Improved Electrodynamic Particle-Size Sorting System for Lunar Regolith

2022 ◽  
Vol 35 (1) ◽  
pp. 04021115
Author(s):  
Hiroyuki Kawamoto ◽  
Hirofumi Morooka ◽  
Hiroyuki Nozaki
Keyword(s):  
Particle Size ◽  
Lunar Regolith ◽  
Size Sorting ◽  
Sorting System

Particle-size sorting system of lunar regolith using electrostatic traveling wave

2017 ◽  
Vol 89 ◽  
pp. 69-76 ◽  
Author(s):  
M. Adachi ◽  
H. Moroka ◽  
H. Kawamoto ◽  
S. Wakabayashi ◽  
T. Hoshino
Keyword(s):  
Particle Size ◽  
Traveling Wave ◽  
Lunar Regolith ◽  
Size Sorting ◽  
Sorting System

Electrostatic Size-Sorting of Lunar Regolith Using Electrostatic Traveling-Wave

2017 ◽  
Vol 2017.15 (0) ◽  
pp. A04
Author(s):  
Hiroyuki NOZAKI ◽  
Hirofumi MOROOKA ◽  
Masato ADACHI ◽  
Hiroyuki KAWAMOTO
Keyword(s):  
Traveling Wave ◽  
Lunar Regolith ◽  
Size Sorting

Size-Sorting and Measurement System of Safety Belt Pin Based on Machine Vision

2015 ◽  
Vol 741 ◽  
pp. 709-713 ◽  
Author(s):  
Li Gang Cao ◽  
Ming Xiang ◽  
Hao Feng ◽  
Yong Yu Wang
Keyword(s):  
Machine Vision ◽  
Measurement Accuracy ◽  
Image Process ◽  
Control Logic ◽  
Safety Belt ◽  
Repeatability Error ◽  
Improve Measurement ◽  
Size Sorting ◽  
Sorting System ◽  
Telecentric Lens

To improve measurement accuracy of safety belt pin, the size-sorting system which mainly includes a machine vision subsystem and a driving subsystem, is researched. The machine vision subsystem includes a industry camera, a double telecentric lens and a backlight. Image process steps that have sub-pixel accuracy are presented. The driving subsystem is designed with Atmega128L MCU. The state machine is designed for safety pin control logic. The two sub systems communicate with RS232 serial port. The test shows that the system has a maximum accuracy error of 0.05mm, repeatability error of 0.013mm.

A mineralogical and geochemical study of turbidite sandstones and interbedded shales, Mam Tor, Derbyshire, UK

Clay Minerals ◽  
1981 ◽  
Vol 16 (4) ◽  
pp. 333-345 ◽  
Author(s):  
D.A. Spears ◽  
M.A. Amin
Keyword(s):  
Particle Size ◽  
Grain Size ◽  
Clay Mineral ◽  
Mixed Layer ◽  
Clay Mineralogy ◽  
Lateral Variation ◽  
Size Fractions ◽  
Shore Line ◽  
Geochemical Study ◽  
Size Sorting

AbstractEleven shales and fourteen turbidite sandstones from the Mam Tor Beds were analysed chemically and by XRD. The ratio of kaolinite to illite plus mixed-layer clay was higher in the sandstones than in the shales, size fractions demonstrating that this ratio decreased as the grain size decreased. Shales more basinal in character than those of the Mam Tor Beds contain more illite and mixed-layer clay and less kaolinite and it is suggested that there was a lateral variation in clay mineralogy with distance from the shore line due to particle size sorting and that the character of the clay mineral fraction was retained as the turbidity current transported sediment from a nearshore environment deeper into the basin. Support for this model was obtained from the geochemistry which showed that the sandstone matrix differed compositionally from the shales. Systematic variations occurred in the turbidite sandstones but not in the shales which are therefore considered to be non-turbiditic. Only minor mineralogical changes appear to have occurred during diagenesis.

Vibratory particle size sorting in multi-component systems

1991 ◽  
Vol 66 (2) ◽  
pp. 149-160 ◽  
Author(s):  
A.D. Rosato ◽  
Y. Lan ◽  
D.T. Wang
Keyword(s):  
Particle Size ◽  
Component Systems ◽  
Size Sorting
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