Sound Wave observation experimental apparatus
Negotiable /Piece
Min.Order:10 Pieces
Ningbo Huamao International Trading Co., Ltd.
Sound Wave observation experimental apparatus ,This is our new creative series which used for junior middle school Innovation experimental ! new beautiful design and very eash to be used.
PRINCIPLE
The device consists of tuning forks, plate, laser, adjustable-speed motor and switch, etc.
If the motor does not move and the tuning fork, laser emits laser in a small fork on the mirror, the reflection on the mirror and then reflected by the motor will eventually form the backdrop of a point; If at this time the motor rotation; persistence of vision effect , there will be a backdrop of a red laser line.
If knock fork at this time, tuning fork vibrate while a small mirror glass on the tuning fork vibrate too, after which the upper and lower deflection of the reflected laser beam; case backdrop of the sine wave appears sound, the acoustic vibration images.
The whole device specification 350 mm × 260mm × 290mm; using a common base of PVC molding, base size: 350mm × 260mm × 70mm; 10mm high legs using special rubber pads to prevent vibration and slipping.
Background plate fixed on the molding universal cradle and removable; speed motor and laser emitters fixed on acrylic stand; laser head up and down angle adjustable.
Instruments used DC12V2000mA power adapter.
256Hz tuning fork using a standard tuning fork.
Panel mounted power switch and speed potentiometer.