SOUND

Chladni figures-making sound visible   The Chladni figures are named after the German scientist Ernst Florens Friedrich Chladni (1756-1827). Chladni excited the normal modes of thin metal plates covered with sand by stroking ... more

The Demonstration Monochord investigates the relationship between the pitch of a sound and the length of the string. Also investigate overtones formed by harmonic waves with intermediate nodes and the dependence of the pitch on string tension ... more

Lip whistle for experiments on pitch as a function of resonance space. Closed wooden whistle with a round cross-section and movable piston, chromatic range from g1 (392 Hz) to g² (794 Hz). Frequency range: approx. 400 Hz –800 Hz Resonance ... more

Metallophone for demonstrating a C major scale from c² to g². Note labels, frequencies and frequency ratios are printed on the instrument. With striking hammer. Dimensions: approx. 320x210 mm² Weight: approx. 510 g more

A wooden box open at both ends, with a clamping mechanism for a string to demonstrate the relationship between pitch and string length and the dependence of pitch on string tension. Includes an indicator for the tensioning force, as well as ... more

Speaker that approximates to being a point source for excitation of Kundt tube (1000814), for example.  Frequency range: 100 Hz – 20 kHz Max. load capacity: 10 W Impedance: 8 Ω Shaft: 10 mm dia. Dimensions: 100x135x80 ... more

Ideal sound source for acoustics experiments in the frequency range 60 Hz to 23 kHz. Includes connecting lead with 4 mm safety plugs. Frequency range: 60 Hz to 23 kHz (-10 dB) Power capacity: 100 W (as per IEC 268-5) Impedance: 4 &Omega ... more

Glass tube for demonstrating standing sound waves and calculating wavelengths of sound using cork powder in a method devised by Kundt. Cork powder is spread evenly throughout the tube by means of a filler chute. Then a sound source, e.g. a ... more

Fine cork powder for use in Kundt’s glass tube (U8432840). more

Heating rod K is solely designed for use inside Kundt’s tube E (item no: 1017339). It is designed to heat air or other gases inside Kundt’s tube (max. 50°C). more

The pulse box is for generating electrical squarewave pulses by means of a button. These are then output from the two output sockets, e.g. to a speaker. The pulse box is particularly suitable for use in sample experiments using Kundt&rsquo ... more

The microphone probe (long), like the microphone probe (short) (item no: 4008308), is part of experiments to determine the speed of sound (item no: 8000567 and 8000569). It is also a required accessory for the Kundt's Tube E (item no ... more

This universal dual-channel amplifier is part of experiments for determining the speed of sound (item no: 8000566 and 8000568) and is required accessory for Kundt's Tube E (item no: 1017339). The microphone box is used here together with ... more

This universal dual-channel amplifier is part of experiments for determining the speed of sound (item no: 8000567 and 8000569) and is required accessory for Kundt's Tube E (item no: 1017339). The microphone box is used here together with ... more

The microsecond counter is a component of experiments to determine the speed of sound (item no: 8000566) and a required accessory for Kundt's Tube E (item no: 1017339). The microsecond counter is used in conjunction with the microphone ... more

The microsecond counter is a component of experiments to determine the speed of sound (item no: 8000567) and a required accessory for Kundt's Tube E (item no: 1017339). The microsecond counter is used in conjunction with the microphone ... more

Pair of metal rods with a connecting lead for use with the microphone box in order to start measurements of time for the sound pulses in free space. Length of lead: 75cm Connectors:        2 x 4-mm safety plugs, 3.5mm jack plug Rods:  ... more

The microphone probe  (short), like the microphone probe (long) (item no: 1017342), is part of experiments to determine the speed of sound (item no: 8000567 and 8000569). It is also a required accessory for the Kundt's Tube E (item ... more

Kundt’s tube is used in conjunction with additonal accessories for the qualitative and quantitative investigation of sound waves in air or other gases, using the tube either closed or open. In particular, it is used to measure the wavelength ... more

  Equipment set for investigating propagation of sound and determining the speed of sound in solid rods of various materials. The set includes various test rods, two microphone probes and a microphone box for connection to ... more

  Equipment set for investigating propagation of sound and determining the speed of sound in solid rods of various materials. The set includes various test rods, two microphone probes and a microphone box for connection to ... more

Quincke’s resonance tube is used for demonstrating interference effects in standing sound waves. The equipment set consists of a resonance tube with a millimetre scale which is partially filled with water and is connected to an expansion ... more

Experiment Topics: ·         Directions of sound ·         Determining differences in time for sound  to propagate to left and right ears ... more

Universally deployable digital meter used to determine the sound level of any number of acoustic sources across a wide sound range. Device is housed in a robust plastic casing with integrated calibration signal and large LCD display for easy ... more

Two steel and one nylon string with eyelets, fitting the monochord D(U15100) more

Hollow glass bulb with a narrow tube leading out for demonstrating acoustic resonance. The fundamental oscillation is generated by blowing into the opening or banging on the outside of the bulb. The elasticity and inertial mass of the air ... more

Hollow glass bulb with a narrow tube leading out for demonstrating acoustic resonance. The fundamental oscillation is generated by blowing into the opening or banging on the outside of the bulb. The elasticity and inertial mass of the air ... more

Hollow glass bulb with a narrow tube leading out for demonstrating acoustic resonance. The fundamental oscillation is generated by blowing into the opening or banging on the outside of the bulb. The elasticity and inertial mass of the air ... more

Hollow glass bulb with a narrow tube leading out for demonstrating acoustic resonance. The fundamental oscillation is generated by blowing into the opening or banging on the outside of the bulb. The elasticity and inertial mass of the ... more