AC Bridges and Reactance Measurement

Measuring electrical properties accurately is a cornerstone of instrumentation and circuit design. This course introduces you to the foundational principles of AC bridges, enabling you to determine unknown resistance, capacitance, and inductance with precision. You will start by mastering key terminology, basic AC circuit theory, and phasor concepts before diving into specific bridge configurations. Through clear, written explanations, you will learn how to balance bridge equations and analyze measurement errors. What you'll learn: Understand the fundamental theory of AC bridge balance and phasor diagrams; Master Maxwell's bridge and Hay's bridge for measuring inductance; Configure Schering and De Sauty bridges to determine capacitance and dielectric loss; Calculate bridge sensitivity and analyze the sources of measurement errors; Apply modern digital impedance measurement concepts alongside traditional methods. This structured text-only course guides you step-by-step from core electrical concepts to complex balancing equations and practical calculation workflows. This course is designed for beginners, engineering students, and hobbyists with a basic understanding of algebra and introductory physics. Start building your foundation in electrical instrumentation and master the math behind AC bridges today.