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Webtec sensors are sensors that measure the operating speed of the measured object and convert it into an output signal. Speed sensors include linear speed sensors and rotational speed sensors. With the development of technology, traditional measuring equipment can no longer meet current needs and is gradually being phased out, while laser speed sensors are widely used and play an important role in product manufacturing. By connecting to a computer, they enable automated and intelligent measurement control of the measured object. This is the product of the combination of modern measurement technology and computer technology.

Webtec sensor principle

Optical measurement and control systems are diverse, manufactured based on different principles of how luminous flux acts on photoelectric elements. They can be divided into two categories according to the nature of the output from the photoelectric element (optical measurement and control system): analog photoelectric sensors and pulse (switching) photoelectric sensors. Analog photoelectric sensors convert the measured quantity into a continuously changing photocurrent, exhibiting a single-valued relationship with the measured quantity. Analog photoelectric sensors can be divided into three major types based on the method of measuring the target object: transmission (absorption) type, diffuse reflection type, and light-blocking (beam interruption) type. The transmission type refers to placing the measured object in the optical path; the light energy emitted by a constant light source passes through the measured object, and after partial absorption, the transmitted light is projected onto the photoelectric element. The diffuse reflection type refers to light from a constant source being projected onto the measured object, reflecting off its surface, and then projecting onto the photoelectric element. The light-blocking type refers to the measured object blocking part of the luminous flux from the light source, causing a change in the luminous flux projected onto the photoelectric element; the degree of change depends on the position of the measured object in the optical path.

Webtec sensor features

1) Long detection distance: If a detection distance of 10m or more is maintained in through-beam configurations, it enables long-distance detection that other methods (magnetic, ultrasonic, etc.) cannot achieve. 2) Few restrictions on detected objects: Since the detection principle relies on light blocking and reflection caused by the object, unlike proximity sensors that limit detection to metals, it can detect almost all objects such as glass, plastic, wood, and liquids. 3) Short response time: Light itself is high-speed, and the sensor circuitry consists of electronic components, excluding mechanical operating time, resulting in very short response times. 4) High resolution: High resolution is achieved by concentrating the emitted beam into a small spot using advanced design techniques, or by constructing special receiving optical systems. It also allows for the detection of tiny objects and high-precision position detection. 5) Non-contact detection possible: Detection is achieved without mechanical contact with the object, preventing damage to both the object and the sensor. Therefore, the sensor can be used for a long time. 6) Color discrimination possible: The reflectance and absorptance of light formed by the detected object vary depending on the wavelength of the emitted light and the color of the object. Utilizing this property, the color of the detected object can be measured. 7) Easy adjustment: In types emitting visible light, the beam is visible to the eye, facilitating adjustment of the detected object's position.

Webtec sensor applications

Photoelectric sensors using photoelectric elements as sensitive components are diverse and widely used. They can be divided into two categories based on the nature of the output: (1) Photoelectric measuring instruments that convert the measured quantity into a continuously changing photocurrent, used to measure physical quantities such as light intensity, object temperature, light transmittance, displacement, and surface condition. Examples include lux meters for measuring light intensity, photoelectric pyrometers, photoelectric colorimeters and turbidimeters, photoelectric fire alarms, and automatic inspection devices and instruments for checking the diameter, length, ellipticity, and surface roughness of machined parts, all of which use photoelectric elements as sensitive components. Semiconductor photoelectric elements are not only widely used in civil industrial fields but also hold an important position in military applications. For example, lead sulfide photoresistors can be used to make infrared night vision devices, infrared cameras, and infrared navigation systems; (2) Devices that convert the measured quantity into a continuously changing photocurrent. Various photoelectric automatic devices are made using the characteristic of photoelectric elements to output "present" or "absent" electrical signals when exposed to light or in darkness. Photoelectric elements serve as switching photoelectric conversion components. Examples include photoelectric input devices for electronic computers, switching temperature control devices, and digital photoelectric tachometers for speed measurement.

Weidou Intelligent Technology specializes in selling German Webtec sensors, Webtec proximity sensors, Webtec distance sensors, Webtec vision sensors, Webtec displacement sensors, Webtec load cells, Webtec speed sensors, Webtec photoelectric sensors, Webtec position sensors, Webtec angle sensors, Webtec tactile sensors, Webtec temperature sensors, Webtec pressure sensors, Webtec flow sensors, Webtec level sensors, Webtec motion sensors, Webtec process sensors. Original German imports. Welcome inquiries and orders from users.