LiteYear
Computer
- Jan 9, 2012
- 442
I'm shopping around for a platform to base a new product of our design on. The product at its heart must autonomously sample and store a number of voltage signals. In this case, the less custom development (hardware and software) the better, so we're willing to pay for off-the-shelf gear. I've found a number of contenders but none that are a perfect match for my requirements. In case I've missed any, can anyone recommend anything that might match this set of requirements?
# channels: at least 8 single ended, preferably 10 and preferably differential
voltage: +/- 10V preferable, no big deal if it's lower
sample rate: >=20kS/s per channel (this limits options severely because it requires about 200kS/s total throughput)
resolution: 12-bit is plenty
storage: >=32GB (also a limiting criteria)
triggering/scheduling/configurable gain/filtering all highly desirable
At this stage I'm entertaining any of these 3 configurations:
1. DAQ card <-> embedded PC <-> solid state storage (eg. PC/104 stack or PCI based industrial PC)
2. PC Peripheral <-> industrial PC <-> hard drive (eg. USB device and industrial PC)
3. All-in-one system (eg. Astro-Med TMX-18 or Measurement Computing LGR-5327)
The industrial PCs are not ideal because of the licensing/configuration of a suitable operating system, and the associated boot up time. But we could design around that.
So far I've identified the following potential suppliers:
Advantech (PC/104 boards for DAQ and CPU, also for industrial PCs)
DATAQ Instruments
Measurement Computing
Labjack
Astro-Med
Prosig
Any further suggestions? Would National Instruments have anything superior?
# channels: at least 8 single ended, preferably 10 and preferably differential
voltage: +/- 10V preferable, no big deal if it's lower
sample rate: >=20kS/s per channel (this limits options severely because it requires about 200kS/s total throughput)
resolution: 12-bit is plenty
storage: >=32GB (also a limiting criteria)
triggering/scheduling/configurable gain/filtering all highly desirable
At this stage I'm entertaining any of these 3 configurations:
1. DAQ card <-> embedded PC <-> solid state storage (eg. PC/104 stack or PCI based industrial PC)
2. PC Peripheral <-> industrial PC <-> hard drive (eg. USB device and industrial PC)
3. All-in-one system (eg. Astro-Med TMX-18 or Measurement Computing LGR-5327)
The industrial PCs are not ideal because of the licensing/configuration of a suitable operating system, and the associated boot up time. But we could design around that.
So far I've identified the following potential suppliers:
Advantech (PC/104 boards for DAQ and CPU, also for industrial PCs)
DATAQ Instruments
Measurement Computing
Labjack
Astro-Med
Prosig
Any further suggestions? Would National Instruments have anything superior?