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Smart Sensors
Challenge: Detecting clear bottles in a sterile environment
Solution: 12MG Series Ultrasonic Sensors
Challenge: Detecting joints at very high speeds
Solution: LA-W Series Color Sensors
Benefits: Optimal contrast and fast switching frequency of 10 kHz
Challenge: There are multiple types of medications, represented by different colors. For example, the color of the daytime cold pills is different from the color of the nighttime pills. A solution is needed to verify that all the correct pills are present in the blister pack
Solution: LW-A500 color sensor, which can easily distinguish between pills of different colors.
Challenge: Anti-reflection coating on the surface of solar wafers Some industrial targets are specially designed for red light absorption based on functional requirements. Taking solar wafers as an example, their surface is usually covered with anti-reflection coating to maximize the efficiency of sunlight absorption. This characteristic makes it difficult for traditional photoelectric sensors based on red light wavelengths to achieve stable detection.
In such application scenarios, photoelectric sensors equipped with blue LED light sources show significant advantages. Compared with red light, the absorption rate of blue light on dark surfaces is significantly lower, which means that the sensor can capture stronger reflected signal intensity. By optimizing spectral matching, blue light sensors can improve the detection reliability of dark objects by 63%-89% (based on IEC 60947-5-2 standard test data).
Challenge: Timely detection of the leading edge of moving objects on conveyors On equipment that moves products, containers, or packages, sensors are used to detect the movement or presence of these items to make critical decisions. Specifically, these applications rely on detecting the leading edge of an item as quickly and accurately as possible.
Using the ELC Series photoelectric sensors, it is possible to detect very thin or irregular objects on conveyors while reducing installation time and cost. When an object on the conveyor blocks any beam, the sensor indicates that a package has been detected and is recorded.
Challenge: Detecting white register marks on a dark background (e.g. blue)
Primary packaging has many high-speed processes where it is important to verify that the packaging is correct, which can be achieved by detecting the register mark. Detecting white register marks on a dark background (e.g. blue) can be challenging as many sensors cannot maximize the contrast to reliably detect the mark as opposed to the background. The LA-W series color sensors are ideal for detecting register marks. With a detection distance of up to 500 mm, they are able to reliably detect small white register marks.
Challenge: Strong light environment will cover the working wavelength of the sensor, thus affecting the normal operation of the sensor. Strong light environment will cover the working wavelength of the sensor, thus affecting the normal operation of the sensor.
The ELB series photoelectric sensors have strong anti-interference ability and can work normally even in strong light environment.
Challenge: The contrast between the bottle and the liquid is extremely high, but many optical sensors cannot see through dark plastic or colored bottles.
Solution: CR Series Capacitive Proximity Sensor
By detecting the difference in the distance between the bottle and the liquid, it can detect whether there is liquid in the bottle directly, regardless of the bottle body.
Challenge: In a car wash, extreme conditions such as high pressure, dramatic temperature changes, fog, steam, and humidity can affect sensor performance. Application: Sensing vehicles during the car wash process.
Solution: ELS high-performance long-range photoelectric sensors, epoxy encapsulated, IP67 rated for wet environments. To verify that a vehicle has fully passed the car wash drying phase and signal the car wash machine that it is ready for another vehicle to begin washing.
Challenge: Wet environments can easily affect sensor operation Many transparent object detection applications occur in food and beverage processing applications, which often require frequent high-pressure, high-temperature washdown and/or chemical cleaning-in-place processes to ensure safety in the food chain.
Sensors rated IP67 are well suited for these environments because they are tested to ensure reliable operation even with frequent cleaning. Rugged stainless steel sensors are a popular choice, and in some applications, sensors made from food-grade materials may be required.
In some cases, plastic sensors can also be used as long as they are properly sealed. In addition, some photoelectric sensors can be viewed through small holes, which allows them to be shielded for use in washdown and sanitary environments.
Challenge: Reflective and wrinkled packaging Application: Counting tea bags moving on a conveyor belt
Solution: ELB-X photoelectric sensor
Challenge: Tablets move very fast
Solution: FM Series Fiber Optic Amplifiers
The pharmaceutical and medical industries use dispensing mechanisms to ensure that tablets are separated from each other and do not fall into the bottle side by side or at the same time. All of this is done at very fast speeds, so a high-speed, small object detection sensor is needed to ensure accurate dispensing of tablets. Fiber optic amplifiers have a fast response speed and can detect extremely small sizes.
Challenge: Dark objects, such as solar wafers or car parts, absorb a lot of light, especially red light. Due to the low reflectivity of these targets, it is difficult for LED and laser sensors to reliably detect the presence of very dark objects, especially against an equally dark background. Using the HC-S series laser displacement sensors, you can accurately measure the distance of dark objects regardless of the color of the object being detected.
Challenge: Multicolor targets also have frequent color transitions and different reflectivity, which further affects sensing reliability.
Solution: HC-S laser displacement sensor
Challenge: Narrow and Crowded Spaces
Solution: ESB Series Photoelectric Sensor
Because it is a miniature stand-alone photoelectric sensor, it fits into crowded or small spaces. It can be mounted directly on or inside manufacturing equipment without taking up space or interfering with laboratory work.
Challenge: Translucent materials of varying sizes and shapes in a washdown environment
Solution: ELB-X Transparent Object Detection Sensor
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