Barriera di Luce Check translation. Barreira de Luz Check translation. Barrera de Luz Check translation. Trigger-like Continuous-like Trigger-like. During your Standby Phase , toss a coin. If an "Arcana Force" monster destroys an opponent's monster by battle , you gain Life Points equal to the destroyed monster's original ATK.
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Durante la tua Standby Phase , lancia una moneta. Se un mostro "Energia Arcana" distrugge un mostro di un avversario in battaglia, tu guadagni Life Points uguali all'ATK originale del mostro distrutto.
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Durante cada uma das suas Standby Phases, jogue 1 moeda. The processors are programmed with the corresponding software by default. The mirco processor controls can, for example, switch on the light in the house's hallway, then in the kitchen and, finally, in the living room. Not only are a lot of options to utilize the E-Kits detailed , but there are also descriptions for individual elements, functions and switchboard controls so that you can learn many things about the background and possible uses of this technology. Mehr Informationen. Specialist for Model Landscaping.
The finely detailed, delicate models are laser engraved, many of them hand-painted and weathered. The models are manufactured from renewable raw materials thus being especially enviroment friendly. Hand-painted Hard foam products are coloured by hand applying specially mixed, water-based NOCH acrylic paints in our own paint shop.
Thus the three-dimensionality of the structures are better accentuated. Advantageously the circuitry is provided with a phase dividing filter to sort out the different pulses, i. For evaluation of the pulses the circuitry may include one 'or several gates having inputs at which the monitoring pulses, ie the pulses derived from a rate monitoring of the motor, and the protective pulses are applied.
This circuitry effects a signal upon the occurrence of any one of: the monitoring pulses are not present; the rate monitoring pulses are not present; or protective pulses are present. Expediently the arrangement is provided such that the output signal of the phase dividing filter, originating from an obstacle, is supplied to two gates, the gates being designed as AND-gates as well as OR gates in dependence on the energization thereof.
Each gate has two inputs. Protective pulses when present are supplied to a first input of each gate. The monitoring pulses are supplied to the second input of one gate and the pulses derived from the rate of the scanning apparatus being monitored as to frequency are supplied to the second input of the other gate.
Thus a determination will be made whether there are monitoring pulses present, whether the scan frequency deviates from the prescribed value, and whether protective pulses are present. With such an arrangement the failure of any electric or optical element generates a signal at the output of the gates to stop the machine. Thereby, the equipment is made safe against possible accidents.
The output signals of the gates after corresponding amplification thereof serve for controlling two switching relays. According to the invention circuitry is furthermore provided for controlling the sensitivity of at least one pulse forming stage. The response threshold of the switching relays and the electronic switching stages multivibrators , respectively, is never exactly the same.
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Due to this, without a sensitivity control the switching relays would respond at different times with slow penetration into the path of:rays of the light barrier. However, the sensitivity control brings about a strict synchronism in the; operation of the relays. As the relay contacts are conveniently cross-connected, every deviation from such synchronism of the relays may additionally generate a signal whereby to block the machine.
Thereby, safety is furthermore substantially increased. Further objects and advantages will become apparent from the following description taken in conjunction with the drawings, in which:. FIGURE 1 schematically illustrates the mechanical design of a light barrier in accordance with the present invention;. Although the following disclosure offered for public dissemination is detailed to ensure adequacy and aid understanding, this is not intended to prejudice that purpose of a patent which is to cover each new inventive concept therein no matter how others may later disguise it by variations in form or additions or further improvements.
The claims at the end hereof are intended as the chief aid toward this purpose; as it is these that meet the requirement of pointing out the parts, improvements or combinations in which the inventive concepts are found. From a light source a beam of light 12 is produced through a lens This beam of light is focused on a rotating polygonal mirror 13 and is periodically deflected thereby. The polygonal mirror 13 is arranged in the focal point of a narrow concave mirror 14 across which the beam of light 12 is directed. Consequently the beam of light 12 will sweep in parallel relationship periodically from.
At the other side of such area to be monitored there is arranged a reflector 15 comprising a strip of many small triples. As is well-known, sucha reflector has the property of always reflecting incident light back into its direction of incidence irrespective of the angle of incidence thereof. Thus, the beam of light 12 will be reflected back into its path of incidence and after passing over concave mirror 14 and polygonal mirror 13 it will strike an inclined partially transmitting mirror 16 between light source 10 and polygonal mirror 13, whereby a portion of the returning light will be passed to a photoelectric detector The light emitting and sweeping apparatus i.
In the embodiment as described the polygonal mirror comprises four surfaces which are alternatingly mirrored and blackened. Upon intervention of a mirrored surface FIGURE 2 of the polygonal mirror 13 the beam of light 12 sweeps across the area to be monitored and upon returning strikes the detector 17 if there is no obstacle present in this areav being monitored. During the subsequent intervention of the blackened side of face 21, no light Will'strike the detector The detector 17 supplies an electrical pulse indicative of no light, referred to herein as a dark pulse.
However, the detector 17 is only able to supply a.unaldaso.tk
For instance, it might rhappen,that all of the reflector strip 15 is obscured by an obstacle so that no light strikes the detector either during passage of the mirrored surface 20 protective cycle or during passage of the blackened surface 21 monitoring cycle. Thus, no light or electrical pulses occur. For this reason auxiliary mirrors 22 are provided on the edges of the polygonal mirror 13 between mirrored surfaces 20 and blackened surfaces During the transition between the protective and monitoring cycles, auxiliary mirrors 22 cause light to be transmitted directly, that is, not via reflector 15, to the photoelectric detector Thereby, the protective and monitoring cycles are positively separated from each other by bright pulses.
For evaluation of the light or, perhaps more specif ically, the dark pulses the phase of the polygonal mirror must be used. This may be done in different ways. If a rigid-in-pha-se synchronous motor is being employed for actuating the polygonal mirror, the phase of the supply voltage may be used directly as reference quantity. In such cases no additional components are required. When using drive motors which are not rigid-in-phase, the phase may, for example, be obtained by two photoelectric detectors 18 and 19 which are arranged adjacent the upper and lower ends of concave mirror 14, and oifset by about A ring 79 is mounted upon the rotor of the drive motor.
Ring 79 is divided into reflecting and nonreflecting zones. It is also possible to magnetically pick off the phase position.
In the embodiment of FIGURES 1, 3 and 4 the beam 12 is alternately directed to photocells 18 and 19 to provide electrical signals indicative of the phase position. The photoelectric detector 17 is formed by a silicon photoelernent. This is an active element which itself sup plies a current upon illumination thereof and does not only change its resistance as do photocondu'ctive cells or the like. This precludes the danger of simulation of an illumination of the detector by a short-circuit. In dia-- gram 23 in FIGURE 4 the electrical signals are illustrated which are supplied by detector 17 During the protective cycles the detector receives light as is shown as at During the intervening monitoring cycles it does not receive any light.
Between protective cycles 24 and the monitoring cycles 25 the detector will be illuminated via mirrors 22, noted as peaks 26 in the pulse diagram. If an obstacle protrudes into the area being monitored, protective dark pulses 27 will occur as gaps in the pickup signal during the protective cycles 24 as shown in broken lines in diagram The current of the photoelement 17 produces a voltage drop across a resistor 28, which is applied across the input of a broadband amplifier 30 via a capacitor At the output of the broad-band amplifier 30 signals are produced as illustrated in diagram 31 in FIGURE 4, the broken line pulses being caused by an assumed obstacle in the path of rays.
As compared with diagram 23, a phase reversal has taken place in amplifier 30 and a direct current portion has been lost. By a so-called clamping stage 32 the direct current portion will be added again, for all practical purposes, in the proper magnitude so that the pulses appear related to the zero line as is shown in diagram 33 in FIGURE 4.
The pulses, thus obtained, will be supplied to a trigger 34 at the output of which, as is illustrated as at 35, pulses of well-defined magnitude appear.