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No, it is illegal.
A digital tachometer measures the speed of objects. They measure the rotations of an engine shaft in a car and then record the number of revolutions per minute on a dial.
www.checkline.com provides the opportunity of comparision of portable tachometers. they offer a complete line of Tachometer, Contact Tachometer and Combination Digital Hand-Held Tachometer.
John Hone Bartol has written: 'A digital tachometer/accelerometer'
THERE ARE TWO TYPES OF TACHOMETER. 1.D.C. TACHOMETER 2.A.C. TACHOMETER ALSO DIGITAL TACHOMETERS CAN BE CONSTRUCTED using various principles..... D.C. TACHOMETER its construction is very similar to a D.c. generator. it works on the principle of generation of emf wen a rotating conductor cuts the magnetic flux......when magnetic flux is constant then the emf produce is directly proportional to the speed of the armature that is coupled to the shaft of motor. A.C. tachometer its construction is similar to a two phase servo motor.... and works conversly of it....
Laser tachometer are instruments used to measure the rotation speed of a shaft or disk, as in motor or other machine. They usually display the revolutions per minute (RPM) on a calibrated analogue dial or digital display.
The digital meters measure frequency by counting the number of input pulses which occur in short period of time called gating period
Another name for graphics is: digital images.
Yes, the devices need to have Digital Audio Input and Outputs for this to be possible.
A feedback control system can be made involving microcontroller 8051, inverter(gating circuit), power processing unit, induction motor whose speed is measured via digital tachometer. The microcontroller will act as a Frequency Counter, Comparator and PID Controller. The output from tachometer(digital) will be given to microcontroller which will compare this to the reference signal and then pass the control signal to gating circuit.The power unit's output will be given to motor.
digital signal processor
Boolean Algebra