A microprocessor-based switched-battery capacitance meter

Author

Mahmud, Syed Masud ; Rusek, Andrzej

Author_Institution

Sch. of Eng. & Comput. Sci., Oakland Univ., Rochester, MI, USA

Volume

37

Issue

2

fYear

1988

fDate

6/1/1988 12:00:00 AM

Firstpage

191

Lastpage

194

Abstract

A microprocessor-based, switched-battery capacitance meter has been developed. It consists of an analog part, based on a previously designed capacitance meter, and a digital part in which a microprocessor and a timer perform the main functions. The capacitance is measured indirectly by means of a time constant measurement. Two phases of the measurement process are involved in measuring the capacitance. The first phase, when a capacitor is charged, is based on the software counter-timer measurements. The second phase, when the capacitor is discharged, requires a hardware timer controlled by the microprocessor. The digital hardware reflects a different approach than used for the previous construction

Keywords

capacitance measurement; computerised instrumentation; digital instrumentation; hardware timer; microprocessor; software counter-timer measurements; switched-battery capacitance meter; time constant measurement; Battery charge measurement; Capacitance; Capacitors; Clocks; Counting circuits; Flip-flops; Microprocessors; Phase measurement; Time measurement; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.6050

Filename

6050