bridges to measure capacitance
Abstract- The development of De-Sauty’s bridge for capacitance measurement has been followed by various modifications and improvements in the original circuit. Lately Schering bridge and transformer ratio arm bridge have been used for measurement of capacitance in a circuit.Today there is instrumentation available that makes use of these bridges in real life such as that can measure the quality of electrical insulation at power frequency as well as in touch-sensitive sensors. This paper presents an understanding of bridges to measure capacitance, their real life implementation , various errors in measurement and the required cautions to avoid errors.
I.
INTRODUCTION
It is well established that capacitor is the element that can store charge and its ability to store charge can be measured in terms of capacitance in farads.
We need capacitor in our daily life such as to remove the undesired DC component in amplifier output, to improve power factor of generated power in transmission systems as well as to store energy in a camera flash circuit. A capacitor forms an important part of various real life applicatiions such there is a strong need for the availability of instrumentation that can measure capacitance.
There has been development of various bridges to measure capacitance and it has been followed by various modifications and improvements in the original circuit.
II.
REVIEW OF LITERATURE
Under the review of literature,we will just take a review about what research has been done in the field of capacitance measurement using AC bridges in the past by referring to certain research articles.
1. The Research on Measuring Capacitance with
Schering Bridge
By XU Chong,DING Chun-tian,SHI Wei-chao
In the research on measurement of capacitance with
Schering bridge,it was observed that the Schering bridge is self-assembly bridge that its experimental
apparatus is selected by the experiment need.Using the Schering
I.
INTRODUCTION
It is well established that capacitor is the element that can store charge and its ability to store charge can be measured in terms of capacitance in farads.
We need capacitor in our daily life such as to remove the undesired DC component in amplifier output, to improve power factor of generated power in transmission systems as well as to store energy in a camera flash circuit. A capacitor forms an important part of various real life applicatiions such there is a strong need for the availability of instrumentation that can measure capacitance.
There has been development of various bridges to measure capacitance and it has been followed by various modifications and improvements in the original circuit.
II.
REVIEW OF LITERATURE
Under the review of literature,we will just take a review about what research has been done in the field of capacitance measurement using AC bridges in the past by referring to certain research articles.
1. The Research on Measuring Capacitance with
Schering Bridge
By XU Chong,DING Chun-tian,SHI Wei-chao
In the research on measurement of capacitance with
Schering bridge,it was observed that the Schering bridge is self-assembly bridge that its experimental
apparatus is selected by the experiment need.Using the Schering
References: [1]. Hall,Henry P.,”Instrumentation and Measurement”, IEEE Transactions, Volume: 19 , Issue: 4, Page(s): 308 311 ,Nov. 1970