Three options come to mind for determining which contactless sensor to use when measuring objects at a distance: photoelectric sensors, ultrasonic sensors, and radar detection. Understanding the key differences among these types of technologies and how they work can help you decide which technology will work best for your application.
Photoelectric sensors have been around for more than 50 years and are used in everyday things – from garage door openers to highly automated assembly lines that produce the food we eat and the cars we drive.
When choosing what sensor to use in different applications, it is important to first look at how they operate. Capacitive sensors generate an electrical field that can detect various liquids or other materials, such as glass, wood, paper, ceramic, and more at a close.
Supply chain and labor shortages are putting extra pressure on automation solutions to keep manufacturing lines running. Even though sensors are designed to work in harsh environments, one good knock can put a sensor out of alignment or even out of condition.
Manufacturers love established assembly line technologies not only because they produce expected results. But, also because they occasionally provide an unexpected benefit.
Whether fully automatic, semiautomatic or manual, almost every assembly system has some type of sensor for inspection, error-proofing or production monitoring. Thanks to new technologies, sensors are becoming smaller, more robust, more accurate and easier to integrate.