A simple circuit for temperature compensation of membrane-covered electrodes for the determination of oxygen

1966 ◽  
Vol 8 (4) ◽  
pp. 625-629 ◽  
Author(s):  
G. Morisi ◽  
G. Gualandi
Keyword(s):  
Temperature Compensation ◽  
Simple Circuit ◽  
Covered Electrodes

Temperature compensation for determination of moisture and reducing sugar of longan honey by near infrared spectroscopy

2017 ◽  
Vol 25 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Chalermpun Thamasopinkul ◽  
Pitiporn Ritthiruangdej ◽  
Sumaporn Kasemsumran ◽  
Thongchai Suwonsichon ◽  
Vichai Haruthaithanasan ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Temperature Compensation ◽  
Near Infrared ◽  
Sugar Content ◽  
Reducing Sugar ◽  
Sample Temperature ◽  
Calibration Model ◽  
Calibration Models

Near infrared spectra of honeys are affected by sample temperature variation, mainly due to a change in hydrogen bonding of water. The aim of this study was to develop robust and powerful calibration models which can compensate for a variation of sample temperature for the determination of moisture and reducing sugar content in honey using near infrared spectroscopy. Partial least squares regression with the aid of standard normal variate transformation was used to develop three calibration models at constant temperature (25, 35 and 45℃) and a robust calibration model with temperature compensation. All the developed models for moisture and reducing sugar content showed high performance of prediction with coefficient of determination ( r2) and residual prediction deviation values greater than 0.95 and 3.8, respectively. The results show that the temperature compensation model can be considered as a robust calibration model for near infrared determination of moisture and reducing sugar in the honey when sample temperature is varied.

Design of pH Meter Based on msp430

2013 ◽  
Vol 397-400 ◽  
pp. 936-942
Author(s):  
Jian Jun Ding ◽  
Jun Wang ◽  
Chao Sun ◽  
Yan Qun Liu ◽  
Jia Yan Shao ◽  
...  
Keyword(s):  
Data Collection ◽  
Temperature Compensation ◽  
Ph Value ◽  
Accurate Determination ◽  
Input Circuit ◽  
Automatic Temperature ◽  
High Impedance ◽  
Collection Data ◽  
Effects Of Temperature

The pH meter based on msp430 has designed in this paper, and which can accomplish all kinds of functions, for instance, data collection, data analysis, local control and telecommunication. In order to improve the accuracy of data collection we use dual high impedance differential input circuit. And choose temperature transducer DS18B20 which has a function of automatic temperature compensation to reduce the effects of temperature fluctuation on measurement. So it can achieve accurate determination of the pH value of the material.

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