公开(公告)号：JPS55166354A

公开(公告)日：1980-12-25

申请号：JP7433279

申请日：1979-06-13

Applicant: NAT AEROSPACE LAB

Inventor： SAITOU YOSHIO ,  OOYAMA KOUICHI ,  SUGAWARA NOBORU

IPC: H04B10/11 ,  H04B10/00 ,  H04B10/114 ,  H04B10/524

Abstract: PURPOSE:To eliminate the external noise or the interference given from other channels for the signal transmission between the substances having the relative motion, by using the optical pulse signal. Thus the good signal transmission is ensured. CONSTITUTION:With application of input signals Si1, Si2 and Si3 to VF converting circuit 15, the corresponding pulse signals are delivered to light up LEDs 14a-14c. On the other hand, phototransistors 24a-24c receive the light reception amount of more than the fixed value at all times regardless of the turning of shaft 11, and each output of transistors 24a-24c is demodulated at FV converting circuit 25. Thus outputs S01, S02 and S03 which are equal to the original signal are obtained. In such way, the signal transfer can be carried out smoothly for the signals under the relative motion between shaft 11 and still axle 21.

公开(公告)号：JPS5552948A

公开(公告)日：1980-04-17

申请号：JP12697678

申请日：1978-10-16

Applicant: NAT AEROSPACE LAB

Inventor： MATSUKI MASAKATSU ,  TAMURA ATSUHIRO ,  OOYAMA KOUICHI ,  SUGAWARA NOBORU ,  SAITOU YOSHIO

IPC: G01F1/68 ,  G01F1/692 ,  G01P5/12

Abstract: PURPOSE:To improve the refractory property and the strength by making a sheath portion of a metal core wire. CONSTITUTION:One or more metal core wire 13 having a low electric resistance is inserted into a metal tube 12 having an elasticity and a diameter smaller than 2mm. A resistive thin film sensor 17, which is prepared by evaporating the surface of a base 18 of an insulating material such as ruby of semi-spherical thin plate with a platinum thin film 19, is fixed through a sensor mounting base 15 of an insulating material such as ceramics or sapphire to the leading end of a thin and flexible sheath portion 11 acting as a holder charged with an insulating filler 14 and a lead wire. Thus, the whole structure has a simple probe, and the size of the sensor 17 can be made equal to or smaller than the outside diameter of the sheath portion 11. Moreover, this sheath portion 11 has flexibility, thus attaining the desired object.

公开(公告)号：JPS56147620A

公开(公告)日：1981-11-16

申请号：JP5202180

申请日：1980-04-18

Applicant: NAT AEROSPACE LAB

Inventor： MATSUKI MASAKATSU ,  OOYAMA KOUICHI

IPC: B01F7/02 ,  B01F5/00

Abstract: PURPOSE:To regulate the concentration of fluid with only necessary energy, by sending the whirled fluid, a mixture of fluids having mass difference, into the concentration regulating chamber wherein the pressure and velocity are regulated correspondingly to the distribution of concentration, and by discharging the regulated fluid. CONSTITUTION:A mixture comprising fluids having different masses is sent from the inlet pipe 7 through the feed chamber 8 to the impeller 2. Wherein the fluid receives the energy of this impeller 2 and becomes a high-speed whirling fluid which then flows toward the chamber 10. In this chamber 10, the fluid builds up a pressure distribution having a great gradient in the radial direction owing to the centrifugal force of the high-speed whirling flow so that the inside of the chamber 10 becomes low pressure. Hereby, the part having larger mass of the mixed fluid exists in rich in the outer side and the part having smaller mass exists in rich in the inner side. Then the rotational velocity of the impeller 2 and the strength of the whirling flow of the chamber 10 are adjusted in order to regulate the concentration of the mixed fluid. After that, the energy of the fluid is again recovered and is used for driving the impeller 2.