HL18L-P4A5BH

Series:	SureSense
Part Status:	Active
Sensing Method:	Retroreflective
Sensing Distance:	3.937" ~ 472.441" (100mm ~ 12m)
Voltage - Supply:	10 V ~ 30 V
Response Time:	500µs
Output Configuration:	PNP
Connection Method:	Connector, M12
Ingress Protection:	IP67
Cable Length:	--
Light Source:	Red Laser Diode (655nm)
Adjustment Type:	Adjustable, Potentiometer
Operating Temperature:	-30°C ~ 55°C (TA)

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Optical Sensors - Photoelectric, Industrial

Optical sensors are devices that detect optical radiation such as visible light and infrared light, as well as measure the intensity of reflected, scattered, or absorbed optical radiation. Included in this class are photoelectric, industrial, and other specialized optical sensors. Through this application, a variety of useful measurements can be obtained.The HL18L-P4A5BH is a highly sensitive and low power consumption integrated optical sensor developed by Holtek Semiconductor Co., Ltd. This device combines a high-speed linear light sensor, pinhole lens, and light source LED to form a one-piece photodetector. It is one of the best products in the photoelectric industrial field, as it can be used for wide-range industrial measurements.

Application Field of HL18L-P4A5BH

The HL18L-P4A5BH is mainly used in industrial measurements such as detection of liquid and solid objects, measuring light intensity, and detecting ambient light intensity. It can also be used for digital temperature control and laser fault detection. It is suitable for a variety of industrial applications, such as:• Laboratory and industrial automation systems.• Process control systems. • Robotics and machine vision. • Digital video cameras. • Medical and imaging equipment. • Voice recognition systems.The device is available in two different models to accommodate a variety of different applications. The HL18L-P2A6BH has a wide-range measurement range and an extended operating temperature range, while the HL18L-P4A5BH has a relatively narrower range.

Working Principle of HL18L-P4A5BH

The HL18L-P4A5BH utilizes Holtek’s patented linear light sensing technology. This technology works by employing a small aperture or ‘pinhole’ lens and a very sensitive linear photodiode array to accurately detect the intensity of incoming light. The operation of the HL18L-P4A5BH starts with the light source LED emitting light, which is then directed onto the pinhole lens by a tiny reflector. The light then passes through the pinhole lens and strikes a linear array of photodiodes located beneath. The current generated from each photodiode is then read by the sensor\'s built-in microprocessor, which uses this data to measure the amount of light present. The reading is then sent to the output channel. In addition to the sensor’s linear light sensing technology, the device also uses digital signal processing (DSP) to enhance the accuracy of the light sensing. By using powerful algorithms, the HL18L-P4A5BH is able to measure light intensity in both low and high light conditions with a precision of less than 0.1%.The HL18L-P4A5BH is an ideal solution for industrial applications requiring accurate, reliable, and cost-effective light measurement. The device’s small form factor, wide field of view, and low power consumption make it well-suited for a variety of applications, from medical and imaging equipment to robotic systems and machine vision.

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