Title :
A new method for low-capacitance probing
Author :
Carlosena, Alfonso ; Cabeza, Rafael ; Serrano, Luis
Author_Institution :
Dept. of Autom., Electron. e Ingineria de Sistemas, Univ. Publica de Navarra, Spain
fDate :
6/1/1993 12:00:00 AM
Abstract :
A method is suggested for cancelling the input capacitance of instruments and probes used in measurements. This approach is proposed as an alternative to conventional attenuating passive and active probes. The idea is demonstrated with a practical device that is able to nullify the parasitic capacitance to less than 2 pF without introducing signal attenuation
Keywords :
capacitors; compensation; electric sensing devices; probes; 2 pF; active probes; low-capacitance probing; parasitic capacitance; passive probes; Actuators; Bridge circuits; Circuit simulation; Digital circuits; Hardware; Optical device fabrication; Piezoresistance; Silicon; Temperature distribution; Temperature sensors;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
