TWM502505U - A cuvette's holder - Google Patents

Description

Colorimetric tube set

This creation discloses a colorimetric tube set.

The so-called color tube set (English: a cuvette's holder) is a device or mechanism for analyzing the intensity of light. This device can measure the intensity of light of different wavelengths with a photometer, and analyze the relationship between wavelength and light intensity. It is converted into an electronic signal by absorbing light energy through the sensing body, thereby measuring the luminous flux or the optical power.

FIG. 1 is an external view of a colorimetric tube set 1 constructed by a plurality of tube walls, and the colorimetric tube set 1 is used for loading: a light emitter 11 (with a light emitting diode (LED) As an example, disposed in a first tube wall, and one of the light emitters 11 is exposed to the first tube wall; an optical receiver 13 (taking a photodiode) Is disposed in a second tube wall, and one of the light receivers is exposed to the second tube wall; and a sample to be tested 12 (for example, a chlorophyll concentration solution) is loaded in a colorimetric color The tube 16 is disposed above the third tube wall between the first tube wall and the second tube wall. It should be understood that the light emitting aperture of one of the light emitters 11 is in a parallel state with the light receiving aperture of one of the light receivers.

To know the degree of light absorption of the sample to be tested (eg, chlorophyll concentration solution) 12: pass monochromatic light (such as blue light) emitted by the light emitter 11 through the sample to be tested (chlorophyll concentration solution) 12, and determine the test to be tested. The absorbance of the sample (chlorophyll concentration solution) 12 to the blue light wave, and then, the light receiver 13 converts the light intensity that is not absorbed by the chlorophyll into a photocurrent, so that the researcher can use the photometer to analyze the software and then according to the photocurrent The numerical size plots the absorption spectrum. In addition, the monochromatic light of a specific wavelength is respectively transmitted through the standard solution and the solution to be tested, and the absorbance is compared, which can be quantitatively analyzed.

Therefore, the advantages of the current colorimetric tube are: simple fabrication, low cost, and can isolate light interference in the environment except for the top opening.

In contrast, in terms of shortcomings: LED beams are non-parallel, and their scattered light is scattered multiple times through the tube wall and enters the receiver, causing interference. The opening of the receiver end is too large, and it is easy to receive the scattered light. In addition, there is no mask at the upper end, and external light enters through the upper opening, causing interference.

According to the above, the generation of noise due to the scattering of the light source causes the magnitude of the photocurrent signal to be affected, and the measurement error is too large.

Furthermore, when the colorimetric tube device is used in the measurement fluorescence technique, similarly, the background value of the photocurrent is too large due to the scattering of the light source, and the fluorescence intensity cannot be measured.

[Note]: Table 1 describes the measurement of the sample to be tested: for example, the light absorption background of the chlorophyll concentration and the background value of the photocurrent of the fluorescent absorption portion.

This creation proposes a colorimetric tube set, which is used to solve the conventional noise caused by the scattering of the light source. Therefore, the measurement in the dark room eliminates the interference of 60 Hz electronic noise, and the background value of the photocurrent can be Controlled below 0.01uA, this results in accurate data results for the absorption spectrum based on the magnitude of the photocurrent-signal.

In order to meet the above objectives, a colorimetric tube set proposed by the present invention is constructed for a plurality of tube walls, and the colorimetric tube device is used for loading: a light emitter disposed in a first tube wall And the light emitting outer edge of the light emitter is not exposed to the first tube wall; a light receiver is disposed in a second tube wall, and one of the light receivers is not exposed to the light edge a tube wall; and a sample to be tested, loaded in a colorimetric tube, and the colorimetric tube is disposed on a third tube wall connected between the first tube wall and the second tube wall, wherein When a monochromatic light emitted by the light emitter passes through the sample to be tested, the light receiver is determined to be in a parallel state with the light emitter. The absorbance of the sample to the monochromatic light wave.

1‧‧‧ colorimetric tube set

11‧‧‧Light emitter

12‧‧‧Test samples

13‧‧‧Optical Receiver

16‧‧‧ colorimetric tube

2‧‧‧ colorimetric tube set

21‧‧‧Light emitter

22‧‧‧Test samples

23‧‧‧Optical Receiver

24‧‧‧Fluorescent Receiver

25‧‧‧Printed circuit board

26‧‧‧ colorimetric tube

27‧‧‧ Cover box

W1‧‧‧ first wall

W2‧‧‧ second wall

W3‧‧‧ third wall

W4‧‧‧Four wall

W5‧‧‧ fifth wall

W6‧‧‧6th wall

D1‧‧‧Lighting aperture of light emitter

D2‧‧‧Lighting aperture of optical receiver

D‧‧‧Between the first wall and the second wall

D21‧‧‧ diameter of light emitter

D3‧‧‧Lighting aperture of the fluorescent receiver

The vertical distance between the L‧‧‧ fluorescent receiver and the monochromatic light

As shown in Fig. 1, the figure is an external view of a conventional colorimetric tube set.

As shown in Figure 2, this figure is a physical design view of the colorimetric tube set of the creation.

As shown in Fig. 3, the figure is a plan view of the colorimetric tube set of the present case.

As shown in Figure 4, this figure is a top view of a creative colorimetric tube mount with a fluorescent receiver.

As shown in Figure 5, this figure is an illustration of the appearance of the power required to supply the photometer.

Considering the conventional colorimetric tube set 1: (1) the problem of masking, (2) the loaded light emitter 11, the light receiver 13, and a standby between the light emitter 11 and the light receiver 13 The relative positional relationship between the three components in the sample 12 is measured, (3) the angle and position of the incident and receiving light sources, and (4) the magnitude of the photocurrent measured by the light absorbing portion and the fluorescent absorbing portion.

First, in order to solve the above-mentioned conventional colorimetric tube set 1 (1), the upper end is unmasked, and external light enters through the upper end opening, causing interference. As shown in Fig. 2, the figure is a physical design view of the colorimetric tube set 2 of the present invention. The colorimetric tube device 2 constructed by a plurality of tube walls (W1 to W6) has a cubic shape (also referred to as a confined space), and the tube walls (W1 to W6) are made of an opaque material. Corresponding holes are provided in the pipe walls W1, W2 and W5 for insertion by a light emitter 21, a light receiver 23 and a fluorescent receiver 24 (shown in Fig. 5).

The following paragraphs will describe the light emitter 21 loaded in the colorimetric tube set 2 of the present invention, the light receiver 23, and a three of the elements 22 to be tested disposed between the light emitter 21 and the light receiver 23. (2) Relative positional relationship (3) Angle and position of the incident light source and the receiving light source (4) The magnitude of the photocurrent measured by the light absorbing portion and the fluorescent absorbing portion is analyzed.

Among them, as shown in Fig. 3, the figure is a plan view of the colorimetric tube set 2 of the present invention. The colorimetric tube device 2 is mounted on the light emitter 21 (taking a light emitting diode (LED) as an example), disposed in the first tube wall W1, and one of the light emitters 21 is not exposed to the light emitting outer edge. The first tube wall W1. The photoreceiver 23 (for example, a photodiode) is disposed in the second tube wall W2, and one of the light receiving members 23 is not exposed to the second tube wall W2. The sample to be tested 22 (taking a chlorophyll concentration solution as an example) is loaded in a colorimetric tube 26 and the colorimetric tube 26 is disposed in the connection. Above the third tube wall W3 between the first tube wall W1 and the second tube wall W2. It should be understood that one of the light-emitting apertures d1 of the light emitter 21 and the light-receiving aperture d2 of the light receiver 23 are in a parallel state.

Next, the other parameter relationship for the design of the colorimetric tube set 2 is that the light receiving aperture d2 / the distance between the first tube wall W1 and the second tube wall W2 is less than tan 10 °. The light-emitting aperture d1 of one of the light emitters 21 is not greater than (also referred to as less than or equal to) the diameter D21/2 of the light emitter 21 (note: "/" is a division number, the same applies hereinafter).

Finally, when the conventional colorimetric tube is used in the measurement fluorescence technique, the background value of the photocurrent is too large due to the scattering of the light source, and the problem of the fluorescence intensity cannot be measured. The solution to the present solution is as shown in FIG. 4, which is a configuration diagram of the loading fluorescent receiver 24 of the colorimetric tube set 2 of the present invention. As can be seen from the figure, the fluorescent receiver 24 is disposed on the fifth tube wall W5 and is perpendicular to the monochromatic light, and the light receiving outer edge of the fluorescent receiver 24 is not exposed to the fifth tube wall W5. And one of the fluorescent receivers 24 is connected to the optical aperture d3/the vertical distance L between the fluorescent receiver 24 and the monochromatic light is less than tan20.

It should also be mentioned that, as shown in Figure 5, the appearance of the power supply required for a photometer is shown. Therefore, the light emitter 21 and the positive and negative electrodes of the fluorescent receiver 24 are externally connected to a printed circuit board 25 through a hole formed in a shadow chamber formed by a cover case 27.

As described above, when the researcher uses the colorimetric tube set 2 described above to know the degree of light absorption of the sample to be tested (for example, the chlorophyll concentration solution) 22, the single light-emitting diode 21 is issued. The color light (such as blue light) passes through the sample to be tested (chlorophyll concentration solution) 22, and absorbs the absorbance of the blue light wave by the solution, and then the light receiver (for example, photodiode) 23 converts the light intensity according to the light absorption without chlorophyll into Photocurrent, so researchers can use the analysis software of the photometer to plot the absorption spectrum based on the magnitude of the photocurrent. In addition, the monochromatic light of a specific wavelength is respectively transmitted through the standard solution and the solution to be tested, and the absorbance is compared, which can be quantitatively analyzed.

[Note]: Table 2 and Table 3 are for describing the sample to be tested: for example, the photocurrent background of the chlorophyll concentration and the background value of the photocurrent of the fluorescent absorption portion.

[Conclusion]: Compared with the conventional colorimetric tube device, it can not measure in the dark room and cause the noise due to the scattering of the light source. These two factors will make the sample of the sample such as chlorophyll measured. The photocurrent has a large value. Under the previous two factors, the design of the colorimetric tube according to the novel component of the present invention can be measured in the darkroom, eliminating 60 Hz electronic noise interference, and under the advantage of the concentrated light source, the photocurrent background value can be The control is below 0.01uA, and the researchers have accurate data results based on the absorption current spectrum.

Although the present invention has been described with reference to the embodiments, the present invention is not limited by the detailed description thereof. Alternatives and modifications are suggested in the foregoing description, and other alternatives and modifications will be apparent to those skilled in the art. In particular, all combinations of components that are substantially identical to the invention can achieve substantially the same results as the present invention without departing from the spirit of the invention. Therefore, all such alternatives and modifications are intended to be within the scope of the invention as defined by the appended claims and their equivalents.

2‧‧‧ colorimetric tube set

21‧‧‧Light emitter

22‧‧‧Test samples

23‧‧‧Optical Receiver

26‧‧‧ colorimetric tube

W1‧‧‧ first wall

W2‧‧‧ second wall

W3‧‧‧ third wall

D1‧‧‧Lighting aperture of light emitter

D2‧‧‧Lighting aperture of optical receiver

D‧‧‧Between the first wall and the second wall

D21‧‧‧ diameter of light emitter

Claims (9)

A colorimetric tube device is constructed for a plurality of tube walls, and the colorimetric tube device is configured for loading: a light emitter disposed in a first tube wall, and one of the light emitters has a light emitting outer edge Not exposed to the first tube wall; a light receiver disposed in a second tube wall, and one of the light receivers is not exposed to the second tube wall; and a sample to be tested is loaded In a colorimetric tube, the colorimetric tube is disposed on a third tube wall connected between the first tube wall and the second tube wall, wherein a monochromatic light emitted by the light emitter passes through the When the sample is to be tested, the absorbance of the light to be detected by the sample to be tested is measured by the light receiver in a state parallel to the light emitter. The colorimetric tube device of claim 1, wherein the light emitter is a light emitting diode, the light receiver is a photodiode, and the sample to be tested is a concentration solution. The colorimetric tube device of claim 1, wherein the absorbance is used to determine a photocurrent. The colorimetric tube set of claim 1, wherein the tube walls are made of an opaque material. The colorimetric tube device of claim 1, wherein the colorimetric tube device further comprises a fluorescent receiver, and the fluorescent receiver is disposed under the sample to be tested and the monochrome The light is in a vertical state and one of the light receiving edges of the fluorescent receiver is not exposed to the third tube wall. The colorimetric tube device of claim 1, wherein one of the light receiving apertures d2/the distance between the first tube wall and the second tube wall is less than tan 10°. The colorimetric tube set according to claim 1, further comprising a fluorescent receiver disposed in a fifth tube wall, one of the fluorescent receivers being connected to the optical aperture d2/the fluorescent receiver A vertical distance L spaced from the monochromatic light is less than tan 20°. The colorimetric tube device of claim 1, wherein the light emitting aperture d1 of the light emitter is not greater than the diameter D21/2 of the light emitter. The colorimetric tube device of claim 5, wherein the light emitter and the positive and negative electrodes of the fluorescent receiver are externally connected to a printed circuit board through a hole of a cover case.