| Software More
information about the tailor made Isometric Software
that works in conjunction with Ultra Stethoscope and the
third party Picoscope Software; which is available from Pico Technology.
Isometric software for a period of 6 months is
supplied free of charge with a purchase of each Ultra Stethoscope.
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Isometric
Software used in conjunction with Ultra Stethoscope
Output
displayed with tailor
made isometric software using an Apple computer.
Frequency components of audio signals generated by the
Ultra Stethoscope are shown.
Another
image of output
displayed with tailor
made isometric software using an Apple computer.
 |
This
image shows how the user can set / vary the
display characteristics when recording the audio
output from the
stethoscope. |
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Isometric
Software used in conjunction with Pico Scope
Output from the Ultrastethoscope can also be captured and
displayed by using PC - based instrumentation and data aquisition produced
by Pico Technology, St Neots, Cambridgeshire PE19 8YP.
The traces aim to allow the user to
demonstrate any abnormal sounds. The switchable filter on the stethoscope body limits
the sensitivity of the device to unwanted environmental noise [
i.e. that coming from sources such as lighting, heating pipes,
refrigerators and pumps ]. The traces allow comparison of data obtained serially. Careful examination of trace qqq shows that instead of a single peak
there are sometimes three close together. In early versions of the stethoscope such traces were common. Investigation showed that these
were due to sound reverberation in the conical capture volume and this problem has now been eliminated by careful design changes.
Continually being improved: This is a recording of heart sounds made with an early version of the
Stethoscope before we introduced features to remove the double and triple peaks which
are believed to be artefacts caused by sound reverberations.
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