Pasco WA-9611_13 SONOMETER User Manual

012-03489E5/95© 1988 PASCO scientific $5.00Instruction Manual andExperiment Guide forthe PASCO scientificModel WA-9611, and 9613SONOMETERDETECTORWA-96

6Sonometer 012-03489E➂ Set the function generator to produce a sine wave. Setthe frequency to a value between 100 and 200 Hz. Ad-just the amplitude to

7012-03489E Sonometer➂ You will occasionally see higher and lower fre-quencies superimposed on the primary waveform. Itis possible for multiple standi

8Sonometer 012-03489ETheory of Waves on a Stretched StringResonanceThe analysis above assumes that the standing wave isformed by the superposition of

9012-03489E SonometerIf the analogy with Newton’s Law is accepted, and it isassumed that the wave velocity depends only on tensionand linear density,

10Sonometer 012-03489ENotes:

11012-03489E SonometerExperiment 1: Resonance Modes of a Stretched StringEQUIPMENT NEEDED:– WA-9611 Sonometer – Mass and mass hanger– WA-9613 Driver/D

12Sonometer 012-03489EVibratingWaveformDrivingWaveformOscilliscope ScreenFigure 1.2 String Vibrations at aMultiple of the Driving FrequencyResonant A

13012-03489E SonometerEQUIPMENT NEEDED:– WA-9611 Sonometer – WA-9613 Driver/Detector Coils– Function generator capable of delivering 0.5 amp – Dual tr

14Sonometer 012-03489EString tension(T)HangingMass(mass = M)(weight = Mg)Tension Linear Density Fundamental Wave(T) (µ) Frequency Velocity15234SlotFig

15012-03489E SonometerAnalysis➀ Use your measured string length, the fundamental frequency, and the equation V = λν to determine the velocityof the wa

16Sonometer 012-03489ESuggested Research TopicsThe following are a few suggestions for further experimentation with the Sonometer.➀ Obtain two wires o

17012-03489E SonometerTeacher’s GuideExperiment 1: Resonance Modes of a Stretched StringNoteTo avoid cross-talk between the detector and driver, keept

18Sonometer 012-03489ENoteTo avoid cross-talk between the detector and driver, keepthe detector coil at least 10 cm from the driver coil duringmeasure

19012-03489E SonometerContacting Technical SupportBefore you call the PASCO Technical Support staff itwould be helpful to prepare the following inform

i012-03489E SonometerTable of ContentsSection PageCopyright, Warranty and Equipment Return...iiIntr

iiSonometer 012-03489ECopyright NoticeThe PASCO scientific Model WA-9611 Sonometermanual is copyrighted and all rights reserved. However,permission i

1012-03489E SonometerIntroductionFigure 1 The Sonometer and Suggested AccessoriesDETECTORWA-9613DRIVERWA-9613WA-9611SONOMETERKEEP WEIGHTS AS NEAR TO

2Sonometer 012-03489ETo setup the sonometer (see Figure 2):➀ Choose one of the ten strings and place the brassstring retainer into the slot on the ten

3012-03489E Sonometer➤NOTE: At some lab stations, you may want thetensioning lever to hang over the left end of thetable instead of the right (see Fig

4Sonometer 012-03489E➂ Start the Power Amplifier program and set the outputto a 3-5 V sine wave; then turn on the power ampli-fier. Show channel A and

5012-03489E Sonometer➁ Connect the BNC plug on the Sonometer DetectorCoil to the BNC adapter that is included with theDriver/Detector Coils. Connect t