You have been hired as an instrumentation engineer for a space company and place
ID: 1765964 • Letter: Y
Question
You have been hired as an instrumentation engineer for a space company and placed in charge of investing in new data acquisition systems for testing rocket engines. Choose a cost-effective system that meets or exceed the following criteria: 2 Analog to Digital Channels 1 Digital to Analog Channel 16-bit resolution for A/D 12-bit resolution for D/A ± 10V input and output range A sampling rate appropriate for recording signal at or below 100,000 · · Provide a list of three boards that meet these criteria, list their specifications in tabular form, and provide a recommendation for purchase. Justify the recommendation in 100 words or less. Hint: The Internet will be an adequate source of information for this problem. Some companies to consider include: Measurement Computing, National Instruments, and Data There are also many others.Explanation / Answer
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Please find below three boards that meet the given criteria and their specs:
Sampling rates
(samples per sec)
NIsbRIO 9627
Single Core
16 channels
16 bits, 10V range
4 channels
16 bits, 10V range
NIsbRIO 9637
Dual Core
16 channels
16 bits, 10V range
4 channels
16 bits, 10V range
4 channels
16 bits, 10V Range
3 channels
12 bits, 10V range
From the three processors listed above, the TMS processor will be favoured because of low cost and powerful core. Also, the sampling frequencies for the TMA processor is almost 10 times higher than the corresponding NI devices, giving the added advantage of designing faster applications. Moreover, TI devices also have plug-n-play architecture, in which system expansion can be easily achieved.
Name A-D specs D-A SpecsSampling rates
(samples per sec)
NIsbRIO 9627
Single Core
16 channels
16 bits, 10V range
4 channels
16 bits, 10V range
200,000NIsbRIO 9637
Dual Core
16 channels
16 bits, 10V range
4 channels
16 bits, 10V range
200,000 TMS320F2837xD4 channels
16 bits, 10V Range
3 channels
12 bits, 10V range
1400,0000Related Questions
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