HOA6990-T55

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Optical Sensors, also known as photoelectric devices, are electro-optical transducers, typically consisting of a light source, a light modulator, and a light detector, which can convert energy from one form to another by using the principle of light. Photointerrupters, also known as slot type photoelectric sensors, are one type of photoelectric sensor that utilizes the interruption of light beams. The HOA6990-T55, a slot type, logic output photointerrupter, is used to detect the presence of a wide range of target objects including glass, wood, stone, and plastic.

The HOA6990-T55 is an optical switch primarily used for sensing the presence or absence of an object. It consists of a light emitting diode (LED) and a phototransistor connected in an opposite direction - when the object interrupts the beam, the phototransistor switches “on”. The HOA6990-T55 incorporates a small, flat, slot-type optical head, which is designed to achieve high sensitivity. The HOA6990-T55 is capable of providing a wide range of logic output states, including binary (on/off), string (pulse/pause), and multiplexed (dual). The logic output can be operated at either +5V or +12V.

The HOA6990-T55 works on the principle of interruption. When an optically opaque target object interrupts the light path between the LED and the phototransistor, the current flowing through the phototransistor reduces significantly, and the logic output is activated. The sensitivity of the HOA6990-T55 can be adjusted using the sensitivity adjustment potentiometer, as the working range is adjustable. The typical switching distance is between 5 to 40 mm, depending on the size of the target object. The switching time of the HOA6990-T55 is 8 ms, and the operating temperature range is -40°C to 100°C.

The HOA6990-T55 is capable of detecting a wide range of objects, with sensitivities ranging from 0.3mm to 10mm, making it suitable for a variety of applications. It is mainly used for non-contact sensing of objects passing through a slot or detection of presence of target objects. Typical applications of the HOA6990-T55 include non-contact position sensing, detection of the presence of paper materials, detection of cams and gears, and detection of presence of parts. It is also used in pick-and-place robots for the automated assembly of components, and edge detection in flat panel displays and semiconductor wafers.

In summary, the HOA6990-T55 is an optical switch for slot type, logic output photointerrupters that is mainly used to detect the presence or absence of an object. It works on the principle of interruption, and is capable of providing a wide range of logic output states, including binary (on/off), string (pulse/pause), and multiplexed (dual). The HOA6990-T55 is ideal for sensing the presence of a wide range of target objects including glass, wood, stone, and plastic. Its switching time is 8 ms, and temperature range is -40°C to 100°C. It finds use in a variety of applications, including non-contact position sensing, detection of presence of paper materials, cams and gears, parts, pick-and-place robots, and edge detection in flat panel displays and semiconductor wafers.

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