Current sensors

From
Technique: Current sensors


ReusabilityReversible
Tools: Soldering irons
Parts: Resistors, Capacitors, Inductors, Printed circuit boards, Solder
Techniques: Soldering

Introduction

In electrical engineering, current sensing is any one of several techniques used to measure electric current. The measurement of current ranges from picoamps to tens of thousands of amperes. The selection of a current sensing method depends on requirements such as magnitude, accuracy, bandwidth, robustness, cost, isolation or size. The current value may be directly displayed by an instrument, or converted to digital form for use by a monitoring or control system.

Current sensing techniques include shunt resistor, current transformers and Rogowski coils, magnetic-field based transducers and others.

Challenges

Approaches

References