JPH02165522A - Panel switch - Google Patents

Abstract

PURPOSE:To prevent misoperation and also simplify operation of the panel switch by providing means for switching a switching mechanism, and a scale portion corresponding to a service range. CONSTITUTION:A color monitor 1 comprises a light source 2 for causing light to enter a sample solution L, a color sensor 3 for receiving that part of light passing through the sample solution L which is in a specific wavelength range, an amplifier 4 for amplifying signals obtained by the color sensor 3, a switching mechanism 5 for switching signals sent from the amplifier 4, a display portion 6 for inputting signals from the switching mechanism 5 so as to perform level display and a panel switch 7. The panel switch 7 is selected and set to automatically determine a service range and, since the panel switch 7 is provided with a scale, the display can be read out from the scale corresponding to the service range determined. It is thus enabled to simplify the operation, prevent misreading, and carry out precise measurement.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a panel switch used in various devices such as analytical instruments, measuring instruments, and control equipment equipped with a display section. The present invention relates to a panel switch having means for performing the above operations.

"Prior Art and Its Problems" Generally, various types of equipment such as analytical instruments, measuring instruments, and control instruments are equipped with a display section that displays measured values in digital or analog format. .

Such equipment usually has several ranges depending on the measurement range, measurement sensitivity, etc., and is equipped with a switching mechanism to switch between the ranges.

As a switching mechanism, for example, a microswitch ON
Some types are known, such as those that are switched by 10 F F and those that are switched by turning a switch.

By the way, when using such equipment, the range to be used, such as the measurement range, is usually set according to the object to be measured, and by switching the switching mechanism, the display section can be set to correspond to the desired range to be used. do.

However, among these instruments, for example, chemical analysis instruments, the operating range must be appropriately selected depending on the type of analyte and its concentration, but determining the operating range requires a certain degree of familiarity with chemical analysis. Particularly in cases such as simple analysis where the type and concentration range of the object to be measured are determined, it is troublesome to select the range to be used each time, and the operability is poor. Furthermore, in these devices, since the scales on the display section are provided corresponding to each range, there is a risk of reading errors.

"Means for Solving the Problems" The panel switch of the present invention is a panel-shaped switch used in equipment that is equipped with a display section and has a switching mechanism for switching the display on the display section according to the range used. The above-mentioned problem is solved by having a means for performing the horizontal switching of the above-mentioned switching 411 and having a scale corresponding to the above-mentioned range of use.

"Function" According to the panel switch of the present invention, since it has a means for switching the switching mechanism and is equipped with a scale corresponding to the range used, it is possible to select the panel switch and set it. The operating range is automatically determined, and since the panel switch is equipped with a scale, the display can be read on the scale corresponding to the determined operating range.

Embodiment FIG. 1 shows an embodiment of a device using the panel switch of the present invention, and reference numeral -1 in FIG. 1 is a color monitor. As shown in Fig. 2, this color monitor 1 includes a light source 2 that inputs light into the sample solution, and a color sensor 3 that receives light in a specific wavelength range that is emitted after passing through the sample solution.
, an amplifier 4 for amplifying the signal obtained by the color sensor 3, a switching mechanism 5 for switching the signal from the amplifier 4, and a signal from the switching mechanism 5 manually adjusted to a level. It is roughly composed of a display section 6 for displaying information and a panel switch 7 shown in FIG. 1.

The light source 2 consists of a stabilized power source 8 and a pilot lamp 9 connected to the stabilized power source 8, and generates a certain amount of light to enter the sample solution. Here, as the pilot lamp 9, a halogen lamp or the like that emits light with a wavelength of about 400 to 700 ns is preferably used. The sample solution is placed in a cell such as a test tube, and is colored by pretreatment.

The color sensor 3 includes a color filter 1G that selectively transmits light in a specific wavelength range, and a light receiving element 11 that receives the light transmitted through the color filter 1O. The color filter 1G includes a red color filter log that selectively transmits light in a wavelength range of around 600 n+a, and a 5
It consists of a green color filter lOb that selectively transmits light in a wavelength range of around 60 nn+, and a blue color filter 10c that selectively transmits light in a wavelength range of around 445n-. Based on such a configuration, the color sensor 3 detects the amount of light in a specific wavelength range that has passed through the sample solution, and converts this into an electrical signal.

Three amplifiers 4 are arranged corresponding to each of the three types of color filters lO..., and each amplifier 4 is arranged to correspond to the R signal,
Either the G signal or the B signal is amplified.

In the switching mechanism 5, a microswitch to be described later is selected and turned on by a panel switch 7, thereby selecting one of the amplified R signal, G signal, and B signal and inputting it to the display section 6. be.

The display unit 6 consists of a liquid crystal display element 13 arranged on the front side of the case 12 as shown in FIG. It is to be displayed.

The panel switch 7 is made of transparent resin and is detachably attached to the display section 6 of the case 12, and is provided with a scale 14 corresponding to the bar graph. Moreover, this panel switch 7 is connected to the case 1 by means of a screw 15.
2 and is fixed. Based on such a configuration, the concentration of a specific component in the sample solution can be converted by aligning the bar graph displayed on the display section 6 with the scale 14 of the panel switch 7. Since the panel switch 7 is prepared in advance according to the specific chemical component to be analyzed, the scale 14 is provided corresponding to the specific chemical component. In other words, the scale 14 is obtained by experimentally determining the relationship between the concentration of a specific chemical component and the intensity of light transmitted from a sample solution colored by a predetermined coloring operation according to the concentration of the specific chemical component. It is determined from the value.

Further, as shown in FIG. 3, this panel switch 7 has two four parts I6.16 formed on its back surface corresponding to specific chemical components to be analyzed. The recessed portion 16 includes three microswitches 17 arranged below the liquid crystal display element 13.
It is formed at a position corresponding to any two of the microswitches 17 and 17, and is configured so that when the panel switch 7 is installed on the liquid crystal display element 13, the two microswitches 17 and 17 are not pressed. be. Micro switch 1
7... are electrically connected to the switching mechanism 5 to switch the output of the electrical signal from the color sensor 3 to the display unit 6, and are provided corresponding to the R signal, G signal, and B signal, respectively. As a result, a signal corresponding to the ON state and a composite signal such as (G+R), (G+B), (R+B), etc. are output to the display unit 6.

By attaching the panel switch 7 to the frame of such a configuration, the corresponding microswitch 17 without the four parts 16. An optimal color filter IO is selected, and a signal from this color filter IO is output to the display unit 6.

For example, in order to analyze the amount of a specific component in soil using Color Monitor I with such a configuration, first, the sample is subjected to a predetermined pretreatment depending on the specific chemical component, and the specific chemical component is dissolved in a solvent. Develop color and obtain a sample solution. Next, a panel switch 7 corresponding to the above-mentioned specific chemical component is selected, mounted at a predetermined position, and fixed with screws 15. Next, fill the cell with a blank solvent (usually water) that does not contain any specific chemical components, and insert the cell into the cell receiving port 1 shown in Figure 1.
8, condensing light from the light source 2 into the cell through the lens 19 to obtain an electric signal corresponding to the blank, and displaying the bar graph displayed on the display section 6 on the panel by the sensitivity adjustment section of the illustrated path. Transmission amount of scale 14 of switch 7 is 100% (
In other words, adjust to the position of "Specified Chemical Substance Zero").

Thereafter, the prepared sample solution is put into a cell, and this cell is inserted into the cell receiving port 18 to collect and inject light. Then, in the light incident on the sample solution, light in a wavelength range corresponding to the color of the solution is absorbed in a manner corresponding to the concentration of the color of the solution, that is, the concentration of a specific chemical component of the solution, and is transmitted to the color sensor 3. The transmitted light is selected in a specific wavelength range by the color filter 10, and the transmitted light is converted into an electric signal by the light receiving element 11. After these electric signals are amplified, one type of electric signal or a combined electric signal is selected by the microswitch 17 turned on by the panel switch 7 and inputted to the display section 6. The human-powered electrical signal is output and displayed as a bar graph by the liquid crystal display element 13, and this bar graph is displayed by the panel switch 7.
By reading against the scale 14, the amount of the specific chemical component in the sample solution can be calculated.

With the panel switch 7 having such a configuration, when using the color monitor 1 using this panel switch 7, the panel switch 7 is formed corresponding to the specific chemical component to be analyzed in advance, so it is possible to create a calibration curve or use a single color monitor. There is no need to select the wavelength of light, and the operation becomes very simple. In addition, because the operation is simple, analysis can be performed in a short time.
Furthermore, it can be easily handled even by those who are not familiar with chemical analysis. Furthermore, since the panel switch 7 is provided with a scale corresponding to the range used, reading errors are prevented and more accurate measurements are possible.

FIG. 4 shows another embodiment of a device using the panel switch of the present invention, in which reference numeral 20 is a color monitor and 21 is a panel switch. The color monitor 20 is
It has a mechanism similar to that of the color monitor 1 in the embodiment shown above, and is equipped with a display section 22 that displays a bar graph in accordance with the level of the manually input electric signal.

The panel switch 21 is made of transparent resin and is detachably attached to the display section 22 of the case 23, and is provided with a scale 24 corresponding to a bar graph. Also,
This panel switch 21 has multiple terminals 2 on its back side.
5... are provided, and these terminals 25...
...by removably fitting the panel switch 2.
1 is fixedly attached to the case 23. The terminals 25 are also used to switch the switching mechanism (the path shown in the figure) of the color monitor 20 by fitting into the manual holes 26.

In other words, the terminals 25 are not provided corresponding to all of the input holes 26, but are provided for some (- or multiple) of the manual holes 26, which are predetermined according to the usage level. The input hole 26 is configured to fit with the input hole 26
Contacts fitted into and provided inside (path shown)
conduction, thereby switching the switching mechanism to determine the usage level. In this case, terminal 2
5... and the input holes 26... may be provided separately for simply fixing the panel switch 21 and for switching the switching mechanism.

With the panel switch 21 having such a configuration, when using the color monitor 20 using the panel switch 21, since the panel switch 21 is formed corresponding to the specific chemical component to be analyzed in advance, its operation becomes very simple. Further, since the panel switch 21 is provided with a scale corresponding to the range used in advance, reading errors are prevented and more accurate measurement is possible.

In each of the above embodiments, the panel switch of the present invention is applied to a color monitor, but the panel switch of the present invention is not limited to this, and can be applied to other analytical instruments, measuring instruments, control instruments, etc. . Further, in the embodiment shown in FIG. 1 in the above embodiment, a four part 16 is provided on the back surface of the panel switch 7 and the microswitch 17 is made to correspond to the four part 16, and in the embodiment shown in FIG. Although the means for switching the switching mechanism was provided by providing a terminal 25 on the back surface of the panel switch 21 and making it correspond to the input hole 26, the present invention is not limited to these, and may be implemented by various other methods. Form means are applicable.

"Effects of the Invention" As explained above, the panel switch of the present invention has a means for switching the switching mechanism and is equipped with a scale corresponding to the range in use, so that the panel switch can be selected. However, by setting this, the operating range of the device can be automatically determined, thereby preventing operational errors and simplifying the operation. Furthermore, since the panel switch is equipped with a scale, the display can be read with a scale corresponding to the determined range of use, thus preventing reading errors and ensuring accurate measurements.

[Brief explanation of the drawing]

1 to 4 are views relating to the panel switch of the present invention, in which FIG. 1 is a plan view of a color monitor using an embodiment of the panel switch of the present invention, and FIG. 2 is a plan view of a color monitor using the panel switch of the present invention. 3 is a side sectional view of a panel switch, and FIG. 4 is a schematic configuration diagram of a color monitor using another embodiment of the panel switch of the present invention. . 1.2D...Color monitor, 6.22...Mountain display section, 7.21...Spring flexible switch, 14
．． 24...Scale, 16...Recess,! ?
・・・・・・Micro switch, 25・・・Terminal,
26...human power hole.

Claims (1)

[Claims] A panel-shaped switch used in equipment that is equipped with a display section and a switching mechanism for switching the display on the display section according to the range in use, and has a means for switching the switching mechanism. A panel switch characterized in that it is equipped with a scale corresponding to the above-mentioned range of use.