WF5-95B416

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Optical Sensors - Photointerrupters - Slot Type - Transistor Output: WF5-95B416 Application Field and Working Principle

The WF5-95B416 Photointerrupter is a slot type photointerrupter with a transistor output, capable of producing signals when a slotted object blocks or un-blocks the optical path. It is a widely used type of optical sensor, enabling reliable detection or counting of passing objects, including coins, tapes, cards and packages. In this article, we will be looking at the application field and working principle of the WF5-95B416 Photointerrupter.

Application Field

The WF5-95B416 Photointerrupter can be used in a range of applications. Some of the areas of usage that the WF5-95B416 is suited for include:

• Elevator, Train and Station Automation
• Distance Measurement
• Automatic Gate and Barrier Systems
• Automatic and Robotized Assembly Equipment
• Pick & Place and Object Sorting Machines
• Automated Laboratory Equipment
• Coin, Tape and Package Inspection and Counting

The WF5-95B416 Photointerrupter is also suitable for use in the automotive industry, for example in car window lifting systems or electric car locks. It can be used in medical equipment, including patient monitors, dialysis machines and X-ray machines. The WF5-95B416 Photointerrupter is also used in various consumer electronic products, such as printers, air conditioners, vending machines and televisions.

Working Principle

The WF5-95B416 Photointerrupter operates by blocking and un-blocking an optically opaque slot in a rotating device or object as it passes in front of the Photointerrupter’s optical path. The slot acts as a “gate” which restricts the amount of light reaching the Photointerrupter’s photodetector. When the slot leaves the optical path, the photodetector is exposed to full light, and when the slot re-enters the optical path, the photodetector is shielded from the light. The changes in the amount of light received by the photodetector produce electrical signals corresponding to the opening and closing of the slot.

The WF5-95B416 Photointerrupter utilizes a built-in light-emitting diode (LED) to aid in the detection process. The LED is used to emit a bright beam of light, which is modulated as the slot transitions in and out of the optical path, producing electrical signals corresponding to the presence or absence of the slot. The WF5-95B416 Photointerrupter is designed to accurately detect passing objects traversing at speeds up to 15 m/s.

The WF5-95B416 Photointerrupter is equipped with transistor outputs for connection to external circuits. The outputs are designed to provide logic-level outputs making it simple to interface the Photointerrupter with microcontrollers or digital logic circuits. The outputs can also be used to control relays or other external devices. Additionally, the WF5-95B416 Photointerrupter provides protection against electrostatic discharges, with electrostatic discharge protection of up to 8kV.

The WF5-95B416 Photointerrupter is a compact, cost-effective and reliable solution for a wide range of applications that require optical sensing. The combination of LED and photodiode make it well suited for applications where accuracy is a particular requirement.

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