Breckland Scientific 2023 Catalogue

Sound & StandingWaves

Waves

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1 SLINKY SPRINGS Slinky-type steel springs, useful for demonstrating wave motion when placed on a bench top, e.g. transverse and longitudinal waves. Also suitable to show the reflection of pulses. Cat No. Description Dia. x Closed Length Price Per SWA-400-100 Slinky Spring 50mm x 75mm 5.14 ea. SWA-400-150 Slinky Spring 75mm x 100mm 7.20 ea. SWA-400-200 Slinky Spring 70mm x 165mm 9.85 ea. 2 WAVE MACHINE For demonstrating both longitudinal as well as transverse waves simultaneously. Comprises a number of circular discs mounted equidistant from each others on a horizontal shaft in gradually varying degrees of eccentricity, with each disc having a vertical rod of same length supported on top and sliding up and down in a guide. 8 of the rods are L-shaped and slide into a vertical guide to depict longitudinal wave motion. The rotating handle is fitted with a circular scale marked in degrees to indicate the amount of rotation. Cat No. Description Price Per SWA-950-100 Wave Machine 49.29 ea. 3 LASCELLS STROBE FREQUENCY COUNTER The Lascells Strobe Frequency Counter provides a compact, economic, reliable and simple way of detecting the frequency of a strobe light source. Although designed to work with the Lascells ripple tank, allowing a quick measurement of strobe frequency, the unit can also work other strobe light sources. To use, simply turn the device on, place it onto a closed mini ripple tank or facing a strobe light source and the frequency of the strobe will be displayed. The device is accurate from 1 Hz to 1 kHz (which exceeds the strobe range of a Lascells ripple tank). Comes with rubber feet to protect ripple tank top surface and is supplied with full instructions. Dimensions: 76 x 52 x 30 mm (l x w x h). Requires a 9V PP3 type battery (not included). • Quickly displays frequency of a strobe light source 4 ELASTICATED CORD Black elasticated cord, ideal for connecting to a vibration generator for standing wave demonstrations, as an alternative to string. Supplied in a 10 m length. Cat No. Description Price Per SWA-070-100 Elasticated Cord 11.66 10m 5 LASCELLS STATIONARY WAVE APPARATUS Completely self- contained and ready to use at a moment’s notice with minimal setting-up required. Just connect a laboratory signal generator (not included) to the 4mm sockets of the integral vibration transducer, adjust the tension in the string to the required value by sliding the spring balance assembly and away you go. As the frequency of the generator is varied the first harmonic can be found and then all the others up to the 7th or 8th. The string length can be easily varied if required by moving the end peg and the main arm can be detached if required to facilitate storage. Cat No. Description Price Per SWA-735-100 Stationary Wave Apparatus 149.18 ea. • Suitable for use with most strobe lights • Range: 1 Hz to 1 kHz with 1 Hz resolution • On-Off switch to conserve battery • Bright, easy to read LED display Cat No. Description Price Per SWA-290-100 Strobe Frequency Counter 20.50 ea.

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Slinky Springs

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Wave Machine

Strobe Frequency Counter

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Elasticated Cord

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Lascells Stationary Wave Apparatus

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