PC USB connection for multiple, mixed sensors
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Biodata product story
Edited by the Engineeringtalk editorial team
Aug 18, 2000
The new Microlink 751 from Biodata Ltd provides 32 digital inputs and outputs, 8 counters and 16 analogue inputs for voltage, current, thermocouples, strain gauges and pressure transducers.
The new Microlink 751 from Biodata Ltd provides 32 digital inputs and outputs, 8 counters and 16 analogue inputs for voltage, current, thermocouples, strain gauges and pressure transducers.
The unit plugs into the PC's universal serial bus port and is extremely quick to set-up and use.
Eight Microlinks can be connected to the USB port and Biodata offer free technical support for life.
The 751 package costs 595 pounds and includes the Windmill 5 software suite for logging, charting, control, etc, under Windows.
No programming is required.
The Microlink is powered from the USB port, making it ideal for portable or in-vehicle data acquisition.
Users can choose from 4 input ranges, or let the Windmill software automatically select the ranges most closely encompassing the signals.
An integrating analogue-to-digital converter reduces electrical noise.
Using Windmill, the resolution of the converter can be selected from 12- to 18-bits: letting users choose high throughput or high resolution.
Linearisation is available for B, E, J, K, N, R, S and T type thermocouples and all readings are presented in engineering units.
Strain gauge bridges can be individually configured in software for full, half or quarter bridge wiring.
Each bridge can be balanced through software, zeroing out unstrained readings.
The 751 also offers automatic recalibration.
How often this occurs is again chosen from software.
USB ports are found on most new computers and a gradually replacing RS232 and parallel interfaces.
Designed for ease-of-use, USB devices like the Microlink 751 can be unplugged and plugged back in as required, with no need to switch off the computer or even restart Windows.
Using USB hubs, the Microlink 751 can be up to 30 metres away from the computer.
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