170974 ⎘
Measuring linear or angular speed; Measuring differences of linear or angular speeds; Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general by using circuits for the detection of the pulses delivered by the ignition system of an internal combustion engine
Method for assessing a rotational speed of an engine
#2Virtual tachometers based on time series filtering
#3Direct current motor controlling apparatus and method thereof
#4METHOD FOR DETERMINING TRAFFIC CONDITIONS
#5Engine rotating meter
#6System and method for driving a tachometer