|
PHYWE Ultrasonic Michelson-Interferometer |
Learn about:
- Longitudinal waves
- Reflection of longitudinal waves
- Superposition of waves
- Interference
- Interferometer
A semi-permeable membrane divides an ultrasonic wave into two partial packets which travel at right angles to each other. They are subsequently reflected at different hard metal reflectors, one of which is fixed in position, and the other of which can be displaced in the direction of the beam, before being reunited. Shifting the displaceable reflector changes the path length of the corresponding packet, so that super positioning of the reunited partial packets gives maxima and minima of the alternating sound pressure according to the difference in the distance travelled. The wavelength of the ultrasound can be determined from these.
The ultrasonic wave emitted by the transmitter is divided into two partial packets by membrane, which is positioned at 45° to the direction of propagation, as part is reflected and the rest passes through it. Each of the partial packets is completely reflected by metal screens. The packet coming from one of the reflected screens again passes partially through the membrane and travels to receiver, while the packet coming from the same screen is partially reflected at the membrane before travelling to the receiver. When the paths of the packets to receiver are of the same length, they are in phase and the receiver registers an intensity maximum of the alternating sound pressure. When the reflector screen is shifted in the direction of the optical bench, then there is a difference in the path length of the partial packets and so in their phases at the receiver, which results in alternate mutual strengthening or weakening. The receiver registers a succession of minima and maxima for the intensity of the alternating sound pressure.
Includes ultrasonic unit; power supply featuring ultrasonic unit, 5 VDC; ultrasonic transmitter on stem; ultrasonic receiver on stem; analog multimeter; optical profile-bench; slide mounts; metal screen, 30 x 30 cm; translucent screen, 25 x 25 cm; barrel base; stand tube; measuring tape; connecting cords, and manual on CD-ROM.
For your convenience this experiment is available to you as a complete set.
Everything you require to perform the activities are included in the total price.
For assistance in using your new equipment we also offer professional development (WLS1808-24) on all PHYWE line products.
For customization options and pricing please contact your local Cenco representative.
 (0
customer reviews)
|
Customer Reviews
|
 and share your thoughts with other customers
|
|
|
|
|
