×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

what would you call this device?

what would you call this device?

what would you call this device?

(OP)
Imagine a device which takes an input signal, applies a
tuneable narrow bandpass filter followed by some sort of
gain control and then "emits" the intensity of the result
in one or more ways such as analog meter, audible tone,
bar graph, digital readout, etc.

It's kind of like a spectrum analyzer that can only
analyze one frequency at a time.

Is there a general term for this kind of device?
Thanks!

RE: what would you call this device?

Actually, the old-fashioned spectrum analyzer is as you describe.

TTFN

RE: what would you call this device?

"It's kind of like a spectrum analyzer that can only
analyze one frequency at a time."

Most (all?) RF spectrum analyzers can only deal with one frequency at a time - they just sweep their receiver. It is worth keeping this in mind when looking for transcient signals.

For audio spectrum analyzers, I suppose that FFT systems predominate (cost reasons).

RE: what would you call this device?

selective voltmeter ?

<nbucska@pcperipherals DOT com> subj: eng-tips

RE: what would you call this device?

Narrow band detector

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources