CN2286322Y

CN2286322Y - Chromatic circle resistance direct-reading card

Info

Publication number: CN2286322Y
Application number: CN 96239864
Authority: CN
Inventors: 李曦; 李家庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-13
Filing date: 1996-12-13
Publication date: 1998-07-15
Anticipated expiration: 2006-12-13

Abstract

The utility model relates to a chromatic circle resistance direct-reading card which is characterized in that the chromatic circle resistance direct-reading card is composed of a panel and circle rotating disks. The panel is provided with a chromatic circle resistance reading window, and the circle rotating disks are arranged on the back of the panel. Five rotating disks are transversely arranged and are mutually stacked. The five rotating disks can rotate around respective peripheral core. Each rotating disk is printed with 10-20 color lumps and corresponded digital signatures. The color lumps are uniformly distributed along the circumference and are mutually different. The utility model has the advantages that the chromatic circles of the card are just rotated to be consistent with the respective corresponding chromatic circles of a measured resistance. So the rated resistance and the error of the resistance can be directly read according to the number value exhibited in the reading window. The chromatic circle resistance direct-reading card has the advantages of fastness and accuracy and human brain memory inference is not used so that the purposes of fastness, accuracy, time saving, labour saving and improved efficiency can be achieved.

Description

Colour circle resistance direct-reading card

The utility model relates to a kind of colour circle resistance direct-reading card.

Be operated in electronic technology field personnel know that all the resistance of miniature resistance and error are to represent with the color colour circle that is printed on the resistive element.Be useful on the Fourth Ring system of precision resistance, promptly generally be printed on five road rings on resistance, the rightest is error loop and the three ring systems that are used for conventional, electric-resistance together, promptly generally is printed on four road rings on resistance, and the rightest is error loop together.Stipulated different colors, different numerical value implications has been arranged in different positions.Behind the colour circle and combinations of values of diverse location, constituted the nominal resistance and the error amount of a resistance.For example, (three roads, the left side) brown representative 1 in significant figure ring position, redness represents 2, orange representative 3, yellow represents 4, and green represents 5, and Lan Se represents 6, and purple represents 7, and grey represents 8, and white represents 9, and black represents 0; (right several second roads, the Ω of unit) orange representative 10 in a times multiplication ring position ³, blueness represents 10 ⁶, silver color representative * 0.01, black is represented 10 ° etc.; In the error loop position, golden representative ± 5%, black representative ± 1%, green representative ± 0.5%, blue representative ± 0.2%, purple representative ± 0.1% or the like.For example: a Fourth Ring system precision resistance, first ring (the first from left road) promptly represents 1 for brown, second ring promptly represents 4 for yellow, the 3rd ring promptly represents 9 for white, the Fourth Ring is that silver color is promptly represented * 0.01 Ω, five rings (rightmost error %) promptly represent for blue look ± and 0.2, so, the resistance of this colour circle combination representative is 149 * 0.01 Ω=1.49 Ω, and error is ± 0.2%.Determining the resistance of a resistance, is to realize with the method for corresponding numerical value with human brain memory shades of colour name.But, will be clear that the parameter value of various elements such as knowing resistance, electric capacity, be the prerequisite of electronic technology work, also be one can not general idea groundwork.But determine the resistance of colour circle resistance usually can run into a lot of difficulties with human brain memory and reasoning.For example: color name and actual color regular meeting differentiate unclear, then can cause getting the wrong sow by the ear because of the people, because of light, the aberration that causes because of manufacturer's difference; Moreover different color, diverse location numeric value represented have tens more than, generally go into to be difficult to learn off, and easily make mistakes.Therefore, be difficult for quick and precisely inerrably reading the numerical value implication of forming by four to five colour circles.This difficulty for countless beginners, for not marking parameter on the circuit diagram, does not allow again to weld situation about measuring down from circuit board, and is just particularly outstanding.Therefore, for a long time, electronic technology fan can have a kind of simplest and dependable method to solve this problem with regard to thirsting for.

The colour circle resistance direct-reading card that the utility model designs in order to solve existing problem in the above-mentioned prior art just, utilize this card, need not remember color name, need not remember numeral, the analysis and judgement that do not use one's head, by mutual colorimetric, each rotating disk on the operation jig, make its combination back identical, nominal resistance and the error that can fast, accurately read resistance by the numeral that demonstrates on the jig with ohmically each corresponding colour circle.

The purpose of this utility model realizes by following measure: true qualities loop resistance direct-reading card is made up of with five identical round turntables of diameter that are arranged on panel back the panel that offers colour circle resistance reading window, five folded settings of the transversely arranged mutual pressure of rotating disk, and can rotate around the center of circle separately, all be printed with 10～12 mutual different color lumps and corresponding digital marks that are uniformly distributed along the circumference on each disk, each disk and each color lump all can show in the colour circle resistance reading window on panel with numeral.

In the utility model, the center of circle of five rotating disks all is separately fixed on the median septum behind the panel by fixture.

Advantage of the present utility model is: because the utility model is to come the colorimetric reading by the disk that rotates on the direct-reading card, only needing that card is gone up color lump on each disk forwards to consistent with each corresponding colour circle of institute measuring resistance, can read the resistance and the error of directly reading this resistance in the window in the colour circle resistance, convenient and swift.If three ring system resistance, then the first from left disk is invalid.Need not to use the human brain memory reasoning again, reached fast, accurately, save time, laborsaving, the purpose of raising the efficiency.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a front view of the present utility model.

Fig. 2 is the inner structure diagrammatic sketch that removes behind the panel.

Fig. 3 is the utility model profile reference diagram.

The utility model is done detailed description below in conjunction with accompanying drawing: as Fig. 1, Fig. 2, shown in Figure 3: true qualities loop resistance direct-reading card is read the panel 2 of window 1 and is formed with the identical round turntable 3 of five diameters that is arranged on panel back by offering the colour circle resistance, five folded settings of the transversely arranged mutual pressure of rotating disk, and can rotate around separately the center of circle, the center of circle of five rotating disks all is separately fixed on the median septum 5 behind the panel 2 by fixture 4.All be printed with 10～12 mutual different color lumps and corresponding digital marks that are uniformly distributed along the circumference on each disk, each disk and each color lump all can show in the colour circle resistance reading window 1 on panel with numeral.

The pithy formula that also is printed with Fourth Ring system, three ring system colour circle marker method figure, colorimetric color ring and is convenient to remember on the panel 2 of this direct-reading card also is printed with operation instruction on the plate 6 in the back.

Using method of the present utility model is as follows:

1: one Fourth Ring system precision resistance of example, first ring (the first from left road) is yellow, second ring is white, and the 3rd ring is for brown, and the Fourth Ring is a black, the five rings is golden, utilize this direct-reading card, only need with card colouring loop resistance value read the color lump on each disk in the window forward to consistent with each corresponding colour circle of institute measuring resistance, so, the resistance that can read this resistance is 491 Ω, and error is ± 5%.

2: one three ring systems of example resistance, first ring (the first from left road) is orange, second ring is blue look, the 3rd ring is black, and the Fourth Ring is green, utilizes this direct-reading card, each colour circle (four roads, the right) that card colouring loop resistance value is read in the window forwards to consistent with ohmically each corresponding colour circle, so, the resistance that can read this resistance is 36 Ω, and error is ± 0.5%.

Claims

1, a kind of colour circle resistance direct-reading card, it is characterized in that: it is made up of panel (2) round turntable (3) identical with five diameters that are arranged on panel back that offers colour circle resistance reading window (1), five folded settings of the transversely arranged mutual pressure of rotating disk, and can rotate around the center of circle separately, all be printed with 10～12 mutual different color lumps and corresponding digital marks that are uniformly distributed along the circumference on each disk, each disk and each color lump all can show in the colour circle resistance reading window (1) on panel with numeral.

2, resistance colour circle direct-reading card according to claim 1 is characterized in that: the center of circle of five rotating disks all is separately fixed on the median septum (5) behind the panel (2) by fixture (4).