Keithley Instruments, Inc.

Michael P Minneman

John G Banaska

Kenneth A Reindel

David J Kruszewski

Robert G Spinks

Ks Bhaskar

Bob Spinks

Andy J Creque

Michael Atwell

Gary K Bish

David J Howarth

An integrated modular measurement system includes a universal module which is operable to receive measurement data from one or more measurement sensors, convert the measurement data into a value that represents a characteristic being measured and indicate the value to a user in a plurality of signal formats. An input module is coupled to the universal module and is operable to house one or more measurement sensors. The universal module and input module together operate to provide versatile measurement acquisition. A custom calibrated sensor module includes one or more sensors and a memory associated with and local to the one or more sensors. The memory contains calibration information which is uniquely associated with the sensors. In taking a measurement, the calibration information associated with the sensor taking the measurement is accessible for conversion instructions to thereby improve conversion accuracy. A method of interfacing a universal module to a plurality of measurement sensors includes coupling one of the measurement sensors to the universal module and identifying the measurement sensor being used. In addition, the universal module is configured in response to the identification of the measurement sensor to thereby facilitate accurate and versatile measurement acquisition for a plurality of measurement sensors.

Integrated modular measurement system having configurable firmware

A current in a circuit is measured without breaking the circuit. A relatively low resistance element in the circuit such as a component lead is chosen. A current is forced through the element and the voltage drop measured. Another current is forced through the element and the voltage drop measured. The values of these currents and voltages are used to determine the original current in the circuit.

In-circuit current measurement

Electronic measuring/monitoring instrument

Growing community of inventors

Hudson, OH, United States of America

Michael P Minneman