Sound Reproduction
G3-31: Spring and Horns
Category: G3 Mechanical Waves - One Dimensional
Purpose:
To audibly illustrate transmission of energy in a mechanical wave
K5-02: PIEZOELECTRIC CRYSTAL - AUDIBLE
Category: K5 Electrical Properties of Matter
Purpose:
Demonstrate that a piezoelectric crystal converts electrical impulses into physical vibrations.
J7-24: BARKHAUSEN EFFECT
Category: J7 Magnetic Materials
Purpose:
Demonstrate flipping of magnetic domains in iron.
H4-92: AUDIO RECORDING - DIGITAL DOMAIN DEMONSTRATION CD
Category: H4 Music
Purpose:
Examples of early digital sound reproduction.
H4-81: AUDIO CART - COMPLETE AUDIO SYSTEM
Category: H4 Music
Purpose:
Show the various components of a reasonably modern audio system.
H4-68: MP3 COMPRESSION
Category: H4 Music
Purpose:
Play and compare various MP3 compressions of a short musical CD excerpt.
H4-67: CD WITH HOLE
Category: H4 Music
Purpose:
See if a compact disc will play even if it has a small hole drilled through it.
H4-66: CROSSOVER NETWORK - LARGE ADVENT
Category: H4 Music
Purpose:
Show circuit and components of a passive crossover network and how the crossover network functions.
H4-65: CROSSOVER NETWORK FOR SPEAKERS
Category: H4 Music
Purpose:
Demonstrate the operation af a crossover network.
H4-64: DISTORTION IN AUDIO AMPLIFIER
Category: H4 Music
Purpose:
Demonstrate distortion due to over-driving an audio ampiflier.
H4-58: MODULATION - AM RADIO
Category: H4 Music
Purpose:
Show amplitude modulation in in AM radio signals.
H4-56: SYNTHESIZER INTRODUCTION - VOLTAGE CONTROL OF FREQUENCY
Category: H4 Music
Purpose:
Illustrate a voltage-controlled frequency device.
H4-52: SPECTRUM ANALYSIS OF MODULATION
Category: H4 Music
Purpose:
Compare and analyze the frequency spectra of various modulated sounds such as tremolo, vibrato, and beats.
H4-51: MODULATION - AM AND FM
Category: H4 Music
Purpose:
Demonstrate AM and FM signal modulation as an introduction to vibrato and tremolo.
H1-32: WAVETEK AND AUDIO CART - EQUAL SOUND LEVEL STEPS
Category: H1 Nature of Sound
Purpose:
Illustrate the effect on the ear of successive changes of exactly 10 dB.
H1-12: VISIBLE WAVEFORMS ON LARGE SPEAKER
Category: H1 Nature of Sound
Purpose:
Show the loudspeaker motion produced by waves of various shapes.
H1-11: MICROPHONE AND OSCILLOSCOPE
Category: H1 Nature of Sound
Purpose:
Show the wave shape of various sounds.
H3-05: KUNDT'S TUBE - OSCILLATOR DRIVEN
Category: H3 Standing Sound Waves
Purpose:
Demonstrate standing waves in an air column.
H2-33: SPEAKER AND EXPONENTIAL HORN
Category: H2 Wave Properties of Sound
Purpose:
Demonstrate the effect of an exponential horn enclosure.
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G3-01 SHIVE WAVE MACHINE - TRAVELING WAVES
Demonstrates traveling waves
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G3-02: SHIVE WAVE MACHINE - SUPERPOSITION OF PULSES
Demonstrate constructive and destructive interference using pulses. Read More
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G3-03: SHIVE WAVE MACHINE - REFLECTION OF PULSES
Demonstrate reflection of pulses from fixed ends and free ends.
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G3-04: SHIVE WAVE MACHINE - STANDING WAVES
Demonstrate standing waves. Read More
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G3-05: SHIVE WAVE MACHINE - PARTIAL REFLECTIONS
Show that a wave will be partially reflected at a point where the impedance changes. Read More
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G3-06: SHIVE WAVE MACHINE - IMPEDANCE MATCHING
Show that no reflection occurs when the impedance of the load (absorber at right) matches the impedance of the wave machine. Read More
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G3-07: SHIVE WAVE MACHINE - TAPERED TRANSFORMER
Useful for obtaining a reasonably good impedance match between the two large segments of the Shive machine. Read More
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G3-08: SHIVE WAVE MACHINE - FABREY-PEROT INTERFEROMETER
Demonstrate the mechanical analog of the optical Fabrey-Perot interferometer. Read More
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G3-09: SHIVE WAVE MACHINE - FREQUENCY FILTERING
Demonstrate the mechanical analog of the optical Fabrey-Perot interferometer. Read More
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G3-10: SHIVE WAVE MACHINE - BRANCHING
Demonstrate branching and recombining with two wave machines in parallel. Read More
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G3-11: SHIVE WAVE MACHINE - RESONANCE ABSORPTION
Demonstrate resonance absorption of wave energy by a mass-on-spring system. Read More
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G3-20: WAVE APPARATUS
Demonstrate transverse and longitudinal wave motion. Read More
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G3-21 TRANSVERSE WAVES ON A LONG SPRING
Demonstrates traveling waves
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G3-23: TRANSVERSE WAVES ON A LONG SPRING - FREE END
Show reflections at a free end. Read More
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G3-24: SLINKY ON LECTURE TABLE - TRAVELING WAVES
Show travelling waves. Read More
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G3-25: SLINKY ON LECTURE TABLE - IMPEDANCE MISMATCH
Show partial reflections and dependence of wave speed on density of the medium. Read More
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G3-26: AIR TRACK - LONGITUDINAL WAVES
Demonstrate longitudinal waves with a series of spring-coupled air track gliders. Read More
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G3-27: AIR TABLE - TRANSVERSE AND LONGITUDINAL WAVES
Demonstrate transverse and longitudinal waves using an air table. Read More
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G3-28 SUSPENDED SLINKY
Shows longitudinal and transverse traveling waves & standing waves
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G3-29: SUSPENDED SLINKY - PORTABLE
Show longitudinal and transverse traveling waves and standing waves. Read More
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G3-31: Spring and Horns
Show sound waves from a mechanical wave Read More
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G3-41: WAVE MODELS - PROJECTION
Demonstrate standing waves, travelling waves, and superposition of waves. Read More
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G3-42: TORSIONAL WAVES
Demonstrate wave phenomena such as traveling waves, standing waves, and reflection of waves Read More
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G3-43 WHIP
Illustrates transverse wave motion.
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G3-45: RESONANCE OF WIRES
Show standing waves in heavy wires fixed at one end. Read More
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G3-46: STANDING WAVES IN A WIRE LOOP
Illustrate circular standing waves; to use as a model of stationary states in atoms corresponding to standing waves of electrons… Read More
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G3-51 ROPE WAVE GENERATOR - FREQUENCY VS. WAVELENGTH
Show standing waves in heavy wires fixed at one end. Read More
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G3-52: ROPE WAVE GENERATOR - ROPE TENSION VS WAVELENGTH
Observe the change in wavelength of a vibrating rope as the tension is varied. Read More
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G3-53 STANDING WAVES IN A STRING
Demonstrates standing waves on a thin string
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