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- From: jfa0522@hertz.njit.edu (john f andrews ece)
- Newsgroups: sci.engr.biomed
- Subject: Re: bio-electric signals
- Message-ID: <1992Nov17.154334.23564@njitgw.njit.edu>
- Date: 17 Nov 92 15:43:34 GMT
- References: <1992Nov12.195100.15386@njitgw.njit.edu>
- Sender: news@njit.edu
- Organization: New Jersey Institute of Technology, Newark, N.J.
- Lines: 52
- Nntp-Posting-Host: hertz.njit.edu
-
- In article <1992Nov12.195100.15386@njitgw.njit.edu> rxy5310@hertz.njit.edu (rolan yang ee stnt) writes:
- > I am just getting into the field of biomedical engineering and I've
- >been doing some reading/tinkering. At the moment, I'm interested in
- >EMG signals and interfacing with microcomputers. Could someone lead
- >me on the right track? What I've been trying to do is amplify signals
- >from an electrode with the 741 op amp (differential mode) and run the
- >signal into a Soundblaster card (commercial audio ADC card). Is it
- >possible for this to work? I've also been writing some software
- >for the "interface" (games, menu programs, toys). Since I haven't been
- >able to get it working, I'm not sure wether it is worth it to pursue.
- >Could someone tell me how accurate/distinct EMG signals are and does it
- >take a lot of adjusting to obtain a clear signal?
- >
- >P.S. I haven't any filters in the circuit. I was hoping to be able
- >to eliminate noise through software. Is it necessary to have
- >hardware filters?
- > rxy5310@hertz.njit.edu
- > (Rolan Yang Wasteland Engineer)
- >
-
-
-
- Well Rolan, since you are at NJIT and you are ECE and you are interested
- in EMG why not stop by 103FAC and visit us?
-
- The Biomed Research Lab in 103FAC is involved with EMG adat acquisition
- and signal processing and there are several of us working on different
- aspects of the topic.
-
- In September Martin Connell gave a presentation on the UL544 specification
- for safety of medical devices, covering in excellent style the ins and
- outs of the circuitry and theories of medical grade isolation. He is
- building an isolated biopotentials amplifier of a rather unique design.
-
- We are deeply involved in motor evoked potentials, including a great
- deal of emg signal processing.
-
- It is never too soon to get involved with the research group, even if
- you start out by attending meetings and listening.
-
- Also, call the Biomedical Engineering BBS at NJIT (201) 596-5679 or
- from on campus simply 5679.
-
- -=john
-
-
- -----------------------------------------------------------------------------
- john f andrews SYSOP The Biomedical Engineering BBS
- 24 hrs 300/1200/2400/4800 (201) 596-5679
- -----------------------------------------------------------------------------
- INTERNET andrews@MagStim.njit.edu CIS 73710,2600
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