DATA Acquisition - Instrumentation Devices

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<strong>DATA</strong> ACQUISITION Reliable <strong>Acquisition</strong> KAM-500 data acquisition is based on a simple and robust concept – the ‘acquisition cycle’. Finite state machines are implemented on fixed function FPGAs (Field Programmable Gate Arrays), not software dependent microprocessors. The FPGA is configured to repeatedly perform the same set of actions so that hardware performs reliably and in a completely deterministic manner– ‘works once, works always’. No software, stack or microprocessor No real-time decisions or interrupts No operating system (no boot up time) No analog multiplexers = simultaneous sampling + no crosstalk The hardware has been designed for reliability No potentiometers, jumpers or relays No SIMS (programmable filters) I 0 I 1 Out High Performance The KAM-500’s high performance is achieved using an all-digital backplane with a throughput of up to 64Mbps (4Msps with 16 bits per sample). The KAM-500 supports hundreds of analog channels in a single, stand-alone chassis. For distributed systems the number of channels increases to thousands. All analog modules have high data integrity as Every analog channel has its own antialiasing filter, instrumentation amp at least 16 bit ADC and programmable digital filter Digital filtering is applied using FIR and IIR techniques for a wider choice of sampling rates, more accuracy and repeatability as well as immunity to temperature drifts All parameters are sampled independently of transmission Time correlation of sampled data is straightforward as parameters sampled at the same rate are sampled at exactly the same point in time Simultaneous sampling occurs across the complete system in every card in every chassis making it unnecessary to realign or interpolate samples during analysis Sel PSU Generates +5, +/-12V, +/-7V Isolated/filtered/ protected BACKPLANE CONTROLLER with data encoder PCM or Ethernet USER SLOTS Any module in any slot 3, 6, 9, 13 as standard DIGITAL BACKPLANE Synchronous Clock, at 8MHz, Address and Data lines, Read/Write Strobes 3
PRODUCT GUIDE Compact, Low Power The compact size and low power requirements of the KAM-500 make it a perfect fit for the majority of airborne applications. The all-digital system-level design and well-proven, stable and mature backplane architecture, together with the availability of a wide range of module-level core logic, combine to ensure that no challenge is too great where the program merits the customization of COTS technology and the schedule can accommodate the corresponding lead-times. Standard Chassis 3, 6, 9, 13 user slots Single units to large distributed systems 3U 6U 9U 13U Alternative Chassis Compact units in variable sizes and form factors 5F TKAM * 1F * microKAM 12R 3F 4L Refer to Mechanical Specifications on page 11 * design concepts Modular, Future Proof A key concept behind KAM-500 is “any module, any chassis, in any combination”. Modules or chassis can be added to the system or individually replaced. There are over a hundred modules and variants available and chassis can be built with any mixture of modules – analog, digital, bus etc. – to meet the specific needs of a program. This modularity means inventory requirements are minimized and it is easy to modify or upgrade a system by simply replacing modules that interface to Sensors Avionics buses Audio / video Serial / parallel data The ACRA CONTROL solution is highly future proof with new modules added continuously every year that work with the same KAM-500 chassis. This is reinforced with the proven, easy migration path to new networking and sensor technologies such as smart and wireless sensor networks. 4
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DATA Acquisition - Instrumentation Devices

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