Abstract:
A high-speed transmission connecting sheet 10 includes a first elastomer connector 1E formed on a top sheet 1, a second elastomer connector 2E formed on a bottom sheet 2, third elastomer connectors 3E formed on high-speed transmission boards 31 through 33, and fourth elastomer connectors 4E formed on intermediate layer boards 41 and 42. These elastomer connectors provide three-dimensional connection between the multiple high-speed transmission paths 3C formed on the high-speed transmission boards 31 through 33. A plug housing 5 has the high-speed transmission connecting sheet 10 installed therewithin, with the first elastomer connector 1E disposed at one inner wall of opposing inner walls, and the second elastomer connector 2E disposed at the other inner wall of the opposing inner walls. Receptacle pins 1P are disposed on the first elastomer connector 1E, and plug pins 2P are disposed under the second elastomer connector 2E. Both ends of the high-speed transmission connecting sheet 10 are pressed into contact, whereby the receptacle pins 1P and the plug pins 2P are connected through the multiple high-speed transmission paths 3C.
Abstract:
This invention relates to a austenitic stainless steel thin sheet devoid of work-surface roughening, produced by a continuous casting method of a strip comprising a composition which contains not greater than 0.09% of C+N and has an Md.sub.30 of 30.degree. to 60.degree. C., and in which colonies A comprising {112} , etc., and colonies B comprising {110} , etc., exist in a uniform mixture in the steel sheet. As to colony dimensions, d.sub.RD (A) and d.sub.RD (B) are not greater than 300 .mu.m and d.sub.TD (A) and d.sub.TD (B) are not greater than 200 .mu.m. Solidification cooling is carried out at a cooling rate of at least 100.degree. C./sec, and cooling is carried out to 1,200.degree. C. at a rate of 50.degree. C./sec after solidification. Cold rolling is effected by twice cold rolling with interposed intermediate annealing. In this way, there can be obtained a austenitic strip cast stainless steel sheet not causing work-surface roughening.
Abstract:
A constant current circuit having an output current I.sub.2 which changes with the change of the power source voltage V.sub.cc, and an oscillating circuit whose oscillation frequency is made variable by the change of I.sub.2 in the constant current circuit. The constant current circuit comprises bipolar transistors coupled to form a differential amplifier, wherein one of the transistors is supplied with a reference voltage and another is supplied with a divided voltage of V.sub.cc, and a resistor connecting the emitters of the transistors is provided for controlling the slope of the V.sub.cc -I.sub.2 characteristic curve of the constant current circuit. The oscillating circuit comprises a capacitor charged with I.sub.2 and a switching circuit for discharging the capacitor when it is closed and a voltage detecting circuit operating to close or open the switching circuit according to the detection of the voltage at an end of the capacitor. Thus, the switching circuit operates on and off to generate pulses with frequency depending on I.sub.2, hence, depending on V.sub.cc. Methods for controlling the frequency range of the oscillating circuit and the rise time to fall time ratio of the pulses by introducing additional constant current supplying sources are also disclosed.