Sound Waves & Oscillations

Catalogue No: 1120110

Ultrasonic transmitter and receiver operating in 40 KHz frequency region enclosed in plastic enclosures (142 x 80 x 43) mm approx. 2 KHz modulating frequency is transmitted by ultrasonic transmitter and detected by receiver, which amplifies the signal and drives a internal loudspeaker. Output signal can also be visualized on a CRO for more quantitative measurements through 4mm sockets fitted on the receiver.
Transmitter is supplied with two ultrasonic transducer, both can be switched ON simultaneously when required to produce two coherent sources. Interference pattern can be dramatically demonstrated and simplifying the Young’s Slits experiment by using waves rather than light on moving the receiver along a line parallel to the sources. The system uses the sound waves above the hearing threshold and demonstrating the reflection properties linked with ‘SONAR’ etc.
* ULTRASONIC SYSTEM

Pack of (Pcs): 1

Catalogue No: 1120340

Provides mechanical oscillation as per the input from a suitable oscillator or signal generator. The coil system is designed to enable the unit to operate at its maximum rating for longer period without any damage due to overheating. Its frequency response encompasses almost whole of the audio spectrum. Output available through a metal shaft at the top which also has 4mm hole for mounting of accessories. Coil provided with a locking arrangement.
* Vibration Generator

Pack of (Pcs): 1

Catalogue No: 1120020

Useful for demonstrating wave motion. Made of steel wire close-wound helix of about 19mm diameter and closed length of about 3m extending up to 9m approx. With looped ends.
* Wave Form Helix, Long

Pack of (Pcs): 1

Catalogue No: 1120040/1

* For demonstrating longitudinal wave motion.
* Helical coil of flat section of tempered steel wire.
* Coil diameter 7.5cm, closed length 10cm

Pack of (Pcs): 1

Catalogue No: 1120108

An outstanding version of the classic wave machine. This device consists of a series of pendulums independently suspended on a common base and coupled together by long-light springs. Two modules are included, each with 43 pendulums, a damping unit with a paddle and water bath and a motor-powered eccentric driver for controlled excitation of waves. Coupling hardware is supplied so that the demonstrator can be used with either a single module or with both modules coupled to make a longer machine. The ends of the pendulums are colored bright yellow, while the rest of the machine is black, so the wave patterns are prominent and clearly visible. Basic phenomena in transverse wave propagation can be clearly shown. Using the damping module, running waves can be enerated to illustrate the concepts of wavelength and frequency. Standing wave patterns, wave reflection and superposition can be shown when the damping module is removed. A mechanical brake is also included so that all of the pendulums can be stopped instantaneously, freezing the
wave pattern in place for more detailed discussion. Waves can also be excited by hand.
* Wave Motion Demonstrator

Pack of (Set): 1

Catalogue No: 1120640

For demonstrating the various effects associated with the rotation of accessories mounted on it. Cast metal body, stands overall height about 43cm and high can be used in both vertical as well as horizontal position. A cast metal adjustable driving wheel fitted towards the lower end of the stand drives a small pulley near the top through a belt. The driven pulley carries a spindle with socket for taking various accessories. Suitable for use with Savart’s Toothed wheel and disc and an adapter to accommodate colour discs.
* WHIRLING TABLE

Pack of (Pcs): 1