To our assortment we attach inexpensive optical sensors (photoelectric) and optical fiber PVC of Winlenk
Photoelectric sensors Winlenk of is a high-quality products that can compete with many world leaders. Despite its low price, their technical parameters satisfy many demanding customers. Among the products of Winlenk you will find a wide range of high-quality optical fibers PVC, which in spite of its competitively low prices are compatible with amplifiers optical fiber popular brands such as Balluf, SICK, Banner, OMRON, Keyence, IFM, Wenglor, DATASENSOR, Diella and fully fulfill its role.
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Very important in optical sensors is a wavelength of a light beam emitted by the transmitter. In most cases, these sensors use a red light modulated near infrared. The advantage of this solution is the low sensitivity to visible light from the environment.
For more demanding customers, we offer sensors made in the USAand specifically photoelectric sensors from Banner. One of the most common series of sensors Q12, QS18 and QS30, which in its class are both cheap and still provide great opportunities. Below a short description of this series.
The optical sensor QS18 is a very popular product of Banner, which we use in many applications.
Versions of photoelectric sensors from Banner QS18 Series:
- visible, infrared and laser light sensors
- rectangular with flat end casing
- rectangular casing with a threaded forehead M18, M30
- NPN & PNP, N.C. & N.O. outputs
- adjustable via a potentiometer or button
Versions of optical sensors from other series:
- made of plastic and metal, including stainless steel
- with the discrete output PNP/NPN and analog 0/4-20mA, 0-10V
- cylindrical casing Ø4mm - Ø40mm
- rectangular and square casing, also miniature
- standard IP67 and hygienic for food industry with IP69K
- reflective (range 0-3m)
- reflective with background suppression (ranges up to 2m)
- reflective with the mirror (range 0-18 m)
- transmitter - a receiver (ranges from 0 - 210m)
- luminescence sensors
- color sensors
- contrast sensors
- slot sensors
- fiber optic sensors
Accessories for fiber optic sensors:
- glass optical fibers in metal cover
- plastic optical fibers
- covers for fiber optics
- lenses for optical fibers
- knives for fiber optics PVC
Optical sensors - modes of operation and principle of operation
Optical sensors are components of industrial automation, the operation of which involves the issuing of a beam of light rays by the transmitter and receiving it by the receiver. The light source in the emitters are mostly LEDs that operate in the infrared or laser diodes. While the receiver is a phototransistor, a photodiode or photosensitive system with an amplifier.
Sensors of this type react to objects that will be in the region of its operation, that is, between the transmitter and receiver crossing the beam or on the beam reflected from the object.
Operating modes of optical sensors:
- transmitter-receiver
- reflectance
In this mode uses a direct, diffuse light reflected from the object. The transmitter and receiver are enclosed in the same housing, and the transmitter responds to light reflected directly from the object. A light beam emitted by the transmitter encounters an obstacle, which is reflected from and partially back to the receiver. Its range is largely dependent on the color of the light emitted by the transmitter. However, it may happen so that the illuminated surface is highly glossy and reflection caused by the surface has a much greater impact on its functioning and range than the color of the light used.
- reflective with a mirror
The optical sensor operating in reflective mode, as well as the sensor working in reflectance mode, consists of a transmitter and receiver contained in one housing. The transmitter emits a light beam towards a reflector (reflective mirror) from which bounces back to the receiver. Overriding the beam by an object interrupts the transmission and activate the sensor output. Sensors operating in this mode, by using reflective mirrors are not dependent on the color of the object and have a very long range.
The advantages of optical sensors include:
- high resolution enables the detection of very small objects and small rooms
- large detection range (from several millimeters to several hundred meters)
- short response time
Its disadvantage is the sensitivity to the color of the surface (including its ability to reflect and absorb light), and also may not work in dirty locations.
The use of optical sensors is very broad, they serve, inter alia, to the determination of levels of liquids and bulk materials. For non-contact detection of objects based on their color, to control the position of the moving parts of the machine, counting objects moving on a conveyor and their identification, as well as many others. In addition to the typical automation applications they can also be encountered in the security systems of objects and control gates, passages.