Knock Detectors

[gene]

Now if we can get the digesters, lurkers, and junk yard searchers to spot
the correct cars in the junk yards we can get these sensors for almost free.

I wonder if the wonderful ol Onan is quiet enough I could put one there to
listen for warning signals ??

Maybe these would be good for listening for bad bearings ??

I love these solid state devices. No power required and they last forever.

Now we could get Henry or John to program a DSP to look at the FFT of the
frequency of the damped sine wave to determine the failure mode of the
rotating mechanical components ...... Nah, I am going for a blinking light.

gene

gene

Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/

 

[gene]

Glad to hear about the sensitivity control, I would think there would need
to be one, have to get over the noise of the engine and just look for
knocks. We will have to see how the loading goes.
gene

>In a message dated 10/31/1999 8:34:56 AM Central Standard Time,

>
>> frequency of the damped sine wave to determine the failure mode of the
>> rotating mechanical components ...... Nah, I am going for a blinking
>> light.
>>
>Gene
>
>I am installing the Caspro spark retard unit on my lady. Emery tells
>me that there is a sensitivity control on the unit. My theory and hope
>is that I can drive both the light and the retard unit off one sensor. I
>was really surprised that the Caspro unit has no way of telling if it is
>working. Hope your circuit does not eat up to much of the voltage
>put out by the sender.
>
>Take Care
>Arch
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/

 

[gene]

that was mainly BS for Henry. Just want to keep him in the loop.

gene

>In a message dated 10/31/1999 9:34:45 AM Eastern Standard Time,

>
>> DSP to look at the FFT of the
>> frequency of the damped sine wave to determine the failure mode of the
>> rotating mechanical components ....
>
>Hey Eugene!!!!
>
>Now what pleasure do I get out of reading a post like this? It is
>basically the same as reading Chinese for me! Please tell me what a DSP ,
>FFT, and damped sine way are/do? Come on Eugene, I want to be put on your
>"need to know" list. .
>
>Scott
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/