SF4-AH16-H

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Optical sensors have been utilized in various industrial applications, from counting products in factories to controlling robotic systems in warehouses. The detection of objects by an optical sensor works either through the transmission of light through an optical channel, or the interruption of light across an “opaque” material. The latter type of optical sensing device is commonly known as a “photointerrupter”. The SF4-AH16-H Photointerrupter of Omron brand is a Slot Type Logic Output photointerrupter, used for the detection of objects in industrial automation and robotic applications.

The SF4-AH16-H Photointerrupter operates by sensing when an object interrupts its light-transmission path. It works by having one light source that is transmitted through a slot-shaped opening and detects an object when it interrupts the light being transmitted. The light is detected by a phototransistor on the other side of the slot. When no object is in the detection field, the light is uninterrupted and the phototransistor does not detect the incoming light. When an object is present, it interrupts the light which causes the photo-transistor to detect the light, triggering an output.

The SF4-AH16-H Photointerrupter is composed of a transmissive head and an angle detector. The transmissive head uses infrared LEDs to emit light which is then transmitted through the slot-shaped opening. The angle detector uses a phototransistor to detect the light which is reflected off an object back into the slot. The angle detector’s output is a logic signal, either 0 volts or 3 volts, depending on the state of the slot, open or closed respectively. This signal is transmitted back to the controller for interpretation.

The primary benefits of the SF4-AH16-H Photointerrupter include its small size and its high immunity to noise, coupled with a high-sensitivity response. This has made the photointerrupter popular for applications that require a small, reliable tactile feedback component. It is also well suited to applications where accuracy and speed are of importance, such as product inspection and positioning.

Examples of applications where the SF4-AH16-H Photointerrupter is commonly utilized include inspection and counting, pick-and-place robots, product sorting and scanning, object/wall distance detection, stroke detection, and opto-couplings for industrial motors. In each of these applications, the SF4-AH16-H Photointerrupter can be used to quickly and reliably detect objects and accurately position them. It can also be used for maintaining a constant distance between two objects, or for detecting the movement of a moving robot.

The SF4-AH16-H Photointerrupter is a reliable and cost-effective solution for detecting objects in industrial and robotic applications. With its high immunity to noise and its small size, it is well suited for a wide range of industrial applications. Its logic output makes it easy to integrate into existing systems, and its high sensitivity makes it a valuable tool for accurately detecting and positioning objects.

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