Optimal design of optical length in low turbidity measurement system with wavelength 1310 nm and 1550 nm

2014 ◽  
Author(s):  
Hui-bin Cao ◽  
Jian-guo Liu ◽  
Hua-qiao Gui ◽  
Jie Wang ◽  
Huan-qin Wang
2011 ◽  
pp. 289-295 ◽  
Author(s):  
Walter Hein ◽  
Hans Bauer ◽  
Florian Emerstorfer

Based on laboratory trials on the optimal flocculating point, in which the variation of this command variable of the juice purification was demonstrated, a prototype for the automated determination was constructed. A measurement system, which is operated in the bypass of the industrial production, is used for an automatic stepwise carbonatation of main liming juice. Starting at pH = 11.2 carbonatation gas is injected to bring down the pH to 10.4 in 0.1 or 0.2 pH units per step. After every pH step, the sedimentation behavior of the juice is characterized by means of a turbidity measurement after a clarification time of 3.5 min. With the function of turbidity versus pH value the optimal end point of the1st carbonatation can be determined. All in all an analysis takes approximately 60 min. Afterwards, an automated cleaning step takes place. For the prototype, the control of every step as well as the interpretation of the results is carried out with a personal computer. Based on the good experiences a so-called industrial version of this measurement system was constructed.


2015 ◽  
Vol 105 (01-02) ◽  
pp. 72-77
Author(s):  
M. Fleßner ◽  
B. Galovskyi ◽  
T. Hausotte ◽  
A. Loderer

Generative Fertigungsverfahren erlauben die wirtschaftliche Fertigung auch kleiner Losgrößen. Um diesen Vorteil durch eine gute Qualität zu sichern, wird eine Messtechnik entwickelt, welche die Kontrolle des Werkstücks schon während des Bauprozesses ermöglicht. Für eine optimale Auslegung der Messtechnik wird ein Vorgehen zur Genauigkeitsanalyse am Beispiel eines selektiven Lasersinterprozesses durchgeführt. Darüber hinaus werden die auftretenden systematischen Abweichungen untersucht.   Generative manufacturing processes allow an economical production of small batch sizes. In order to ensure this advantage by good quality, a measurement system is in development which is able to monitor the workpiece during the manufacturing process. For an optimal design of the measurement system, an approach is presented for the evaluation of the accuracy on the example of a selective laser sintering process, followed by an analysis of the detected systematical deviations.


2015 ◽  
Vol 73 ◽  
pp. 44-49 ◽  
Author(s):  
Yixin Yang ◽  
Huanqin Wang ◽  
Yangyang Cao ◽  
Huaqiao Gui ◽  
Jianguo Liu ◽  
...  

2009 ◽  
Vol 197 (2) ◽  
pp. 250-259 ◽  
Author(s):  
Kuanfang Ren ◽  
Feng Xu ◽  
Xiaoshu Cai ◽  
Jean-Marc Dorey

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