초록 ▼

A system for measuring components of the velocity of wind along two axes that are transverse to the line of sight of the system includes first and second light emitter arrays disposed along crossed first and second axes, respectively, for illuminating the distribution with light, a detector for rece

A system for measuring components of the velocity of wind along two axes that are transverse to the line of sight of the system includes first and second light emitter arrays disposed along crossed first and second axes, respectively, for illuminating the distribution with light, a detector for receiving light backscattered from the distribution, and a controller to activate the arrays, receive detector signals, and calculate the projections of the velocity of the distribution onto the first and second axes. The light emitters of each array can be positioned at irregular distances and provide the system with the capability of discerning the direction of movement of the distribution along the two axes.

대표청구항 ▼

A system for measuring components of the velocity of wind along two axes that are transverse to the line of sight of the system includes first and second light emitter arrays disposed along crossed first and second axes, respectively, for illuminating the distribution with light, a detector for rece

A system for measuring components of the velocity of wind along two axes that are transverse to the line of sight of the system includes first and second light emitter arrays disposed along crossed first and second axes, respectively, for illuminating the distribution with light, a detector for receiving light backscattered from the distribution, and a controller to activate the arrays, receive detector signals, and calculate the projections of the velocity of the distribution onto the first and second axes. The light emitters of each array can be positioned at irregular distances and provide the system with the capability of discerning the direction of movement of the distribution along the two axes. ce of the signal generating component to approximate the impedance of the planar conductor element. 2. A wireless communication device according to claim 1, wherein the matching network is disposed proximate an edge of the planar conductor element. 3. A wireless communication device according to claim 2, wherein the first and second conductive layers of the matching network are substantially planar, and said first and second conductive layers of the matching network being substantially parallel to the planar conductor element. 4. A wireless communication device for receiving and transmitting a communication signal, said signal having an associated wavelength, said device comprising: a signal generating component having a signal output, said output defining a signal generating circuit impedance; a substantially planar conductor element operatively coupled to the signal generating component, said planar conductor element extending in a first dimension of approximately one-quarter of the wavelength, said planar conductor element having an associated impedance, said planar conductor element being formed on a printed wiring board as the ground plane of the wireless communication device and being an active radiating element of the device; and a matching network disposed in relation to the signal generating component and the planar conductor element and operatively coupled to the signal generating output, said matching network having a substantially planar dielectric substrate and a conductive meander element provided upon a first major surface and an additional conductor element provided upon a second major surface, said meander element and said conductor element being electrically coupled together, said matching network transforming the impedance of the signal generating component to approximate the impedance of the planar conductor element. 5. A wireless communication device according to claim 4, wherein said conductive meander element has a length of approximately one quarter of the wavelength. 6. A wireless communication device according to claim 4, wherein the conductive meander element is disposed proximate a perimeter of the dielectric substrate. 7. A wireless communication device according to claim 4, wherein the signal generating component is coupled proximate an end of the meander element. 8. A wireless communication device according to claim 4, wherein the matching network is disposed proximate an edge of the planar conductor element. 9. A wireless communication device according to claim 4, wherein the conductive meander element and the additional conductor element are disposed upon opposed major surfaces of the dielectric substrate. th of the battery, for forming an output signal of said counter, during the engine starting; (g) determining and responding to said output signal of said integrator by a reset signal detector, for forming an output signal of said reset signal detector, simultaneous to step (d) of said determining and said responding to said output signal of said integrator by said detector, during the engine starting; (h) delaying forwarding of said output signal of said reset signal detector by a reset delay, during the engine starting; (i) analyzing and responding to simultaneous reception of said output signal of said one shot and said output signal of said reset delay by a reset logic circuit, for forming an output signal of said reset logic circuit, whereupon according to said output signal of said reset logic circuit sent to said counter, response of a counter reset mechanism associated with said counter is selected from the group consisting of activating for resetting said count number of said counter and remaining inactive by not resetting said count number of said counter, during the engine starting; and (j) determining and responding to said output signal of said counter by an alarm, whereupon according to said determination by said alarm, said response by said alarm is selected from the group consisting of remaining inactive and activating for providing an in-use warning signal of the low cranking strength of the battery to an operator of the combustion engine, at a time selected from the group consisting of during the engine starting and following the engine starting prior to engine turn-off. 31. The method of claim 30, whereby said time varying voltage of the battery includes voltage changes in the battery caused by electro-mechanical noise and vibrations associated with the engine starting, said electro-mechanical noise and vibrations are selected from the group consisting of random electro-mechanical noise and vibrations, and, periodic electro-mechanical noise and vibrations. 32. The method of claim 30, whereby said sensing of said time varying voltage of the battery by said integrator is effected in a mode selected from the group consisting of continuously with time and discontinuously with time. 33. The method of claim 30, whereby said constant reference DC voltage is set at a value corresponding to less than normal but sufficient cranking strength of the battery required for the activation and initiation of cranking of the combustion engine crankshaft from said initiation of and during the engine starting. 34. The method of claim 30, whereby step (d) further comprises the step of: (i) determining a value of said output signal of said integrator selected from the