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Oscar,
Regarding your decision between Biopac and Noraxon; I can give some
insight to Biopac after using it for 2 years:
1. They have made it very simple to hook in different transducers, from
EMG to strain gauges to accelerometers, etc. Use their transducers or someone
elses, it is still easy. An important issue if you have scattered lab parts.
2. Do not use the Biopac electrodes (non pre-amped). For some reason the
adhesive collars do not stick well to the electrode. Perhaps it is due to the
small adhesive contact area, but regardless, they are always coming off, gel
getting everywhere, taking time from the lab experiment. I first resorted to
taping each electrode down with Conform athletic tape. Then I did the smart
thing and bought other electrodes (Sensor-Medics).
3. The Biopac pre-amped electrodes are, I'm almost 100% sure, Vicon (B & L
Engineering) units. Buy them through Vicon, save $100+, but be sure you
can wire them up correctly to the Biopac unit. The wires are AWFULLY
small for the solderly-challenged among us to rig up firmly.
4. The Acknowledge software interface works pretty well and is user-friendly
enough for the students. The biggest drawback is a lack of a macro-type function
to perform repetitive functions automatically (at least this was not an option on
my version). If you have many trials to analyze, each with a series of data
processing functions, then be prepared for drudgery. Or, fill a grad student
with a lot of coffee and let them have a go at it.
My 2 cents.
Jeff Ives, Ph.D.
Dept. Exercise Science
Ithaca College
Ithaca, NY 14850
jives@ithaca.edu
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Regarding your decision between Biopac and Noraxon; I can give some
insight to Biopac after using it for 2 years:
1. They have made it very simple to hook in different transducers, from
EMG to strain gauges to accelerometers, etc. Use their transducers or someone
elses, it is still easy. An important issue if you have scattered lab parts.
2. Do not use the Biopac electrodes (non pre-amped). For some reason the
adhesive collars do not stick well to the electrode. Perhaps it is due to the
small adhesive contact area, but regardless, they are always coming off, gel
getting everywhere, taking time from the lab experiment. I first resorted to
taping each electrode down with Conform athletic tape. Then I did the smart
thing and bought other electrodes (Sensor-Medics).
3. The Biopac pre-amped electrodes are, I'm almost 100% sure, Vicon (B & L
Engineering) units. Buy them through Vicon, save $100+, but be sure you
can wire them up correctly to the Biopac unit. The wires are AWFULLY
small for the solderly-challenged among us to rig up firmly.
4. The Acknowledge software interface works pretty well and is user-friendly
enough for the students. The biggest drawback is a lack of a macro-type function
to perform repetitive functions automatically (at least this was not an option on
my version). If you have many trials to analyze, each with a series of data
processing functions, then be prepared for drudgery. Or, fill a grad student
with a lot of coffee and let them have a go at it.
My 2 cents.
Jeff Ives, Ph.D.
Dept. Exercise Science
Ithaca College
Ithaca, NY 14850
jives@ithaca.edu
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For more information: http://www.kin.ucalgary.ca/isb/biomch-l.html
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