HBM introduces CANheaddirect data cables

HBM's CANheaddirect reduces the need for extended data cable runs in distributed measurement tests because it is sited close to the measuring points.

Each CANheaddirect takes readings from up to 50 measuring points, and up to five amplifiers can be connected to each other for increased coverage.

CANheaddirect connects the measuring system to a PC for capture and analysis using a simple USB connection.

Coverage of up to 250m for the complete system can be achieved, by connecting the amplifiers with HBM's CANbus for data exchange and voltage supply.

CANheaddirect simultaneously measures and records physical parameters such as strain, force and pressure.

The system provides an inexpensive means for data acquisition in experimental structural and stress analysis undertaken by universities, laboratories and structural engineers.

The system is suitable for static structural tests, fatigue tests, long-term monitoring, and measuring general structural mechanics such as wind energy plants, railway carriages and mechanical engineering components.

The regulated four-wire circuit for strain gauges compensates for cable influences such as temperature variations.

Internal and external resistances are available for shunt calibrations.

All measurement data is completely synchronised, and measurements can be implemented with single SG and SG full- and half-bridges, as well as with DC voltage sources.

HBM's CatmanEasy software can be used to record the measurement data, while self-programmers can read data with the help of the API documentation and transfer it to a separate system; an ActiveX interface is also available.

HBM also supplies the MGCplus, along with communication modules ML74 and AP74, for applications with more than five CANhead modules per measurement chain.

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