User's Manual

ManualsBrandsPASCO Specialty & Mfg. ManualsOtherCI-6506B

Instruction Sheet

for the PASCO

Model CI-6506B

SOUND SENSOR

012-06296B

Author: Sunny Bishop

Introduction

The PASCO CI-6506B Sound Sensor is designed to be

used with a PASCO computer interface to make

measurements of relative intensity of sound.

The 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 16,000 Hz).

Two stages of amplification are provided to condition the

low-level signal from the microphone for input into the

Science Workshop computer interface. The output from

the sensor is bipolar and ranges between ±10 volts. When

the sensitivity is raised to high in Science Workshop (700

interface only), the Sound Sensor detects 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.

The Oscilloscope and Fast Fourier Transform (FFT)

functions of Science Workshop may be used effectively

Equipment Included:

• sound sensor in sensor box

• 6-foot cable with 8-pin DIN connectors

Additional Equipment Required:

• Any PASCO Science Workshop



computer interface

(300, 500, or 700 series for Macintosh or Windows)

or the 6500 series interface for DOS

with the Sound Sensor: the Oscilloscope allows the

student to view the Sound Sensor output directly, and the

FFT function will transform the time domain signal from

the sensor to a frequency domain display. These two

functions allow the student to investigate the frequency

composition of sound produced by the human voice, a

tuning fork, or loud speaker driven by a complex

waveform such as a square wave. Both the Oscilloscope

and FFT functions may be used simultaneously.

The Sound Sensor can be plugged directly into any

PASCO computer interface box or can be connected to the

interface box using the supplied cable with 8-pin DIN

connectors.

SOUND

SENSOR

CI-6506B

aperture for sensor

Sound Sensor

interface cable with

DIN connectors

DIN connector

to computer interface

Summary of content (4 pages)

PAGE 1
012-06296B Instruction Sheet for the PASCO Model CI-6506B SOUND SENSOR DIN connector interface cable with DIN connectors Sound Sensor 6B 50 -6 CI D UN R SONSO SE aperture for sensor to computer interface Introduction The PASCO CI-6506B Sound Sensor is designed to be used with a PASCO computer interface to make measurements of relative intensity of sound.
PAGE 2
Sound Sensor 012-06296B Additional Equipment Suggested: • Tuning Forks (SE-9325 or SE-9326) • Organ Pipe with Sliding Piston (SF-9328) • Acoustics Demonstration Disk (SF-9410) Figure 1. Connecting the Sound Sensor into the computer interface. ➁ Open the Experiment Setup window in Setup Procedure ➀ Connect the Sound Sensor and any analog channel on ScienceWorkshop. Click and drag the analog plug icon to the analog channel icon that matches the analog port you are using for the Sound Sensor (Figure 2).
PAGE 3
Sound Sensor 012-06296B Mounting on an Experimental Apparatus ➀ Use the 1/4-20 screw connector located on the bottom of the sensor box to secure the Sound Sensor to an experimental apparatus (Figure 6). The alignment hole fits over an alignment pin included on some PASCO apparatuses. alignment hole 1/4-20 screw connector Figure 4. Opening a Display window in ScienceWorkshop. ➄ Additional display windows can be opened by following the procedure in step 4.
PAGE 4
Sound Sensor 012-06296B Copyright, Warranty, and Equipment Return Please—Feel free to duplicate this manual subject to the copyright restrictions below. Copyright Notice Equipment Return The PASCO scientific 012-06296A instruction sheet is copyrighted and all rights reserved. However, permission is granted to non-profit educational institutions for reproduction of any part of the Sound Sensor instruction sheet providing the reproductions are used only for their laboratories and are not sold for profit.