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Budget server acquires up to 32 strain gauges

A Microstar Laboratories product story
Edited by the Engineeringtalk editorial team Sep 1, 2006

A network-ready single-box DAPserver 200 system conditions, acquires and logs signals from up to 32 strain gauges.

Microstar Laboratories has announced a network-ready single-box DAPserver 200 system that conditions, acquires, and logs signals from up to 32 strain gauges.

For 32 channels, the total cost per channel - except for the cost of a strain gauge - comes to under $350, all hardware and software included.

This system can sustain a throughput of 10Ksample/s on all channels, and it samples all channels simultaneously.

The system can process acquired data in real time as needed, as well as log raw or processed data to disk, and it can output control signals.

DAPserver 200 packaging includes handles and mounting hardware for standard 19in industrial racks.

Its main chassis of 16-gauge stainless steel gives an industrial-grade instrument far stronger and more durable than industrial PCs made of 22-gauge sheet metal.

Users can extend a single DAPserver system with an additional rack-mountable industrial enclosure to handle applications with up to 112 strain gauges.

For 112 channels, the cost per channel comes down below $250.

All systems include hardware and software for networking, and you can control them from any PC on the network.

For larger applications, additional synchronisation hardware and software lets users integrate all data acquisition into a single synchronised network of multiple DAPservers that can sample several hundred channels simultaneously.

Factory-installed interfaces provide analogue signal conditioning for strain gauges.

They support quarter-bridge, half-bridge, and full-bridge sensors, with voltage excitation, gain, simultaneous sampling, and voltage sense feedback.

Buyers can specify gains of 20, 40, 100, 200, 500 and 1000.

On each board, eight eight-wire connectors, one for each sensor, support a wide variety of connections with two to six wires per sensor.

The user supplies bridge completion resistors, and places them on small quick-swap daughterboards.

As with other Microstar Laboratories sensor interfaces, another daughterboard option provides an analogue anti-alias filter for each channel.

Customers now can buy a single-box DAPserver 200 system that includes all hardware and software required to condition, acquire, and log to disk the signals from up to 32 strain gauges.

The system samples all channels simultaneously.

Users can connect the DAPserver to a network, and control it from anywhere.

Or you can add a mouse, keyboard, and monitor to control it locally.

For applications with more channels, you can scale up the system and lower the cost per channel.

For 32 channels, the total cost per channel - except for the cost of a strain gauge - comes to under $350, all hardware and software included.

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