber other end.。This parallel beam incides the fiber I surface that is fixed on the worktable with 45 ° of incident angles.At acceptance angle is that stereopticon G is equipped with in 0 ° place, the first order optical projection amplification of light through being made up of convex lens S3, S4 that is reflected by tested fiber surface.This light that is exaggerated is divided into two the tunnel to the reflected light of fiber through general common prism S9, wherein one the tunnel reflexes to the second level optical projection that convex lens S5, S6 form through common planar catoptron S10 and amplifies.By detecting device P light signal is changed into electric signal through the light beam after the light amplification of the second level.Detecting device P mainly is made up of optical detection device Q, and Q is a kind of silicon photocell, produces certain voltage after rayed, just light signal is transformed into electric signal.Another road reflected light reflexes to the optical projection amplification viewer H that convex lens S7, S8 form by common planar catoptron S11, therefrom can observe tested position of fibers and focusing situation.Very faint by the electric signal that silicon photocell Q detects, so this signal must be through the amplification of electric signal amplifier F.Amplifier mainly is made of two integrated linear amplifier circuits and some resistance, electric capacity.The output voltage signal of detecting element photoelectric tube is through resistance R 1, and potentiometer W1 and resistance R 2 are added to the input end (i.e. "+" end) of linear amplifier IC1 to voltage signal, and IC1 amplifies voltage signal by linear amplifier.By the input end (i.e. "+" end) of the signal after the IC1 amplification through resistance R 6 input second level electric signal amplifier IC2, IC2 amplifies once more by linear amplifier.Be input to modulus transition element IC3 through the electric signal after the secondary voltage amplification, the effect of IC3 is that the electric signal analog quantity is transformed into digital quantity, thereby is input to the display E that is made up of display tube IC8, shows the gloss number of tested fiber.

The power supply of amplifying circuit is supplied with by power regulator N.220 volts alternating current becomes 18 volts of AC power through transformer B, becomes direct voltage source again behind the bridge rectifier that commutation diode D1-D4 forms.This direct supply makes power supply become constant working power by the voltage stabilizer that three-terminal regulator block IC4, IC5, IC6, IC7 form, and supplies with amplifying circuit.Optical detection device Q adopts linearity silicon photocell preferably in this fiber gloss analyzer, makes the variation of light signal that better linearity be arranged.IC1, IC2 are linear amplifier.IC3 is an analog to digital converter.IC8 is a digital indicator.

Under above-mentioned overall formation enlightenment, this field those of ordinary skill can be made local correction or improvement, not influencing under the said determination instrument original function situation, can produce various coordinators.

Claims (5)

1, a kind of fiber gloss analyzer, it is characterized in that comprising light source (W), the light of tested fiber (T) surface reflection light source is made the optical projection amplifier (G) that secondary amplifies, light signal is converted to the detecting device (P) of electric signal, the amplifier of amplification signal (F), display (E) the electric signal analog quantity of amplifying converts the analog to digital converter (D) of digital quantity to and shows tested fiber gloss number also has photoelectricity partial common stabilized voltage supply (N); Also comprise extention viewer (H).

2,, it is characterized in that small spot light source (W) is by instrument bulb (K), convex lens (S according to the described analyzer of claim 1 ₁) (S ₂) and light transmitting fiber (L), smallcolumn diaphragm (I) form.

3, according to the described analyzer of claim 1, it is characterized in that light source (W) light beam and normal direction are at 45, optical projection amplifier (G) becomes 0 ° of direction to receive the reflected light of tested fiber (T) with normal.

4,, it is characterized in that the light secondary of viewer (H) and optical projection amplifier (G) amplifies after once amplifying by prism (S according to the described analyzer of claim 1 ₉) carry out after the beam split.

5,, it is characterized in that detecting element (Q) adopts silicon photocell in the detecting device (P) according to the described analyzer of claim 1.

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