Biomedical applications for frequency filters

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Discussion Overview

The discussion revolves around the biomedical applications of various types of frequency filters, specifically low pass, high pass, band pass, and band stop filters. Participants seek to explore how these filters can be utilized in biomedical contexts, including monitoring and sensor applications.

Discussion Character

  • Homework-related
  • Exploratory
  • Technical explanation

Main Points Raised

  • Some participants mention filtering out high frequency noise as a valid application, particularly in relation to handphone signals.
  • There is a question regarding which filter types could be used for filtering high frequency noise.
  • Participants inquire about typical biomedical monitoring applications and the types of biomedical sensors that exist.
  • One participant expresses a lack of resources and knowledge about biomedical applications for filters, noting that this topic is not covered in their textbooks.
  • Another participant asks about the signal bandwidths discussed in various sensor modalities such as EKG, EMG, EEG, and ultrasonic imaging, and the filtering implications of those bandwidths.
  • There is a request for information on common sources of noise for different sensors and what filtering methods would be most effective given the signal and noise characteristics.

Areas of Agreement / Disagreement

The discussion does not appear to reach a consensus, as participants express varying levels of knowledge and seek clarification on the applications of filters without definitive answers being provided.

Contextual Notes

Participants note limitations in available resources and the need for more comprehensive information on the topic, indicating that their understanding is dependent on external literature and may be incomplete.

Deathfish
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Homework Statement



Hi what are some biomedical applications for
- low pass filter
- high pass filter
- band pass filter
- band stop filter


Homework Equations



-nil-

The Attempt at a Solution



filtering out high frequency noise? eg. handphone signals
 
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Deathfish said:

Homework Statement



Hi what are some biomedical applications for
- low pass filter
- high pass filter
- band pass filter
- band stop filter


Homework Equations



-nil-

The Attempt at a Solution



filtering out high frequency noise? eg. handphone signals

Filtering high frequency noise is definitely a valid use. Which filter type(s) could be used for that?

What are typical biomedical monitoring applications? What are typical biomedical sensors? What types (and frequency) signals do each monitor?
 
Hi,

I asked this question on the Electronics board but was asked to post it here... It is not really a homework question but a general enquiry.. I am barely one year into my course and have no idea on biomedical applications for filters. I searched on Google but can't find anything much except preview abstracts from papers (pay to read).. so I really need help on this, it is not really a major component but it helps to be prepared because this area is not mentioned in any of my textbooks. Thanks!
 
any help?
 
Deathfish said:
Hi,

I asked this question on the Electronics board but was asked to post it here... It is not really a homework question but a general enquiry.. I am barely one year into my course and have no idea on biomedical applications for filters. I searched on Google but can't find anything much except preview abstracts from papers (pay to read).. so I really need help on this, it is not really a major component but it helps to be prepared because this area is not mentioned in any of my textbooks. Thanks!

When you read about various sensor modalities, like EKG (EGC), EMG, EEG, Ultrasonic imaging, nuclear magnetic resonance imaging, etc., what signal bandwidths are discussed? What filtering ramifications do you see coming from that...?


EDIT -- And what are some common sources of noise for each of those sensors? What kind of filtering would be most effective given the signal and noise characteristics?
 

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