Questions & Answers for: resonant frequency

high-pitched whine After power on (1 or 2 minute(s)) with the volume at 0, a high-pitched whine begins then fades away and begins again. After about 15 minutes it stops. It seems that the whine also ...

...frequency magnetic field. The frequencies are far beyond the fundemental human hearing range, but the sub-harmonics are not. The driving waveforms are mostly sawtooth or square waves in their ...

wocester 37cdi condensing boiler when on low fire makes a reverberating noise that appears to come from fan/burner gas mixing assembaly whentemp arond 50 -55 Does the lit gas vary in amount of flame ?

Vaccum will not remain standing A spike-impulse or "delta function" has an interesting frequency spectrum. It is composed of all possible sine waves of frequencies 1,2,3,4,etc. When a large set of ...

from neutral to drive; you should see a change in the RPMs. Rattles have a resonant frequency and the minor change in engine speed may be causing it to reach resonance, making the rattle more apparent

Nec microwave. Turn table working and fan working but the unt is not heating. Magnetron is no longer function. The magnetron resonates at a specific frequency and outputs energy (microwave frequency) ...

humming sound in engine Dear sir, a couple of years back my brother could not change the ENGINE OIL due to laziness, and gradually the engine started producing a loud humming noise, like "ghooooonnnn"

how to stop water hammer my home two story only in bathroom wine i use the water There will be a section of water pipe which resonates to the vibration the water causes when in use. Find that section,

How do you change the frequency in an audio modulator so it will transmit solid matter. Everything has a frequency so it should be possible. I am working on the idea that where everything resonates at

...resonant frequency, that's why it goes away with speed, it passed the resonant frequency. It's very hard to find because you have to be under the car to see it. If you find something you suspect, ...