Small optical encoders
14 June 2006
Opto-Electronics
Avago Technologies' reflective incremental optical encoder, the AEDR-8400 series, is billed as the industry's smallest, coming in a surface-mount package with dimensions of 3,00 mm length by 3,28 mm width by 1,262 mm height.
These encoders combine extremely small size with 254 lines per inch (LPI) resolution, low power consumption and wide operating temperature range. These attributes make it a good choice for consumer, office, industrial and automotive interior applications ranging from scanners, printers, miniature cameras, and seat adjustment and rear view mirror controls in automobiles.
The Avago AEDR-8400 series of reflective encoders consist of an LED light source, a special photodetector IC with integrated electronics, and integrated optics. They operate from a single 2,8 V (nominal) supply, drawing 12 mA (including 6 mA LED current), typical. They can be used with a reflective code wheel to sense rotary position and velocity, or with a linear code strip to sense linear position and velocity. The devices provide two-channel digital outputs in quadrature, which provides both count and direction information. They are said to be insensitive to axial play and maintain performance and accuracy over a wide variation in the gap between sensor and code wheel or strip.
Further reading:
Advanced HMI delivers enhanced durability
Fox Controls Rand
Opto-Electronics
This compact touchscreen HMI from IDEC provides essential visualisation and high-performance multitouch control, even in the most space-limited applications.
Read more...
Powerful UVC disinfection
Opto-Electronics
The S3535-H emitter generates an output power of more than 150 mW per chip at 265 nm, providing the strongest germicidal effect currently available on the market.
Read more...
Front panels for electronics
Seven Labs Technology
Opto-Electronics
In the world of electronics, the significance of a well-designed front panel cannot be overstated as it serves not only as the first point of interaction between users and devices, but also plays a crucial role in the functionality and aesthetics of electronic products.
Read more...
Cree: Illuminating the future of LED technology
Altron Arrow
Editor's Choice Opto-Electronics
As a pioneer in this field, Cree LED has been instrumental in shaping the LED landscape, driving innovation and performance in this sector.
Read more...
New optical sensors for object detection
Opto-Electronics
A special feature of the Würth Elektronik sensors is that they filter out visible light up to 800 nm, rather than just up to 700 nm, like many other sensors of this type.
Read more...
HTML5 WebPanel with Linux, Android, or AutomationBrowser
Vepac Electronics
Opto-Electronics
Having a front protection rating of IP65, and additional features such as Wi-Fi, Bluetooth, USB, RS232 integrated, these panels are an excellent solution for most industrial applications.
Read more...
Laser control for smart glasses
Opto-Electronics
TDK has developed the world’s first full-colour laser control device for 4K smart glasses using lithium niobate thin film.
Read more...
PVision introduces interactive PoS to South Africa
Opto-Electronics
Recently, PVision partnered with Nexmosphere, a company that transforms any digital display into an engaging experience using sensors and controls, to bring the next level of point-of-sale digital displays to consumers.
Read more...
InGaAs and SWIR surveillance
Opto-Electronics
Sensing in the SWIR range (wavelengths from 0,9 to 1,7 microns) has only recently been made practical by the development of Indium Gallium Arsenide (InGaAs) sensors.
Read more...
Touchscreen interfaces for industrial applications
Rugged Interconnect Technologies
Opto-Electronics
Being protected from water and dust ingress, scratches, abrasions, and metallic dust makes them suitable for installation into harsh environments.
Read more...
printer friendly version