NOW has a long experience in the design of complex mechanics.
Our knowledge in materials, coatings and production methods allows us to develop products with rugged design, that are e.g. used in vacuum and clean rooms, as well as radiation intensive and other extreme environments.
We also pursue:
• Industrial design where demands on performance and usability are high
• Verification and certification against different standards and directives
• Production preparations in our customers production lines to secure quality and effectiveness in production
Our preferred choice of CAD tool is SOLIDWORKS, but we have skills in other tools as well.
Below you see reference projects related to mechnical design.
Test & Stimuli, Elektronik, Mekanik
19 inch rack emulator
NOW has developed hardware to two 19 inch racks, where the electronics emulates the functionality of another equipment. The racks are used where the real equipment not yet is available, or cannot be used for other reasons. The rack functions are used to evaluate both electronic functions and software.
Seven PCBs in the system were developed by NOW, plus a number of internal and external cables. PCBs and other electronics were mounted in ten EMC-safe boxes/modules, where the box fronts and backsides has engraved texts for connectors, LEDs and knobs. Both racks use 230 VAC and 100 VDC, and NOW carried through a CE marking of both racks, with the help from external testing companies.
Mjukvara, Mekanik, Vision
Inspection of automatic lathing
In lathing defects may occur caused by a worn or damaged lathe steel. NOW has developed a vision system for automatic inspection of automatic lathing with high precision. Data is stored in a data base for traceability. The system can be built-in in the lathe, or mounted in a separate inspection cell.
Mekanik, Vision, Mjukvara
Inspection of tinned cables
A vision system for inspection of tinned cables has been developed. The system looks for holes in the tinning. The cable is inspected in real time, when it passes four cameras, with the help of proprietary algorithms. The system includes a standard PC, four Firewire cameras with a 1024×768 resolution, optics and lighting.
Vision, Mjukvara, Mekanik
Inspection of production
A system has been developed for inspection of production of coaxial cables. The system continously inspects the quality of the wowen copper shield to see if there are to large openings in the braid. The system is a development of an earlier system, and comprises a standard PC, four Firewire cameras, 1024×768 pixels, lighting and optics.
Vision, Mekanik, Mjukvara, Elektronik
Quality control in 2D and 3D (TQC)
Vision system (Tile Quality Control, TQC) for difficult environments with Firewire cameras and audio analysis. The system is used for inspection/quality control in roof tile production, both in 2D and 3D. The size of the tiles is checked, and defects in the surface and edges are detected by cameras, where micrometre-thin cracks are revealed. Additionally noise analysis is used for detecting hidden cracks inside the tile.
The software is written in C++ using DirectShow and Microsoft Visual Studio.
The hardware consists of a PC with I/O-cards and external PLC and photoelectric sensors, and is built with Bosch Rexroth strut profiles around the conveyor belt.
The system is fully parameter-controlled and stores the statistics. The user can choose to save images and sound recordings for a follow-up. The system has a variety of custom variants delivered to the Swedish and Danish tileworks for different kinds of clay and concrete tiles.
Mjukvara, Mekanik, Vision
Inspection of bending
Within a very short time frame, NOW developed a vision system for inspection of bending. The system with two Firewire cameras, lighting, control electronics and PC software, automatically inspected the bending of an tinned component pin. If copper was visible, the component was not to be used. The system looked for the colour of copper, which was very effective. The customer could easily change parameters via the PC user interface, to change for example how much copper that was allowed. Statistics were saved in a database tool.
Mjukvara, Elektronik, Mekanik
A complete CCD camera for military use, including mechanics, electronics and software, has been developed by NOW. The camera records a 14-bit 2048×2048 video at 160 Msamples/s. A lossless image compression with a proprietary algorithm reduces the amount of data, which is then sent over a Gigabit Ethernet link to the host computer. Basic image processing and control is done in an Altera Cyclone II FPGA. The camera is of a kinematic theodolite type.
Elektronik, Mjukvara, Mekanik
Embedded 8.4@ TFT display with software, mechanics and image processing. Used in military operator systems under harsh environments for displaying camera video, with crosshairs and OSD (On Screen Display). Includes a microprocessor for system control and an Altera Cyclon II FPGA for image processing and display control. The job included the development of the full system: the display itself, mechanics, electronics and programming.
Mekanik, Vision, Mjukvara
Vision system for inspecting dashboards
NOW has developed a vision system for inspecting dashboards. The system is built using DirectShow and Microsoft Visual Studio .NET 2003. Cameras deliver images that are handled in real time. Possible parameters to inspect are: colour, intensity, shape, symbols, segment displays, LCD displays, indicator positions and indicator needle movement. The application encapsulates a scripting language that is easily configured through a graphichal interface. Optional controls/commands are carried out in sequence. The system communicates with the client’s control system via TCP/IP.
Military memory module
Development of a portable military memory module and its holder, for use in a tank. The mechanical design is very robust in order to withstand the environment of military combat vehicles. The electrical interface to the memory module is a CAN-bus. The module is based on a Philips 87C592 microcontroller and flash memory. NOW has also mass-produced the memory module and its holder during a five year period.
Elektronik, Mjukvara, Mekanik, Vision
Checking of labels
A system for reading and checking of labels. A line-scan camera scans the label as it passes by, and a computer with a frame grabber board, a control board and image processing software interprets the image. The printing quality is checked, and the serial number is read and stored.
Elektronik, Mjukvara, Mekanik, Test & Stimuli
Testing of mobile phones batteries
A system for testing of mobile phones batteries. A test-head with spring pins connect to the battery, and a Windows XP/2000/NT- based PC-system, with an I/O board developed by NOW, perform tests of batteries in the production line. The test data is stored in a database and a software tool developed by NOW is used to study failure types, failure rates, compare measured values to given limits, and to perform statistical analysis.
Elektronik, Mjukvara, Mekanik, Vision
Measuring cooling channels
NOW has developed vision functions for integration into the customer’s machine for measuring cooling channels etc. in tool steel. Angle and position were measured. The delivery included DLL files for integration into the customer’s application, lighting, optics, CCD-camera, camera casing, etc.
Mekanik, Elektronik, Test & Stimuli, Mjukvara
Video conversion equipment
NOW has developed a video conversion equipment which performs conversions between different video formats, for a test station used to test and develop printed circuit boards for an advanced military airborn/flight display system. The system consists of a PC and up to six video conversion boards. The PC is used to control the conversion PCBs and to translate commands coming from the operator’s computer via Ethernet, into commands that can be interpreted by the conversion boards. Everything is assembled to fit in a 19″ rack. With this equipment it is possible to test video chains without having a complete system with different cameras and sensors. The equipment converts video between analog and digital video standards and can also store, load/read, and rotate images.
Mekanik, Test & Stimuli, Mjukvara, Elektronik
NOW has developed several generations of stimulus-generation equipment, for a test station used to test and develop printed circuit boards for an advanced military airborn/flight display systems. A system contains up to three boards of the same type, where each board has three video outputs, two analogue and one digital. The analogue outputs can be synchronized to an external sync signal. The boards are controlled via buttons on the front panel, or with commands from the control computer via GPIB, IEEE-488.2. The equipment simulates the video from cameras, IR-cameras, radar and so on, and delivers several outputs of different video standard.