A relative position indication system comprises a cyclical position sensor which includes first and second plates having cyclical windings thereon. The position indication system is operative for determining the relative cycle position between the windings on the first plate and the windings on the second plate within a single cycle and for determining a cycle count representing the number of whole cycles by which the first and second plates have been repositioned relative to each other. The pos...

The process for measuring relative angles between a measuring platform and measuring points provides at least one light ray (f.sub.1, f.sub.2) fanned into a flat band. This light fan is swivelled around an axis of the measuring points light is reflected back to the measuring platform, as soon as the light fan impinges on these reflecting means. The measuring platform has counters, which count continuously until the arrival of a reflecting signal at the measuring platform. The respective next ref...

A relative motion sensor sensing relative vibratory motions between two objects comprises a pair of eleongated members joined to one another at the first extremities thereof and respectively include a fastening means disposed at the second extremities thereof opposite to the first extremities for affixing the second extremities to the two objects under the relative vibratory motion. A Piezo electric element is confined in a space between the two elongated members adjacent to the joined first ext...

Disclosed is a relative rotation transmitting apparatus comprising outer and inner coaxial shafts, main and sub drives, speed-reduction unit operatively connected both to the telescoped shafts and the main and sub drives with associated gear wheels, and a tool-carrier fixed to the fore-end of the outer shaft and having means for converting the rotation of the inner shaft about the longitudinal axis to the rotation about an axis perpendicular to the longitudinal axis and means for converting the ...

The apparatus disclosed herein employs a grating or scale which concentrates light at a preselected wavelength into the positive and negative first orders while minimizing the zeroth order. The scale is illuminated with monochromatic light of the selected wavelength and a poly-phase periodic detector has its sensing plane spaced from the scale a distance less than ##EQU1## where W is the width of the illuminated region of the scale. The period of the poly-phase detector is equal to P/2 so that e...

A humidity generating method and apparatus which utilizes a source of air which can be supplied to a saturator and to a drier for supplying wet and dry air streams. Control means are provided to control a cyclical supplying of alternating timed quantities of wet and dry air streams to a chamber to provide a mixed air stream having a desired relative humidity.

Method and system for measuring a relative position and orientation of range cameras using a movement of an object within a scene. In general, the method and system determine the relative pose between two cameras by measuring a path the movement of the object makes within a scene and calculating transformation parameters based on these measurements. These transformation parameters are used to determine the relative position of each camera with respect to a base camera. The system and method incl...

A relative address protocol for communicating message packets along a linear chain network or quasi-linear chain network is disclosed. The protocol includes a relative destination address field that includes a counter having a preselected initial value at a source node. The initial value is a function of the desired number of node hops that the message packet should travel from the source node. The counter is adjusted in value at each subsequent node by a preselected step in value. When the coun...

Method and system for measuring a relative position and orientation of range cameras using a movement of an object within a scene. In general, the method and system determine the relative pose between two cameras by measuring a path the movement of the object makes within a scene and calculating transformation parameters based on these measurements. These transformation parameters are used to determine the relative position of each camera with respect to a base camera. The system and method incl...

A detect ion unit 10, which is disposed in opposite relation to a scale 12, includes a transmission coil 10a and a detection coil 10b. A metal film 10g formed of two opposing metal films is provided between a silicon substrate and the transmission coil 10a, one of the two metal films is connected to a drive circuit 10c, and the other is connected to the transmission coil 10a. The metal film 10g provides the capacitance C of an LC resonance circuit, so that a chip capacitor is made unnecessary. T...