Some domestic vacuum cleaners on the market use a simple spring loaded mechanical gadget to indicate the blocked pipe and/or full bag. I do beleive some slightly more expensive or new generation vacuum cleaners use some sort of elecronic sensor for this.
Do you know any sensor to detect blocked vacuum pipe and/or full dust bag in a vacuum cleaners? (Part number, specs, suppliers etc?)
The simple trick I can think of is to monitor motor speed which will increase when there is a blockage. Hall effect sensors come and an AVR Atiny microcontroller come to mind.
TC
Use the simple spring loaded mechanical gadget. This is a vacuum indicator. When the hose gets plugged, vacuum within the hose increases because there is less of a hole to suck atmosphere in to. Put a sensor of some sort on this indicator. maybe a simple microswitch, magnetic switch.
Mark Holvek wrote: ;Some domestic vacuum cleaners on the market use a simple spring loaded
;mechanical gadget to indicate the blocked pipe and/or full bag
Perhaps they use a crude differential pressure gauge?
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There could be nothing simpler than a manometer!
r
Thats the word i was looking for. Often found in HVAC filters.
Sounds like the name of one of those strength testers at carnivals/whatever .. Man-O-Meter!
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