Temperature Control Based on PID for Colloidal Crystals Investigation

Author

Yang, Hao ; Gao, Shangqi ; Sun, Zhibin ; Jiang, Yuanda ; Zhai, Guangjie ; Li, Ming

Author_Institution

Center for Space Sci. & Appl. Res., Chinese Acad. of Sci., Beijing, China

Volume

2

fYear

2010

fDate

16-17 Dec. 2010

Firstpage

51

Lastpage

54

Abstract

Kossel-line diffraction method is an important way to measure the structure of crystals. Colloidal crystal is one of the hotspots on the condensed physics research. In order to obtain the diffraction image, a 473nm wavelength laser is used to irradiate samples, and then the Kossel-line image of sample is projected onto the translucent screen and recorded by charge coupled device (CCD) camera. The influence of temperature changing is one of the important crystallization research contents. A proportional-integral-derivative (PID) algorithm based on pulse-width modulation (PWM) is proposed to control the temperature of the sample solution.

Keywords

CCD image sensors; X-ray diffraction; colloidal crystals; crystallisation; image processing; pulse width modulation; temperature control; three-term control; Kossel line diffraction method; PID; charge coupled device camera; colloidal crystal; condensed physics; diffraction image; image sample; pulse width modulation; temperature control; translucent screen; Colloidal crystals; Correlation; Crystallization; Diffraction; Optical diffraction; Temperature control; X-ray diffraction; PID; PWM; colloidal crystal; system identification; temperature control;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Systems (GCIS), 2010 Second WRI Global Congress on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-9247-3

Type

conf

DOI

10.1109/GCIS.2010.232

Filename

5708676