Abstract:
The present application relates to a flight mill comprising at least one twisted wire as the flight arm and methods of using the aforementioned flight mill. When compared to conventional flight arms, twisted wire flight arms have the advantages of being light, flexible, have a high tensile strength, are durable, have low kinetic friction and are cost effective to manufacture. The arm can be made from a single twisted wire or from a twisted pair of wires.
Abstract:
A digital period divider has a first counter with R least significant bits (LSB) and P most significant bits (MSB) having a count input and a reset input, wherein the count input receives a first clock signal and the reset input receives a second clock signal; a latch having P bits and being coupled with the P bits of the first counter; a second counter having P bits and a count input and a reset input, wherein the count input receives the first clock signal; and a first comparator operable to compare the P bits of the latch with the P bits of the second counter and generating an output signal, wherein the output signal is also fed to the reset input of the second counter.
Abstract:
A wheel assembly having a motor attached to a hub within the wheel assembly such that the motor powers the wheel assembly to rotate about an axle once the motor receives a predetermined amount of power. A battery system is configured to deliver power to said motor, the battery system is arranged to rotate with the wheel assembly. A sensor system within the wheel assembly that provides data to a control system related to velocity and angle of orientation of the assembly. A load transferring quick-release mechanism is also disclosed for coupling the wheel assembly to a vehicle wheel attachment frame member and a method is provided for calibrating the same.
Abstract:
A wheel assembly having a motor attached to a hub within the wheel assembly such that the motor powers the wheel assembly to rotate about an axle once the motor receives a predetermined amount of power. A battery system is configured to deliver power to said motor, the battery system is arranged to rotate with the wheel assembly. A sensor system within the wheel assembly provides data related to velocity and angle of orientation of the assembly. A control system within the wheel assembly receives data related to velocity and angle of orientation of the wheel assembly from the sensor system, with the control system having at least one output to from the battery system indicative of an amount of power that is delivered to the motor.
Abstract:
A device 1 for measuring a fluid flow FF velocity and direction comprises : - a pivotable means 2 adapted to rotate at a pivotable means rotation velocity and direction depending on the fluid flow velocity and direction when in contact with the fluid flow, - a modulator 3 coupled to the pivotable means and adapted to rotate in conjunction with the pivotable means, - a fiber optical arrangement for providing an incident beam IB to the modulator and for receiving a return beam RB from the modulator, - the incident beam IB comprising an incident signal, the return beam RB comprising a modulated signal, the modulator 3 modulating the incident signal so as to form the modulated signal depending on the pivotable means 2 rotation velocity and direction. The modulator 3 comprises an encoder 30 comprising at least a first angular sector 34, a second angular sector 35 and a third angular sector 36, each angular sector having a determined attenuation coefficient so that the modulated signal comprises at least a first portion 64, a second portion 65 and a third portion 66 for each complete rotation of the encoder 30. The device 1 further comprises a processing means 6 for determining the fluid flow FF velocity and direction based on at least the first portion 64, the second portion 65 and the third portion 66 of the modulated signal.
Abstract:
An absolute value encoder for sensing the number of revolutions, wherein an A-phase/B-phase generating section (610) generates A-phase/B-phase one-period pulse signals the phases of which are 90 degrees different from each other within one revolution of the shaft on the basis of the light passing through a slit rotating together with the shaft. When an A-phase/B-phase status sensing section (640) senses a change of the pulse signals, a clock generating section (66) switches the clock frequency.
Abstract:
An optic speed sensor for sensing the speed of a rotating component such as a gear includes a sensor such as an electromagnetic speed sensor disposed in proximity to teeth of the gear. Within the housing of the sensor are one or more electrical signal lines having electrical signals imposed thereon, the electrical signals being indicative of the rotational speed of the gear. Physically connected to the sensor housing is a mating connector. Disposed within the housing of the mating connector are corresponding one or more LEDs, each LED being electrically connected to the electrical speed signals provided by the sensor. Each LED provides an optical signal indicative of the speed of the gear, each LED having fiber optic cable connected thereto which transmits the optical energy output by the associated LED to an optical receiver disposed away from the sensor, such as a control unit for the device incorporating the gear. The optical receiver transforms the optical signal into a form, such as to an electrical signal, more suitable for the type of signal processing performed at the predetermined location.
Abstract:
A vehicle display system (1) comprises a stationary detection means (34) and an indicator (2), which form a stationary vehicle detection means being operative to produce an indicator signal which is indicative of the vehicle being stationary. A vehicle display system (1) comprises a vehicle deceleration detection means (32) and an indicator (2), the detection means being operative to measure the magnitude of deceleration of a vehicle and generate a signal to drive the indicator and thereby generate a display indicative of the magnitude of vehicle deceleration, the vehicle deceleration detection means being independent of the vehicle braking system. The indicator can be an array of lamps (10 to 17) and the stationary vehicle indicator signal an animate display whereby the lamps are turned on and off. Additionally, there is provided a ranging device (60) which can be used to detect a trailing vehicle within a predetermined distance of the vehicle comprising the ranging device. The ranging device (60) may be used to initiate a change of the display generated by the vehicle display system (1).
Abstract:
An electro-optic speed sensor for sensing the speed of rotation of a rotating sending unit which includes an optical switch transducer for sensing disturbances in a magnetic field caused by the passage of a rotating magnetic sending wheel on the rotating member. The optical switch transducer uses a Faraday material and provides its signal by rotating the polarity of polarized light reflected within the transducer. The disturbances in the magnetic field generate an optical signal resulting from changes in the Faraday rotation.