S o u n d L e v e l S e n s o r
S p e c i f i ca t i o n s
2
•
Start the PASCO data acquisition software. Set up a data
display in the software.
Using PASCO Capstone Software
•
Click the “Data Summary” icon in the Tools palette to
open the “Data Summary” panel. Click the “Visibility”
icon to see the list of measurements that are visible by
default.
•
Click one of the display templates in the Capstone work-
book page, or double-click an icon in the “Displays”
palette to select a specific data display.
Using SPARKvue Software
•
Connect the sensor to a SPARK Science device and start
the software. In SPARKvue, the sensor parameter screen
opens and shows the list of measurements for the sensor.
•
In the sensor parameter screen, touch a measurement to
highlight it, and then touch ‘Show’ to open a graph dis-
play.
Using Xplorer GLX Datalogger
•
When you connect the sensor to the Xplorer GLX Data-
logger, a Digits display of Sound Level (dBC) and
Sound Intensity automatically opens.
Select the Range
Press one of the buttons (Voice, Horn, Plane) on the top of
the sensor to select the Sound Level and Sound Intensity
Range. A green light emitting diode (LED) in the button will
illuminate.
Record Data
•
Click “Record”, touch ‘Start’, or press the ‘Record’ but-
ton to begin recording data.
Specifications
Sound Scales
Sound Level dBC
: The dBC weighting scale corresponds to
the total sound level generated by a diffracted sound emis-
sion, such s from machinery, a motor, or a plane at take off.
The dBC displays a wider frequency spectrum than the dBA
weighting scale because, unlike the dBA scale, the noise is
not filtered.
Sound Level dBA
: The dBA weighting scale filters some of
the sound frequencies from a sound source to more closely
match the frequency response of the human ear. The dBA
scale is commonly used in the workplace to determine the
sound level and employee will experience in typical working
conditions.
Sensor
PASPORT
Input Port
Interface
Visibility
icon
Touch a
measurement
Touch “Show”
Item
Value
Sound Level Range:
(dBC and dBA)
Voice: 30 to 70 decibels
Horn: 50 to 90 decibels
Plane: 70 to 110 decibels
Sound Intensity Range:
Voice: 0.001 to 10
W/m
2
Horn: 1 to 1000
W/m
2
Plane: 10 to 10,000
W/m
2
Accuracy:
±2 dB at 94 dB (or dBC) at 1 kHz
Resolution:
0.1 dB
Repeatability:
0.1 dB
