Stemmer Offers CIS Technology For Web Applications

Contact image sensor (CIS) technology from Stemmer Imaging offers an alternative to conventional line-scan cameras for industrial web applications, such as the inspection of paper, textiles or glass. According to the company, which will exhibit the technology on Stand 1530 at VTX, which will be held at the NEC in Birmingham, CISs offer advantages in terms of space requirements, ease of alignment and resolution. With line rates up to 100kHz, scanning widths of up to 4m, high resolutions and integral light sources, a CIS can be a cost-effective choice in certain applications.

The CIS head consists of a lens array using graded rod lenses, with each individual lens capturing an image of a very small section of the target object. There are various resolution options available, from 25dpi up to 3,600dpi, with pixels sizes of 1mm down to 7um. A clear, sharp image is produced along the narrow line of the sensor 'head', which is made up of silicon photodiodes using either charged-coupled-device (CCD) or CMOS technology. CISs feature a flat construction so they fit into narrow spaces.

They come as a system complete with optics, illumination and encoder logic and can be joined together to suit the resolution and width of the web, with no reduction of line rate as the width increases. This provides a consistent viewing angle, sharpness and brightness across the width. Integral light-emitting-diode line lights are pulsed to offer long operating lifetimes and to enhance image quality. Built-in timer control includes encoder inputs for triggering and light control and is configured via RS232 or Ethernet.

Signal processing enables high data rates, independent of the scanning width. The interface to the image processing system is via industry-standard Cameralink or Gigabit Ethernet. CISs operate with a fixed working distance (typically around 10mm) and a depth of field of around 2-3mm. As such, they are suitable for inspecting very flat objects where there is no vertical movement of the object at the point of inspection.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more