vdd Posted December 8, 2006 Report Share Posted December 8, 2006 Hi ,I am really fixed on this thing.Let me explain my application in brief.I have a inductive proxi switch and I want to convert this into analog Inductive sensor.So right now i am sensing the current which flows through the oscillator when the target approaches the sensor . This is ok and the plot is exponential . Now the difficult task is to convert this voltage into the range of 1 to !0 Volts . As the plot is non-linear it has become very difficult for me to convert this into linear 1-10V.Also I cannot use the digital technique because of size.vdd ??? Quote Link to comment Share on other sites More sharing options...
Professor Posted December 9, 2006 Report Share Posted December 9, 2006 You can use an anti-log filter (bjt in fb loop of an op amp) or use an A/D via a PIC and do a table lookup approach. Quote Link to comment Share on other sites More sharing options...
ante Posted December 10, 2006 Report Share Posted December 10, 2006 Hi vdd,If you can “open up” the proxi sw you will find a Schmitt trigger in the circuit, this is what makes the output a switch. The circuit before the Schmitt trigger is an analog inductive sensor. Quote Link to comment Share on other sites More sharing options...
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