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Pohl's Torsion Pendulum
Experiment topics:
• Free rotary oscillations at various degrees of damping (oscillations with moderate damping, aperiodic oscillations and aperiodic borderline case)
• Forced oscillations and their resonance curves at various degrees of damping
• Phase displacement between the exciter and resonator during resonance
• Chaotic rotary oscillations
For investigating free, forced and chaotic oscillations at various degrees of damping.
With slotted scale ring and pointers on resonator and exciter.
An electric motor is included for exciting forced oscillations. It features coarse and fine speed adjustment and is coupled via an eccentric wheel. For damping, an electromagnetic eddy brake is used.
The equipment can also be used in demonstrations involving projection of shadows.
Natural frequency: approx. 0.5 Hz.
Excitation frequency: 0 to 1.3 Hz
Connectors: 4-mm safety sockets
Motor: max. 24 V AC/DC, 0.7 A
Eddy brake: 0 to 2 A DC, 20 V
Scale ring: 300 mm dia.
Dimensions: 400x140x270 mm³
Weight: 4 kg
Analogue Multimeter AM50
Hand-held multimeter for measuring voltage and current for a wide range of applications in student and practical experiments. A heavy-duty device with excellent overload protection, zero point of scale center or left and automatic battery cut-off after ...
Item: U17450
$ 141.00
DC Power Supply 0 - 20 V, 0 - 5 A (115 V, 50/60 Hz)
Universal power supply with digital current and voltage display. Output voltage and output current are continuously adjustable. The device can be used as a constant voltage source with current limiting or as a constant current source with voltage limiting ...
Item: U33020-115
$ 240.00
DC Power Supply 0 - 20 V, 0 - 5 A (230 V, 50/60 Hz)
Universal power supply with digital current and voltage display. Output voltage and output current are continuously adjustable. The device can be used as a constant voltage source with current limiting or as a constant current source with voltage limiting ...
Item: U33020-230
$ 290.00
DC Power Supply for Torsion Pendulum (115 V, 50/60 Hz)
For supplying Pohl's torsion pendulum (U15040) with the required stabilized and regulated direct voltage for the electromotor and eddy-current brake.
Output voltages: 24 V DC, 1 A (fixed) 0 to 24 V DC, 2 A (continuously adjustable),
Stability under ...
Item: U11755-115
$ 485.00
$ 315.80
