Reference Guide
012-15849A
Sound Sensor
UI-5101
800-772-8700 (US)
+1 916 462 8384
www.pasco.com
Hardware
Introduction
The Sound Sensor is designed to be used with a PASCO
computer interface to make measurements of relative
intensity of sound.
The built-in sensing element of the Sound Sensor is an
electret condenser microphone, which consists of an
electret membrane, metal electrode, and field effect
transistor that are in an efficient configuration yielding
superior signal-to-noise ratios (>60 dB) and excellent
frequency response (20 to 9,000 Hz).
Two stages of amplification are provided to condition the
low-level signal from the microphone for input into the
PASCO computer interface. The output from the sensor is
bipolar and ranges between ±10 volts. The Sound Sensor
can detect voltage levels as low as 0.0005 volts,
corresponding to sound levels that are barely audible to the
human ear. Sound levels ranging from classroom
background noise (45 dB) to levels exceeding 100 dB are
easily detected with the Sound Sensor.
Mini Microphone
8-Pin DIN
Extension Cable
Sensor Mounting
Rod
Connect this end
to the interface.
Phone
Jack
Built-in
Microphone
DIN
Plug
Foam
Cover
Tie
Clip
Included Equipment
Sound Sensor (UI-5101)
Mini Microphone (UI-5102)
8-Pin DIN Extension Cable (UI-5218)
Sensor Mounting Rod
