SU1155857A1 - Multiscale indicating device - Google Patents

Abstract

A MULTIPLE INDICATOR DEVICE containing a gas discharge linear indicator and cabinets with switching devices, routing and c. so that, in order to expand the functionality without increasing the size, each scale is made on individual light lines grouped into a package, in the form of plates illuminated at the end of the scale corresponding to this scale by light sources connected to a switch, the indicator section located above the scale limit value, optically coupled to the light guides of the scales.

Description

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7 D 1 The invention relates to instrumentation and can be used for multichannel indication of measured parameters. Multiscale indicator devices are known that contain a measuring device, a dial-up of scales and a switching device that provides a change of scales when sensors of measured parameters are connected to a measuring device. However, these devices contain a complex kinematic scheme and are not suitable for operation in low light conditions. The closest to the proposed device by its technical essence and the achieved result is a multi-channel indicator device containing gas discharge linear indicators and scales with a switching device, each indicator with a scale made in the form of a single module. In this device, an increase in the number of monitored parameters causes an increase in the number of modules, which leads to an increase in the size of the device, as well as to an increase in energy consumption. In addition, in these devices there is no additional signaling that the value of the measured parameter is beyond the allowable value. The aim of the invention is to expand the functionality without increasing the size of the device. This goal is achieved by the fact that in a multiple indicator array containing a linear gas discharge indicator and scales with switching devices, each scale is made on individual light guides grouped in a package. Tin, illuminated at the end of the relevant light sources associated with this scale, associated with the switch, with the indicator area located above the limit value of the scale, optical associated with svetopro water scales. Such a solution provides for expanding the functionality without increasing the dimensions of the device by using one common linear indicator with a package of scales illuminated at the end by light sources, and also through an additional 57 indications of the output of the measured parameter beyond the established limits. Fig. 1 shows an exemplary embodiment of a multi-display instrument; FIG. 2 is a section A-A in FIG. 1; FIG. 3 is a section BB in FIG. 1; FIG. 4 is a circuit for connecting sensors and scale backlights. The device (FIGS. 1 to 3) contains a gas-discharge linear indicator 1, the length of the light of the pole which is proportional to the value of the measured parameter and can vary from position B to position D, and the distance from position B to D forms the entire luminous zone and the length of the light of the pole in position G corresponds to the maximum permissible value of the measured parameter, electrical switch 2, for example, push-button, light lines with scales and indices 3–9, sources of illumination, for example, mini-minimal incandescent lamps 10-16, Scales and the indices are engraved on the surfaces of the light guides. The light guide is a plate of plexiglass, illuminated at the end of the incandescent lamp. The light propagates inside the light guide according to the law of total internal reflection and, falling on the signs and risks engraved in, illuminates them. Digits O, 50, 100, 150 and 200 are made on the light guide and illuminated by the lamp 12, and the holes for installing the lamp 12 in the light guides 6 and 7 are colored so that the digitization of the scales 6 and 7 is not highlighted when the lamp 12 is ignited About 100, 200, 300 and 400 are completed on the light guide 6, which is illuminated by the lamp 13, and the holes for the installation of the lanpas 13 in the light guide 5 and 7 are painted over. The remaining scales are made similarly, with the digitization O, 20, 40, 60 and 80 performed on the light guide 7, the inscription Scor - on the light guide 3, the inscription Pressure, - on the light guide 4, the index X 10 - on the light guide 8, and the index X 100 - on light guide 9. The light guide configuration is such that with one of the ends they are led to the indicator zone 17, which lies outside the permissible values of the measured parameters (Fig. 3). Multiscale indicator device operates as follows.

For counting, for example, the parameter Speed, on a scale of 0, 50, 100, 150 and 200 with an index of X 10, the operator turns on the button 1 of the switch 2, and the switch contacts and the signal from the sensor are closed. It is applied to the indicator 1 and at the same time the supply voltage of the lamps 3, 2 and t5, illuminating the light lines: 3, the words Speed, 5 - with digitizing O, 50, 100, 150 and 200 and 15 - with the index X 10. Similarly other parameters are measured.

When the parameter goes beyond the maximum permissible value, the luminous pillar goes beyond the position Γ and falls into zone 17, to which the end of the light guide of the scale is connected. The luminous flux of the indicator emitted in zone 17 falls into the polished end of the light guide, for example, 5 (see Fig. 3), propagates inside the light guide according to the law of total internal reflection and, falling on risks, numbers and signs, additionally highlights them. Since the spectral characteristic

Since the indicator differs from the spectral characteristics of the backlight lamps of the scales, the scale changes the color and brightness of the luminescence, which is a sign of the 5th parameter being normal. In this case, the larger the value of the parameter output for the norm, the greater the luminous flux falls into the scale and, accordingly, the greater the change in the brightness to and the scale color.

So the intended

the instrument allows several measurements

different parameters by one module,

which significantly reduces the weight, size, laboriousness of manufacturing and

increases reliability, while the instrument provides additional indication at the output of the measured

parameter beyond the set limits, 0 which also expands the functionality of the device without increasing its dimensions. In addition, thanks to the backlight of the cabinet and the light of the indicator, it is possible to work with the device under conditions; low light and dark.

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Claims (1)

MULTI-SCALE INDICATOR DEVICE containing a gas-discharge linear indicator and scales with switching devices, characterized in that, in order to expand functionality without increasing dimensions, each scale is made on separate light guides grouped in a package in the form of plates illuminated at the end by light sources corresponding to this scale associated with the switch, and a portion of the indicator, located in the upper limit of the scale, is optically connected with the optical fibers of the scales. FIG. ί next sl 00 ΟΊ m