JPS6384559U

JPS6384559U -

Info

Publication number: JPS6384559U
Application number: JP17833286U
Authority: JP
Priority date: 1986-11-21
Filing date: 1986-11-21
Publication date: 1988-06-02

Description

[Brief explanation of the drawing]

第１〜６図はこの考案の実施例を示し、第１図
は穀粒品質判定装置の平面図、第２図は穀粒品質
判定装置の側面図、第３図はヘツドの概略説明図
、第４〜６図は反射光量と透過光量とを検出し胴
割れ粒や整粒を判定するまでの経過を示した光量
と時間との関係図である。第７図は従来のヘツド
の概略説明図である。第８図は玄米が整粒である
場合の光量と時間との関係を示す図である。第９
図は玄米が胴割れ粒である場合の光量と時間との
関係を示す図である。第１０図は検出時期と各光
センサとの位置のずれにより誤判定した場合の光
量と時間との関係を示す図である。第１１図は玄
米が試料用孔において適正位置に無い場合の光量
と時間との関係を示す図である。図において、２は穀粒品質判定装置、４は円板
、８はヘツド、１０は制御部、１２は試料用孔、
１６はピークホールド回路、２２は光源、２６は
前部光センサ、そして２８は後部光センサである
。 Figures 1 to 6 show examples of this invention, Figure 1 is a plan view of the grain quality determination device, Figure 2 is a side view of the grain quality determination device, Figure 3 is a schematic explanatory diagram of the head, 4 to 6 are graphs showing the relationship between the amount of light and time, showing the progress from detecting the amount of reflected light and the amount of transmitted light to determining cracked grains and grain size adjustment. FIG. 7 is a schematic explanatory diagram of a conventional head. FIG. 8 is a diagram showing the relationship between the amount of light and time when brown rice is grain-sized. 9th
The figure shows the relationship between the amount of light and time when the brown rice is split grain. FIG. 10 is a diagram showing the relationship between the amount of light and time when an erroneous determination is made due to a deviation in the detection timing and the position of each optical sensor. FIG. 11 is a diagram showing the relationship between the amount of light and time when brown rice is not in the proper position in the sample hole. In the figure, 2 is a grain quality determination device, 4 is a disk, 8 is a head, 10 is a control unit, 12 is a sample hole,
16 is a peak hold circuit, 22 is a light source, 26 is a front light sensor, and 28 is a rear light sensor.

Claims

[Scope of utility model registration request]

In a grain quality determination device that irradiates light onto each grain of the sample to be transferred, detects the state of the light, and determines the quality of each grain of each sample based on the detected value, a first light detection section that detects the amount of reflected light reflected by the crack; a second light detection section that detects the amount of transmitted light that passes through the sample;
A control unit is provided that inputs light intensity signals from the first light detection unit and the second light detection unit to determine the quality of the sample, and the control unit determines the quality of the sample by inputting light intensity signals from the first light detection unit and the second light detection unit, and A peak hold circuit is provided between the first and second photodetectors and the control unit to maintain a constant maximum value of the amount of transmitted light detected by the photodetector and output these maximum values to the control unit. A grain quality determination device featuring: