JPH04310848A - Spectral measuring device - Google Patents

Abstract

PURPOSE:To enable raw unhulled rice grains to be subjected to spectral analysis by cutting upper and lower edge portions of unhulled rice grain which is retained by a placement portion with a blade which moves horizontally and then emitting a flux of rays for measurement. CONSTITUTION:Upper and lower edges of a sample S which is separated and placed for each placement portion 9 are cut by traveling in horizontal direction along the placement portion 9 of upper and lower pair of blades 10C and 11C. The upper and lower cutting pieces are eliminated from the placement portion 9 by traveling in horizontal direction along the placement portion 9 of exclusion portions 10D and 11D as in the blade 10C, 10C and the sample S whose upper and lower edges are cut remains on the placement portion 9. A flux of light for measurement is emitted from a light-projecting portion 2 at the upper portion of the placement portion 9. The flux of light passing through the sample S is received by light-reception portion 3 which are provided separately at a bottom portion of the placement portion 9, thus enabling constituent analysis to be made immediately.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides a spectroscopy system that is provided with a light projecting section that irradiates a beam of light for measurement onto a sample supported by a support device, and a light receiving section that receives the transmitted beam of light that passes through the sample. Concerning a measuring device.

0002

2. Description of the Related Art There is a spectrometer of this type in which the supporting device is provided only with a mounting portion on which, for example, dried and crushed grain is placed as a sample (Japanese Patent Publication No. 1-49
No. 890), it is used for component analysis using near-infrared spectroscopy technology of rice, which shows a high correlation between protein/amylose content and taste.

0003

[Problems to be Solved by the Invention] However, with the above-mentioned conventional technology, not only does it take time to prepare the sample, but also the analysis results are inaccurate due to variations in the thickness and density of the sample for raw grains. The drawback was that it lacked quality. For example, when analyzing the components of rice, preparing a sample involves multiple steps such as drying the unhulled rice, hulling, polishing, and crushing, and requires a long time of over 30 hours, which has the disadvantage of being complicated. Moreover, since it goes through a drying process, it also has the disadvantage that the moisture content cannot be detected accurately. On the other hand, in order to meet the diversification of consumer tastes and the demand for good-tasting rice, it is necessary to immediately classify raw paddy collected after harvest according to quality before entering the drying process. This is because if raw paddy is not dried within one day after harvesting, its quality will rapidly deteriorate. However, when spectroscopically analyzing unhulled rice through the rice husks, the amount of transmitted light decreases, making it impossible to perform accurate analysis.Therefore, there is no measuring device that can perform component analysis in a short period of time to enable classification in such a short period of time. Therefore, there was a desire for a device that would make this possible. An object of the present invention is to eliminate the above-mentioned conventional drawbacks.

0004

[Means for Solving the Problems] In order to achieve this object, the spectrometer according to the present invention has a characteristic configuration including: a light projection unit that irradiates a measurement light beam onto a sample supported by a support device;
A spectroscopic measuring device is provided with a light receiving section that receives a transmitted light beam that passes through the sample, and the support device is configured to include a mounting section for separately mounting a plurality of samples, and a mounting section for separately mounting a plurality of samples. A pair of upper and lower blades that cut the upper and lower ends of the sample by moving laterally along the mounting part in a placed state, and a removing part which removes the upper and lower cut pieces cut by the blades by moving laterally as well. The light projecting section is arranged above the mounting section, and the light receiving section is arranged at the bottom of each of the mounting sections.

[0005]

[Operation] The upper and lower ends of the samples separately placed on the mounting section are cut by the horizontal movement of the pair of upper and lower blades along the mounting section. The upper and lower cut pieces are removed from the receiver by lateral movement of the removal section along the receiver, similar to the blade, and the sample with the upper and lower ends cut remains on the receiver. A beam of light for measurement is irradiated onto each sample from the light projecting section above the mounting section, and the beam of light that has passed through the sample is sent to the light receiving section separately provided at the bottom of the mounting section. You receive it.

[0006]

[Effects of the Invention] Therefore, according to the present invention, the components of the sample after harvest can be analyzed directly without any processing steps, which simplifies the work process and enables accurate measurements in a short time. Not only has it become possible to provide a spectroscopic measurement device that allows It is now possible to provide a measuring device that allows classification according to quality.

[0007]

[Example] Sample S of unhulled rice, which is an example of the present invention, is shown below.
A spectroscopic measurement device will be explained below. As shown in FIGS. 1, 2, and 3, the spectrometer includes a support device 1 that supports a sample S, and a light projector 2 that irradiates the sample S with a beam of light for measurement from above the support device 1. , an optical fiber 3 as a light-receiving unit that collects a beam of light that has passed through the sample S from below the support device 1, a spectrometer 4 that analyzes and outputs the components of the sample S based on the beam of light that has passed through the sample S, It consists of a computer 5 etc. that statistically processes the results.

The support device 1 includes a mounting section 9 for separating and mounting the sample S one by one, and a mounting section 9 for separating and mounting the sample S one by one. a pair of upper and lower blades 10C, 11C that cut the upper and lower ends of the blade 10C;
, 11C, which removes the upper and lower cut pieces S' cut by the upper and lower cut pieces S' by lateral movement.

In detail, the upper plate 6 is provided with a plurality of input holes 6A for separating the sample S one by one, and the sample S is moved laterally to a position corresponding to the input holes 6A. A holding hole 7A that prevents this from occurring and a removal hole 7B that drops and removes the upper cut piece S' of the sample S adjacent to the holding hole 7A.
The middle plate 7, which is formed with , and the bottom plate 8, which is formed with removal holes 8B for dropping and removing both the upper and lower cut pieces S' of the sample S, are placed on top of each other at positions corresponding to the removal holes 7B. Sliding plates 10 and 11 are provided between the top plate 6 and the middle plate 7, and between the middle plate 7 and the bottom plate 8, and are movable laterally.
are arranged. The sliding plates 10 and 11 have openings 10A and 11 at positions corresponding to the input opening 6A, respectively.
A is formed, and sharp blade portions are provided at peripheral portions 10C and 11C on the reciprocating side of the openings 10A and 11A. The blade portions 10C, 11C are provided on the reciprocating side of the blade portions 10C, 11C.
Opening holes 10B and 11B are formed to allow the cut pieces S' of the sample S cut at 11C to fall and be removed, and furthermore, the blade portions 10C are formed on the backward movement side as the sliding plates 10 and 11 move forward.
, 11C of the cut piece S' of the sample S
, 11B and removal holes 7B, 8B to push out the cut pieces S' to the forward movement side. One or more optical fibers 3 for condensing the beam of light transmitted through the sample S are provided in the center of the bottom plate 8 at positions corresponding to the input apertures 6A and the holding apertures 7A. The other end of this optical fiber 3 is bundled with another optical fiber 3 and guided to the spectrometer 4 as an optical fiber bundle. In other words, this spectrometer analyzes the average components of the sample S, which is separated and placed one grain at a time.

[0010] The spectroscopic device 4 separates the transmitted light beam and detects the intensity of each specific wavelength corresponding to components such as water, protein, and amylose in the endosperm, and inputs the detection output to the computer 5. By further performing averaging processing, etc., the average quality of each lot is identified.

Another embodiment of the present invention will be described below. In the previous embodiment, the sample was described as being unhulled rice, but the sample is not limited to unhulled rice, and may be any grain. The arrangement of the samples S in the support device 1 for separating and placing the samples S one by one is not limited to the previous embodiment, and may be arranged in an arbitrary matrix of M rows and N columns or in a staggered pattern. . In the previous embodiment, a supporting device in which a plurality of samples are placed on a horizontally arranged mounting section was explained, but a plurality of samples are held on a vertically arranged holding section. Good too. Although the spectroscopic device 4 is one that targets near-infrared wavelengths, it is not particularly limited and may be one that targets any wavelength. Furthermore, the configuration of the spectroscopic device 4 is not limited, and may be any configuration such as one using a prism or a diffraction grating. Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

[Figure 1] Schematic diagram of the spectrometer before measurement

[Figure 2] Schematic configuration diagram of the spectrometer during measurement

[Figure 3] Exploded perspective view of the support device

[Explanation of symbols]

1 Support device 2　　　　　　　　　　　　　 3 Light receiving part 9 Placement section 10C blade 11C blade 10D Exclusion part 11D Exclusion part S Sample S’ Cut piece

Claims (3)

[Claims] Claim 1: A sample (S) supported by a support device (1).
), and a light receiving part (3) that receives the transmitted light beam that passes through the sample (S).
A spectrometer comprising: a support device (1);
), and a mounting part (
9), and the said mounting part (9) in the state of being placed on the said mounting part (9).
A pair of upper and lower blades (10C) and (11C) that cut the upper and lower ends of the sample (S) by moving laterally along 9), and the upper and lower cut pieces cut by the blades (10C) and (11C). (S') is configured with removal parts (10D) and (11D) that also remove the light emitting part (S') by lateral movement, and the light emitting part (2)
is placed above the placement portion (9), and the light receiving portion (3) is placed above the placement portion (9).
are arranged at the bottom of each of the mounting portions (9). Claim 2: A sample (S) supported by a support device (1).
), and a light receiving part (3) that receives the transmitted light beam that passes through the sample (S).
A spectrometer comprising: a support device (1);
) and a holding part (
9) and the holding part (9) in a state of being held in the holding part (9).
blades (10C) and (11C) that cut both ends of the sample (S) by moving in the direction along
0C) and (11C), which remove the cut pieces (S') by moving in the direction along the holding part (9). A spectroscopic measuring device in which a light section (2) is arranged on one side of the holding section (9), and a light receiving section (3) is arranged on the other side of the mounting section (9). [Claim 3] Claim 1, wherein the sample (S) is a grain.
Or the spectrometer according to 2.