Pasco WA-9867 Sine Wave Generator User Manual

Instruction ManualNo. 012-08678ASine Wave GeneratorWA-9867InstructionsDemonstrationsExperimentsSample Data

Sine Wave Generator Operational Flow Chart10®Operational Flow ChartNORMALSHOWNUMBER OFSTOREDNOTESINC/DECFREQ by 1INC/DECFREQ by 0.1FREQ 0.1FREQ 1.0,(S

Model No. WA-9867 Applications11®ApplicationsOpen Resonance TubeThe resonance tube shown here has both ends open and a fundamental resonance frequenc

Sine Wave Generator Applications12®3. Press and hold the Play key to start Auto Play. The speaker will play 120 Hz, 240 Hz, etc., up to 720 Hz, then r

Model No. WA-9867 Applications13®Vibrating StringThis automated display of a vibrating string is a good example of where the Advanced Mode is useful.

Sine Wave Generator Applications14®

Model No. WA-9867 Sine Wave Generator15®Experiment 1: Standing Waves In StringsIntroductionThe general appearance of waves can be shown by means of st

Sine Wave Generator Standing Waves In Strings16®A stretched string has many natural modes of vibration (three examples are shown above). If the string

Model No. WA-9867 Experiment 1: Standing Waves In Strings17®Setup1. As shown in the picture, clamp the Sine Wave Generator and pulley about 120 cm apa

Sine Wave Generator Standing Waves In Strings18®using a strobe light if one is available. Adjust the strobe frequency to be near the frequency of the

Model No. WA-9867 Experiment 1: Standing Waves In Strings19®Part II:Wave Speed and String DensityTheoryAs stated in Equation 1, the speed of any wave

Sine Wave Generator Model No. WA-9867ContentsIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sine Wave Generator Standing Waves In Strings20®Procedure1. Clamp the String Vibrator about 120 cm from the pulley. Hang about 50 g from the string ov

Model No. WA-9867 Sine Wave Generator21®Experiment 2: Resonance TubesIntroductionIn this experiment you will discover the relationship between the wav

Sine Wave Generator Resonance Tubes22®Part I:Closed Tube of Variable LengthTheoryA resonating tube with one end open and the other end closed will alw

Model No. WA-9867 Experiment 2: Resonance Tubes23®2. Extend the tube to 120 cm. Set the Sine Wave Generator frequency to 50 Hz, and turn up the amplit

Sine Wave Generator Resonance Tubes24®Further Investigations1. Set the frequency to 230 Hz, and extent the tube to 120 cm. Without changing the freque

Model No. WA-9867 Experiment 2: Resonance Tubes25®2. Set up the Sine Wave Generator and the speaker as before. Start with the frequency at 50 Hz and s

Sine Wave Generator Resonance Tubes26®

Model No. WA-9867 Sine Wave Generator27®Experiment 1:Teachers’ Notes–Standing Waves in StringsStringSlope = 97900 Hz2/kg% Deviation = 2%CordSlope = 22

Sine Wave Generator Teachers’ Notes–Standing Waves in Strings28®Elastic CordMinimum Slope = 5890 Hz2/kg% Deviation = 2%Stringm(kg)f(Hz)f2(Hz2)0.055 19

Model No. WA-9867 Experiment 2: Teachers’ Notes–Resonance Tubes29®Experiment 2:Teachers’ Notes–Resonance TubesIf you have twirlable Sound Tubes (SE-86

Model No. WA-9867 Sine Wave Generator3®Sine Wave GeneratorModel No. WA-9867IntroductionThe PASCO Sine Wave Generator supplies adjustable-frequency AC

Sine Wave Generator Teachers’ Notes–Resonance Tubes30®Part IIf1 = 122 Hz (fundamental)λ = (346 m/s)/(122 Hz) = 2.84 mL = 1/2 λ = 1.42 m (effective len

Model No. WA-9867 Sine Wave GeneratorSafetyRead the instructions before using this product. Students should be supervised by their instructors. When u

Sine Wave Generator Setup4®SetupInput PowerConnect the included power supply to the power input of the Sine Wave Generator. Slide the ON/OFF switch to

Model No. WA-9867 Operation5®OperationIn addition to the description given here, there is a complete operational flow chart on page 10.Manual Control

Sine Wave Generator Operation6®1. Turn the Sine Wave Generator on (if it is already on, turn it off for a second, then back on). The initial output fr

Model No. WA-9867 Operation7®Duration of Each NoteWhile in Auto Play mode, you can use the Frequency knobs to change the duration of each note. By de

Sine Wave Generator Operation8®Record a Sequence of NotesIn Record Mode the display will always flicker. When you enter Record Mode, the display shows

Model No. WA-9867 Specifications9®Sequence Start-over: When the last stored note has been played, the Sine Wave Generator wraps around and starts ove