EE-SPX405-W2A

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Optical Sensors are a type of sensor that responds to light, typically using infrared radiation. They can be used to detect the presence or absence of objects or to measure distances or levels. Photointerrupters, also known as slot type sensors, are one of the most common optical sensor types and are used to detect the presence or absence of objects based on whether or not they break the light that the device emits. EE-SPX405-W2A is a type of slot type photointerrupter with an integrated logic output.

Application Field

EE-SPX405-W2A is an improved version of the EE-SPX405 optical interrupter, with a higher sensitivity, tighter control over the size of the sensing slot, and an integrated logic output. This device is designed for use in a variety of industrial automated systems, such as conveyor belt and pick-and-place applications. It\'s also suitable for position sensing, speed detection, and object orientation. The EE-SPX405-W2A is also well-suited for applications that require low-power consumption, as it utilizes dual-gate CMOS technology and requires minimal current to drive the output.

Working Principle

The EE-SPX405-W2A photointerrupter consists of two parts: an input shield and a slotted photosensitive resistor. The input shield is an opaque screen fitted in a hollow cylindrical housing that envelops the slotted photosensitive resistor. The slotted photosensitive resistor is a tiny semi-conductor device with two gates, one on either side of the slot. When an object passes through the slot, the input shield blocks the light coming from the emitter onto the photosensitive element. This change in light causes the two gates to move apart, producing a logic output signal.

The EE-SPX405-W2A has a high off-state input impedance of 250 kΩ and a low on-state input impedance of 220 ohms. The device is capable of detecting objects at speeds of up to 5 m/s. It also has a wide temperature range of -40°C to 85°C, making it suitable for a variety of applications. The integrated logic output allows the sensor to be connected directly to a logic circuit, simplifying the wiring and connection process.

The EE-SPX405-W2A slot type photointerrupter is capable of accurately detecting the presence of an object and has a fast response time. Its integrated logic output and wide temperature range make it suitable for use in a variety of industrial automated systems. The device is also low power, which helps to reduce costs in applications where energy efficiency is important.

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