Title :
An arbitrary power law device based on integrators
Author :
Kiranon, Wiwat ; Loescharataramdee, Chariya ; Petchakit, Wijittra ; Sangpisit, Wipa
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
fDate :
12/1/2000 12:00:00 AM
Abstract :
A new simple arbitrary power law device implemented from integrators along with the sample-and-hold technique is presented. The number of the integrators indicates the index of the power law. Part of the integrators determine an appropriate time interval to be used to control the sample-and-hold circuit to extract the correct output. To test the validity and value of the proposed method, numerous power law functions have been experimented. The experimental results show very close agreement with the theoretical analysis. In addition, the measurement output, possibly as large as a few volts, is obtained with extreme precision
Keywords :
analogue processing circuits; dividing circuits; integrating circuits; sample and hold circuits; arbitrary power law device; integrators; measurement output; power law functions; sample-and-hold circuit; sample-and-hold technique; time interval; Circuit synthesis; Circuit testing; Demodulation; Instrumentation and measurement; Integrated circuit measurements; Operational amplifiers; Phase shift keying; Signal processing; Transconductance; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
