Introduction

This course is designed to understand basics of sensors.

Upon completion of Sensors you should be able to:

• Describe advantages, disadvantages, and applications of limit switches, photoelectric sensors, inductive sensors, capacitive sensors, and ultrasonic sensors

• Describe design and operating principles of mechanical limit switches
• Identify components of International and North American mechanical limit switches

• Describe design and operating principles of inductive, capacitive, ultrasonic, and photoelectric sensors and describe differences and similarities

• Apply correction factors where appropriate to proximity sensors

• Identify the various scan techniques of photoelectric sensors

• Identify ten categories of inductive sensors and sensors in each category

• Describe the effects of dielectric constant on capacitive proximity sensors

• Identify environmental influences on ultrasonic sensors

• Identify types of ultrasonic sensors that require manual adjustment, can be used with SONPROG, and require the use of a signal evaluator

• Describe the difference between light operate and dark operate modes of a photoelectric sensor

• Describe the use of fiber optics and laser technology used in Siemens photoelectric sensors

• Select the type of sensor best suited for a particular application based on material, sensing distance, and sensor load requirements