Sensors and Sensor Circuit Design Course Syllabus

This hands-on, simulation-rich course provides a comprehensive introduction to sensor circuit design, emphasizing practical application through LTspice simulations. Over five weeks, learners will build foundational skills in analog and digital sensor interfacing, signal conditioning, and circuit analysis. With approximately 3–5 hours of work per module, the course balances theory and simulation to prepare engineers for real-world electronics challenges.

Module 1: What Are Sensors?

Estimated time: 4 hours

• Basic sensor principles and physical transduction mechanisms
• Classification of sensors: active vs passive
• Analog vs digital sensor outputs
• Signal interpretation exercises using real-world sensor examples

Module 2: Voltage Divider Circuits & Simulations

Estimated time: 5 hours

• Review of Ohm’s Law and voltage division principles
• Modeling resistive sensors (thermistors, LDRs) in circuits
• Designing voltage divider networks for sensor interfacing
• LTspice simulation of resistive sensor behavior

Module 3: Current-Based Sensor Circuits

Estimated time: 5 hours

• Understanding current-based sensors: Hall effect sensors and photodiodes
• Op-amp configurations for current sensing
• Simulation of transimpedance amplifiers and signal conditioning circuits

Module 4: Digital Sensor Output Circuits

Estimated time: 4 hours

• Interfacing with digital output sensors
• Use of pull-up resistors and logic-level translation
• Schmitt triggers for noise immunity and signal conditioning

Module 5: Capstone Project

Estimated time: 6 hours

• Integration of multiple sensor types in a single system
• Design and simulation of a multi-sensor application using LTspice
• Troubleshooting signal pathways and optimizing performance

Module 6: Final Project

Estimated time: 6 hours

• Deliverable 1: Complete schematic design of a sensor interface circuit
• Deliverable 2: LTspice simulation demonstrating correct operation
• Deliverable 3: Written analysis of sensor signal behavior and circuit response

Prerequisites

• Familiarity with basic electronics concepts (voltage, current, resistance)
• Understanding of Ohm’s Law and Kirchhoff’s laws
• Basic experience with circuit simulation tools (helpful but not required)

What You'll Be Able to Do After

• Explain how different sensors convert physical phenomena into electrical signals
• Design and simulate sensor interface circuits using LTspice
• Interpret and condition voltage and current signals from analog and digital sensors
• Integrate multiple sensors into a unified circuit design
• Apply practical analog circuit techniques to real-world sensing problems