Matches 1 - 25 out of 25

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US20140028292 IDENTIFICATION SYSTEM AND ELECTRONIC SYSTEM FOR IDENTIFYING A FAN TYPE OF A FAN  
A fan identification system identifies a fan type of a fan in an electronic system. The fan identification system includes a controller that includes: a setting module for setting a fan...
US20140035562 METHOD, IDENTIFICATION SYSTEM, AND ELECTRONIC SYSTEM FOR IDENTIFYING A FAN TYPE OF A FAN  
Disclosed is a method for identifying a fan type of a fan in an electronic system having a controller. The method includes: setting a fan identification characteristic value, the fan...
US20070216398 Speed indication for pump condition monitoring  
A method and apparatus are provided for obtaining the rotational speed of a pump system or other suitable rotating equipment having a self-contained pump electrical equipment power supply. The...
US20080106256 Revolution indicator and a program for the revolution indicator  
The object of the invention is providing a revolution indicator and a program for the indicator, which can detect a varying number of revolutions precisely. The indicator includes: a detecting...
US20080211440 MEASUREMENT OF SPEED AND DIRECTION OF COASTING PERMANENT MAGNET SYNCHRONOUS MOTOR  
A method for determining the speed of rotation of an unpowered, coasting electric motor, driven, when powered, by an electronic inverter, and without activating switches of the inverter. The steps...
US20140247038 FAN SPEED TESTING DEVICE  
A fan speed testing device is provided. The device includes a power jack, a voltage conversion module, a first fan connector, a DIP switch, and a control module. The first fan connector receives...
US20050200349 Method and apparatus of determining gas turbine shaft speed  
A method and apparatus for determining a gas turbine shaft speed using a signal obtained from an alternator driven by the gas turbine shaft. Frequency information of the signal, indicative of...
US20080224691 METHOD FOR TESTING ROTATION SPEED OF FAN  
An exemplary method for testing rotating speed of a fan, includes the following steps: coupling a fan and a resistor in series to a power supply; coupling an oscilloscope in parallel with the...
US20130069634 SPEED SENSOR COMPRISING A COSTAS LOOP  
A speed sensor including at least one sensor element and an analog-to-digital converter that digitizes the output signals of the at least one sensor element, and a Costas loop unit that is...
US20140035561 VARIABLE RELUCTANCE SENSOR INTERFACE WITH INTEGRATION BASED ARMING THRESHOLD  
An interface for processing a variable reluctance sensor signal provided by a variable reluctance sensor including an integrator, an arming comparator and a detect circuit. The integrator includes...
US20130038319 PLASTIC SPEED TARGET WHEEL AND METHOD OF MANUFACTURE  
A speed target wheel includes an annular body portion and a plurality of gear teeth. The annular body portion consists of a plastic material and the plurality of gear teeth project from the...
US20100327853 PHASE LOCKED LOOP FOR CONTROLLING MOTOR AND SPINDLE MOTOR USING THE SAME  
A PLL for controlling a motor includes first and second feedback loops. The first feedback loop includes an oscillator for generating a signal having a frequency corresponding to an input voltage,...
US20080042643 Method for Detecting Operating Parameters of a Power Tool Comprising an Internal Combustion Engine  
In a method for detecting an operating parameter of a power tool having an internal combustion engine with a cylinder, a piston delimiting a combustion chamber in the cylinder and driving a...
US20090009220 Signal generating apparatus, periodic-signal observing system, integrated circuit, periodic-signal observing method, and method of testing integrated circuit  
A signal generating apparatus having an LSI circuit in which a plurality of cycle-observing signals are generated to be output via an I/O circuit to a device outside the LSI circuit in order to...
US20090021242 DEVICE AND METHOD FOR MEASURING A QUANTITY REPRESENTING THE ROTATIONAL SPEED OF A MOTOR VEHICLE AND SYSTEM AND METHOD USING SAID DEVICE AND METHOD  
The invention concerns a device for measuring a quantity representing the rotational speed of a motor vehicle wheel (14ag, 14ad, 14rg, 14rd), comprising means (22ag, 22ad, 22rg, 22rd) for coding...
US20100117628 SENSOR FOR THE DETERMINATION OF LOW (ZERO REVOLUTION) AND FAST REVOLUTIONS AS WELL AS FOR THE SIMULTANEOUS DETERMINATION OF DIRECTION OF ROTATION  
A measurement of a lower and a higher speed of rotation is taking place via the inductive sensor. A sensor unit, which comprises a pulse generator, a transmitter side and a receiver side, is used...
US20130342189 ROTATIONAL DEVICE  
A rotational device comprises a first portion, a rotatable body rotatable relative to the first portion and comprising at least one salient member, and a speed sensor arrangement for use in...
US20140253104 METHOD OF DETERMINING A ROTOR DISPLACEMENT ANGLE  
A method of determining a rotor displacement angle of a synchronous generator having a rotor and electrically connected to a power supply network uses at least one rotary speed measuring device....
US20100264908 SHAFT SPEED SENSOR WITH ANALOG OUTPUT  
A 2-wire, loop-powered shaft rotational speed sensor device that outputs a 4-20 mA current in response to the shaft rotational speed. The device is comprised of a sensor that senses an output from...
US20150160254 INDUCTIVE ROTATIONAL SPEED SENSORS  
An inductive rotational speed sensor assembly includes a first PCB with a transmitter coil configured to convert an alternating electrical input into an alternating magnetic field. A second PCB is...
US20100213929 ROTOR BLADE SENSOR  
A rotor blade sensor for detecting a rotor blade (430) comprising an electrical oscillator arranged to generate an oscillating signal. An antenna (300) includes a coil (100) having one or two...
US20170131321 LOW WHEEL SPEED DETECTION UTILIZING VARIABLE RELUCTANCE SPEED TRANSDUCER  
Systems and methods for detecting wheel speed are provided. An electric circuit for detecting a speed of a wheel may comprise: a transducer in electronic communication with an operational...
US20160121420 SYSTEM AND METHOD FOR MEASURING ROTATION OF A WIRE FEED MECHANISM  
A feed roller rotation measurement system includes a voltage tuned oscillator (VTO) having a capacitor and an inductor coupled to each other. The VTO is configured to be disposed adjacent a shaped...
US20160054348 VEHICLE WHEEL SPEED SENSOR PROTECTION STRUCTURE  
In a vehicle including a pulse ring that rotates together with a wheel, a wheel speed sensor that has a detection portion close to the pulse ring, and a bracket that fixes the wheel speed sensor,...
US20150346233 WIRELESS SPEED SENSOR  
A speed and position sensing device designed for retrofitting onto the wheel of a vehicle is provided. The provided sensor transmits measurement data by means of wireless communications and thus...
Matches 1 - 25 out of 25