Pulse detection using 8051 microprocessor
Pulse detection using 8051 microprocessor
(OP)
Hi,
I am currently using the philips 8051 to detect a magnet passing an AMR sensor. Does anyone have any ideas or recommended reading to get near 100% detection and near 0% false activation from noise.
In the perfect situation the digitized signal is a single sin-wave pulse with polarity depending on the magnet orientation. In reality this get distorted by magnet speed/offset/angle/etc
The 8051 is 22Mhz with 1kB RAM so I can't really do any complex spectral analysis.
Any suggestion would be wonderful.
Gabriel
I am currently using the philips 8051 to detect a magnet passing an AMR sensor. Does anyone have any ideas or recommended reading to get near 100% detection and near 0% false activation from noise.
In the perfect situation the digitized signal is a single sin-wave pulse with polarity depending on the magnet orientation. In reality this get distorted by magnet speed/offset/angle/etc
The 8051 is 22Mhz with 1kB RAM so I can't really do any complex spectral analysis.
Any suggestion would be wonderful.
Gabriel





RE: Pulse detection using 8051 microprocessor
RE: Pulse detection using 8051 microprocessor
This can only come from a stronger signal, which means a stronger or closer magnet or a lower noise detector, which means possibly a more sensitive detector with integrated low-noise preamp located director at the detector.
TTFN
RE: Pulse detection using 8051 microprocessor
1.) shielding 2.) filtering 3.) amplitude and duration
windowing
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