German PICOTRONIK sensors PICOTRONIK models PICOTRONIK prices

PICOTRONIK sensors are a general term for sensors designed to detect objects without physical contact, replacing contact-based detection methods such as limit switches. They convert information about an object's movement and presence into electrical signals. Detection methods that convert to electrical signals include those utilizing eddy currents generated in the metallic body of the detection object due to electromagnetic induction, those detecting capacitance changes in the electrical signal caused by the approach of the detected object, and those using reed and guide switches.

PICOTRONIK sensor basic principles

Vision sensors capture light from an entire image using thousands of pixels. Image clarity and detail are typically measured by resolution, expressed in pixel count. Some vision sensors provided by Banner Engineering Company can capture 130 ten thousand pixels. Therefore, regardless of whether the target is meters or centimeters away, the sensor can "see" highly detailed target images. After capturing the image, the vision sensor compares it with reference images stored in memory to perform analysis. For example, if a vision sensor is configured to identify a machine part with eight correctly inserted bolts, the sensor knows to reject parts with only seven bolts or misaligned bolts. Furthermore, regardless of the part's position within the field of view or whether the part rotates within a 360 degree range, the vision sensor can make a judgment.

PICOTRONIK sensor application areas

The low cost and ease of use of vision sensors have attracted machine designers and process engineers to integrate them into various applications that previously relied on manual labor, multiple photoelectric sensors, or no inspection at all. Industrial applications of vision sensors include inspection, gauging, measurement, orientation, defect detection, and sorting. The following are just some application examples: In automotive assembly plants, inspecting whether the bead of adhesive applied by robots to door frames is continuous and has the correct width. In bottling plants, verifying that bottle caps are correctly sealed, fill levels are correct, and no foreign matter has fallen into the bottles before capping. On packaging lines, ensuring the correct packaging labels are affixed in the correct positions. On pharmaceutical packaging lines, inspecting blister packs of aspirin tablets for broken or missing tablets. At metal stamping companies, inspecting stamped parts at a rate of over 150 pieces per minute, which is more than 13 times faster than manual inspection.

PICOTRONIK sensor classification

Photosensitive sensors are among the most common types of vision sensors. They come in many varieties, mainly including: phototubes, photomultiplier tubes, photoresistors, phototransistors, solar cells, infrared sensors, ultraviolet sensors, fiber-optic photoelectric sensors, color sensors, CCD, and CMOS image sensors. Optical sensors are among the most produced and widely used sensors, playing a very important role in automatic control and non-electrical electrical measurement technology. The simplest photosensitive sensor is the photoresistor, which generates current when photons strike the junction. Sensors should be packaged in anti-static bags. Avoid using them in humid environments, and pay attention to surface damage and contamination levels, as these will affect the photocurrent.

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