let t is the number of teeth on rotor
{"Image DocumentName": "Let T is the number of teeth on rotor.", "Image ImageDescription": "N is the number of revolutions per second. P is the number of pulses per second. Then. If the rotor has 60 teeth and the counter counts the pulses in one Second. Then the counter will directly display the speed in rpm. 9AEI", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}