Sensors & Transducers


Cost saving sheet sensor

September 2008 Sensors & Transducers

The new ZDDM 050T sheet sensor from Baumer has been designed to ensure high quality of bound print products in collating machines. For this task, a 60 x 80 mm image is taken of every sheet at a specified point in rapid sequence and this image is compared to a previously programmed reference image. The fully integrated image analysis system activates a simple switching output for sheet acceptance or rejection. Based on this information corrective actions can be initiated in the machine. The accept/reject signal is presented on a display together with additional sheet recognition information and can also be transmitted via Ethernet for remote monitoring and report generation.

The sheet sensor combines complex image recognition with the simplicity of a 
switching sensor
The sheet sensor combines complex image recognition with the simplicity of a switching sensor

An intelligent teach-in process performed at the beginning of every print run ensures optimal recognition of the sheets. In run mode, up to 10 sheets per second are analysed at a speed of up to 3 m per second. The sheets, which may be printed either matt or gloss, may be between 110 and 500 mm in length and up to 5 mm thick. The sensor tolerates shifts in position of about 10 m along the x and y axes, as well as rotations of up to 3 degrees.

Thanks to its compact housing, 100 x 50 x 60 mm, the sensor can be mounted directly on the feeder. It is synchronised with the machine by means of the sheet start signal (external sensor), encoder pulses (CHA/CHB) or via an image trigger pulses from the control system. As the imaging optics, LED lighting, image analysis system and the interfaces (digital I/O and Ethernet) are integrated in the sensor, no additional equipment is necessary.

For more information contact Bennie Swanepoel, Temperature Controls, +27 (0)83 454 2771, [email protected], www.tempcon.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Leaders in sensor technology
Gail Norton Instrumentation Sensors & Transducers
Photoelectric eyes have always needed perfect working conditions, but in the workplace there is no such thing. Steam, water, light and dirt interfere with most photoelectric eyes, but never with a Telco sensor.

Read more...
Miniature position sensor for precision motion control
Sensors & Transducers
The ILPS-13Z Series miniature linear variable inductive transducer position sensor is designed to deliver exceptional performance and reliability for a wide range of industrial and laboratory applications, including automotive R&D, motorsports, motion control, medical, military and aerospace.

Read more...
Positioning system for automatic adjustment of auxiliary and positioning axes
Vepac Electronics Sensors & Transducers
The PSE 34x-14 positioning system from Vepac is an intelligent compact solution for the automatic adjustment of auxiliary and positioning axes.

Read more...
Powerful measuring sensor with two new modes
Turck Banner Southern Africa Sensors & Transducers
Turck Banner has launched two new modes in the Q2X series of miniature photoelectric sensors: laser measurement and fixed-field.

Read more...
Fire detection and safety solutions for mining
ACTOM Electrical Machines Sensors & Transducers
ACTOM Industry is expanding its portfolio with the introduction of cutting-edge fire detection and safety solutions designed for explosive atmospheres.

Read more...
Miniature, lightweight inductive linear position sensor
Sensors & Transducers
Alliance Sensors is now offering the miniature, lightweight LZ SERIES linear position sensor product line utilising LVIT Technology. The sensors are designed for tight spaces that require excellent stroke-to-length ratio.

Read more...
Human-centric integration underpins Booyco Electronics’ approach to PDS
Sensors & Transducers
In the mining sector, the integration of advanced technologies such as proximity detection systems is critical to enhancing safety and operational efficiency. While the technological aspect is essential, the human factor plays a pivotal role in the successful implementation and adoption of these systems.

Read more...
High-speed registration mark sensors
Vepac Electronics Sensors & Transducers
The SMARTEYE COLORMARK ll registration mark sensors from Vepac Electronics combine unique colour perception ability with very high-speed response.

Read more...
DFS 21 dual channel digital fibre-optic sensor
Vepac Electronics Sensors & Transducers
The DFS 21 dual channel digital fibre-optic sensor from Vepac Electronics is designed to provide reliable detection using plastic fibre-optic light guides.

Read more...
DFS 31 high-speed fibre-optic sensor
Vepac Electronics Sensors & Transducers
The DFS 31 high-speed digital fibre-optic sensor from Vepac Electronics has an ultra-high response speed and ultra-low jitter and is ideal for precise position accuracy and high-speed/small profile detection.

Read more...