摘要:
A position sensitive multiwire proportional counter with integral delay line including a support carrying a plurality of anode wires and at least one cathode wire spaced in a predetermined relationship from the anode wires within the active volume of the counter to form an integral delay line. The counter is filled with a gas which ionizes upon interaction with ionizing radiation, the ionization of the gas being enhanced by the positive anode, such that an electrical charge is thereby induced in the cathode wire. Sensing of elapsed time between receipt of the induced charge at opposing ends of the cathode wire is utilized to determine the desired radiation positional data.
摘要:
A composition and method is herein described for mold release and parting operations. The novel composition comprises a dispersion of a mixture of a solid lubricant, such as graphite or carbon, a carrier, a binder, and a s-triazinyl derivative. A preferred composition comprises graphite, aqueous carrier, sodium silicate and ammeline.
摘要:
A compensating circuit for leakage current comprising part of a signal from a semiconductor image sensor is provided in which a diode is positioned in thermal contact with the image sensor and is reverse biased to produce a leakage current proportional to the image sensor leakage current. Amplifying means is utilized to provide a diode leakage current signal proportional to the leakage current flowing through the diode and equal to the leakage current component of the image sensor signal. The diode leakage current signal and the image sensor signal are summed in a summing circuit such that the diode leakage current signal offsets the leakage current component of the image sensor signal. An output signal results in which the image sensor leakage current component is substantially eliminated.
摘要:
An apparatus and method for conducting a search of a predetermined area for radiant energy utilizing a raster type scan and responsive to receipt of radiant energy automatically shifting the operational mode from search to track after which that portion of the predetermined area within which the radiant energy was located is repeatedly unidirectionally swept with each succeeding sweep being in quadrature relationship to the previous sweep. A pulse indicative of received radiant energy is produced during each sweep and if of sufficient magnitude, the leading and trailing edges are utilized to cause sampling of deflection currents at the time of occurrence of said leading and trailing edges. The thus sampled currents are averaged to produce an analog output signal indicative of the angular position of the source of the radiant energy within the predetermined area along the particular axis established by the sampled sweep currents. Also provided is a selection circuit whereby a particular source of radiant energy can be selected to the exclusion of other sources within the predetermined area.
摘要:
A thin flexible wrap-around antenna assembly, particularly suitable for use in conjunction with a propelled vehicle such as a missile, is disclosed and generally includes a first or inner cylindrical thin conductor that can be flush-mounted on the skin of the propelled vehicle and a second concentrically positioned outer cylindrical thin conductor having an axial length which is equal to one-quarter wavelength at the anticipated operating frequency of the antenna. The conductors are electrically connected at adjacent transverse edges so as to define a onequarter wavelength open-ended coaxial cavity which is connected to a transmitter or receiver by a combination electrical signal feed and impedance matching assembly.
摘要:
A compact solid-state oscillator-transmitter which includes a transistor within a small can defining a tuning cavity. The can is electrically connected in the output circuit to present a capacitance which may be varied by manual adjustment of a tuning screw so that the effective output impedance, including parasitic impedance, has the proper phase angle necessary to permit oscillation at the desired frequency. The can is also utilized to shield radiation of radiofrequency conducting circuit components, to secure the components, and to protect the same against adverse environmental influences. A probe is provided to pick up oscillatory signal energy in the cavity and is utilized as an antenna when transmitting the produced signal.
摘要:
DRY LUBRICANT SUCH AS MOLYBDENUM DISULFIDE IS APPLIED TO A SOLID SURFACE BY INTERPOSING THE LUBRICANT BETWEEN THE SURFACE AND A FORCE GENERATING MEANS SUCH AS A PEENING PARTICLE, PREFERABLY BY APPLYING THE LUBRICANT INITIALLY TO THE PARTICLE, AND THEN FUSING THE LUBRICANT TO THE SURFACE BY BRINGING THE FORCE TO BEAR UPON THE SURFACE, AND PEENED SURFACES HAVING DRY LUBRICANT IMPACTED OR FUSED THEREON.
摘要:
A VIDEO SIGNAL ATTENUATOR HAVING COMPLEMENTARY TRANSISTOR PAIRS TO ATTENUATE A VIDEO SIGNAL BY A FACTOR DETER MINED BY AN APPLIED CONTROL VOLTAGE. EACH TRANSISTOR PAIR RECEIVES THE INPUT VIDEO SIGNAL AND EFFECTS ACROSS AN OUTPUT RESISTIVE MATRIX VIDEO SIGNALS AS ATTENUATED WITHOUT DISTROTION BUT OF SUBSTANTIALLY EQUAL AMPLITUDE AND POLARITY, AND DIRECT CURRENT SIGNALS OF SUBSTANTIALLY EQUAL AMPLITUDE AND OPPOSITE POLARITY SO THAT LOW FREQUENCY TRANSIENT SIGNALS OCCASINED BY VARIATIONS OF THE CONTROL VOLTAGE DO NOT APPEAR AT THE OUTPUT WITH THE ATTENUATED VIDEO SIGNALS.