Configurations

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Data acquisition hardware configurations can be grouped into two general categories, centralized and distributed. The availability of the space in the vehicle, number of channels needed, sensor location and the capability of the calibration equipment and tools will impact the configuration.

Traditionally, all data acquisition modules are centralized in one location of the test vehicle enabling the use of lower cost, high channel-count modules. A single location may also simplify servicing the equipment in the field. In addition, if the equipment can be placed in a well protected area, the equipment may not need to be ruggized. The drawbacks are longer wire lengths that must be laid throughout the vehicle and the resulting multiple intrusions for wire bundles. Implementation requires higher labor and material costs.

ATI not only supports centralized but also offers an alternative, a distributed configuration. Smaller data collection modules are placed throughout the vehicle. These smaller units are easier to fit into the vehicle and therefore can be located close to the actual signal source improving signal integrity and reducing noise affects. Smaller bundles of wire are required to each module reducing the size and number of intrusions into the vehicle to preserve bulkhead integrity for safety and to reduce cost of installation and damage to vehicles.