PASCO Specialty & Mfg. CI-6506B User Manual download pdf

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

1 2 3 4

Summary of Contents

Page 1 - SOUND SENSOR

Page 2 - Sound Sensor

012-06296B2Sound Sensor®➁ Open the Experiment Setup window inScience Workshop. Click and drag the analog plug iconto the analog channel icon that matc

Page 3 - Science Workshop

012-06296BSound Sensor®3Calibration and Sensitivity Adjustment inScience Workshop➀ To open the Sound Sensor's calibration window,double-click on

Page 4

012-06296B4Sound Sensor®Equipment ReturnShould the product have to be returned to PASCOscientific for any reason, notify PASCO scientific byletter, ph

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PASCO Specialty & Mfg. CI-6506B User Manual

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