LMEC-19 Doppler Effect Experiment Duab Tshwj Xeeb

Kev Sim Txog LMEC-19 Doppler Effect

Kev Piav Qhia Luv:

Ntsuas qhov cuam tshuam ntawm doppler thiab qhov ceev ntawm lub suab. Kev siv cov kev kawm zoo hauv tsev kawm ntawv qib siab.

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Kev sim
1. Lub zaus resonant ntawm ultrasonic transducer;
2. Ntsuas Doppler cov nyhuv
3. Qhov ceev ntawm lub suab yog ntsuas los ntawm Doppler effect.
Cov kev tsis tseem ceeb

Kev piav qhia	Cov Lus Qhia Tshwj Xeeb
Qhov chaw teeb liab fais fab	Lub teeb liab zaus: 20hz ~ 60khz Tus nqi kauj ruam tsawg kawg nkaus: 0.0011 hz Qhov tseeb ntawm zaus: ± 20ppm Qhov hluav taws xob tso zis: 1mv ~ 20vp-p Kev cuam tshuam 50 ohm
Stepping motor lub cev muaj zog tswj kev txav mus los	Kev txav mus los sib npaug 0.01 ~ 0.2m/s kho tau, ua haujlwm zoo thiab tsis zoo. nrog kev tiv thaiv txwv: Photoelectric threshold, kev txwv hloov mus ncig
Doppler zaus hloov pauv	0 txog ± 10Hz
Kev ntsuas qhov zaus ntawm lub kaw lus	±0.02Hz
Kev daws teeb meem ntawm kev ntsuas zaus	0.01hz
Ob txoj kab oscilloscope	Npaj tus kheej