摘要:
The present invention relates to a portable, hand-held distance-measurement apparatus utilizing a laser range finder. The distance-measurement apparatus executes a number of distance-measurement cycles. In each cycle, a capacitor begins charging at approximately the same time that a light pulse is generated. An analog-to-digital converter generates a digital representation of the capacitor voltage at approximately the same time that a reflected light pulse is received. The lowest and the highest digital values are discarded and the remaining digital values are averaged and scaled to produce a distance measurement. A reflective target may be used at a remote location to reflect the light beam back to the distance-measurement apparatus. The distance-measurement apparatus has several power saving features that facilitate convenient battery operation. The distance-measurement apparatus may also have a view finder.
摘要:
A connector is disclosed for coupling pins on a printed circuit board to respective mating pins on a gate-array or like plug-in device; the connector is characterized by "floating ring" engagers based within, and adapted to resiliently couple a pair of such mating pins.
摘要:
A connector is disclosed for coupling pins on a printed circuit board to respective mating pins on a gate-array or like plug-in device; the connector is characterized by "floating ring" engagers based within, and adapted to resiliently couple a pair of such mating pins.
摘要:
A sensor which provides an output signal representative of a parameter such as pressure, includes a reflector, a lens and a waveguide which are relatively movable as a function of the parameter. Light from a light source is transmitted by the waveguide toward the reflector. The lens, which is positioned between the waveguide and the reflector directs the light from the waveguide to the reflector and focuses the reflected light proximate a receiving surface of the waveguide. A sensor housing supports the waveguide, lens and reflector so that a relative physical displacement between the waveguide, lens and reflector occurs which is responsive to the parameter. The light received by the waveguide at its receiving surface is a function of the relative physical displacement, and thus a function of the parameter. The waveguide transmits the received light to a light detector which produces an electrical output signal which is a function of the received light and therefore of the parameter.
摘要:
A force override compensating device as one component of the mechanical operating linkage in an electrical socket interlocked dead front safety switch or circuit breaker. Distinct input and output members urged into rigid relation with each other by a spring bias mechanism function as a solid link under normal circumstances. With the interlocking mechanism immobilized, the bias mechanism permits waste movement of the input member relative output member, if an attempt is made erroneously to activate the device using such force as would damage any of the immobilized linkage elements of the locked device. The bias mechanism reverse waste movement of the input member when the erroneously applied force is released. Three embodiments of the invention are described: slidably mounted input and output members preloading therebetween a compression spring; pivotally connected input and output members having an extension spring under tension resisting their pivoting; and rotationally secured input and output members being torsion spring biased therebetween.