aIf the motor starts to rotate, there will be induced back EMF that makes thecontrol very complicated in addition to imposed extra rotational losses. 如果马达起动转动,将有使thecontrol非常复杂除强加的额外旋转的损失之外的导致的后面EMF。[translate]...
The invention involves sensing the induced emf produced by the motor during the time interval when the thryistor is "off" and for producing a corresponding feedback signal for controlling switching of the thyristor. The sensed emf is also used to enhance "soft" starting of the motor.NOLA, F...
Following the formula: power density=pulsedensity=pulse repetition frequency ×× single pulse microwave power/surface area of antenna, the power density in Ref. 55 is found to be 3.2W/m2, which is much smaller than the safe limit 10W/m2. It is worth noting that most well-studied MTAI ...
An apparatus for and method of monitoring the operation of a stepper motor used to control the main burner valve of a gas appliance. The gas appliance has a pilot burner. A thermopile thermally coupled to said pilot burner produces an electrical output which powers the stepper motor and a ...
An apparatus for and method of monitoring the operation of a stepper motor used to control the main burner valve of a gas appliance. The gas appliance has a pilot burner. A thermopile thermally coupled to said pilot burner produces an electrical output which powers the stepper motor and a ...
MICROPROCESSOR-BASED DEVICE FOR DIAGNOSING THE INTERTURN INSULATION OF AN ELECTRIC MOTOR BY SELF-INDUCED EMF WITH A MEGOHM METER FUNCTIONFIELD: measuring equipment.;SUBSTANCE: invention relates to electrical measuring equipment, in particular to devices for monitoring the quality of insulation, ...
rthoepchtiamngieziinngthtehsepeicntrtoemgertaetri'sonrestpiomnsee awsitmhinuccehrtaaisn possible, ranges of light intensity is linear, the optimized integration time can be computed by the follow formula: a single-step integration time optimization algorithm is used in this research, which is ...
Data are presented as fractional recovery (Frec) of nuclear fluorescence (minus background) relative to the pre-bleached values, calculated according to the formula: Frec(Fn − b) = (Fn − Fb)/prebleach fluorescence, where Fn is nuclear fluorescence and Fb is background fluorescence. ...