Demonstration apparatus for self-exited vibration

Demonstration apparatus for self-exited vibration

The utility model relates to a self-oscillation demonstrating device which belongs to an educational affiliation. The self-oscillation demonstrating device relates to the improvement of the self-oscillation demonstrating device during middle school physical class education. The utility model just pr...

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1. Verfasser: BAI XIAOXI
Format: Patent
Sprache:chi ; eng
Schlagworte:
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
PHYSICS
PLANETARIA
SEALS
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description The utility model relates to a self-oscillation demonstrating device which belongs to an educational affiliation. The self-oscillation demonstrating device relates to the improvement of the self-oscillation demonstrating device during middle school physical class education. The utility model just provides a self-oscillation demonstrating device which can demonstrate single resonant self-oscillation and also can demonstrate multi-resonant self-oscillation. The self-oscillation demonstrating device comprises a demonstrating board. In the structural key points, the demonstrating board is provided with a luminous diode LED1 and a loudspeaker; an anode of a battery set is connected with a cathode of the luminous diode LED1 by a slide rheostat R3 and a switch K1; the anode of the luminous diode LED1 is connected with a collector of an audion VT1; the emitters of the audion VT1 and the audion VT2 are connected with the cathode of the battery set; a base electrode of the audion VT1 is connected with the cathode of th
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subjects ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
PHYSICS
PLANETARIA
SEALS
title Demonstration apparatus for self-exited vibration
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