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Vol. 151, No. 4, April 2013, pp. 107-112

 

Bullet

 

Development of Noise Measurements. Part 2. Random Error
 
Zenoviy KOLODIY, Bohdan STADNYK, Svyatoslav YATSYSHYN

“Lviv Polytechnic” National University, Institute of Computer Technologies,
Automation and Metrology, Bandera str. 12, Lviv, 79013, Ukraine

Tel.: +38-0322-37-50-89

E-mail: slav.yat@gmail.com

 

 

Received: 29 March 2013   /Accepted: 26 April 2013   /Published: 30 April 2013

Digital Sensors and Sensor Sysstems

 

Abstract: Research on the formation peculiarities of the random error-component while measuring electric noise has been undertaken. The parameters of interaction between the researched substance and a measuring probe including energetic and time parameters are enlightened. The latter are balanced with relaxation time, period prior to performed gauge and duration of measuring. The problems of activity / passivity of the measurement method and features of studied object reaction are under consideration. It is proved that the nature of relaxation is determined by a fluctuation-dissipation mechanism of forming electric noise of an object and consequently their undertones (thermal noise or/and 1/f noise). The followed issue is the inexactness of the summary results of repeatable measurements, and stiffness of the random error to reduction by averaging.

 

Keywords: Noise measurements, Electrical noise, Repeatable measurements, Random error, Reliability

 

 

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