Abstract: A central conductor assembly for a non-reciprocal circuit device, at least a first central conductor constituting a first inductance element and a second central conductor constituting a second inductance element being integrally formed in a laminate comprising pluralities of magnetic layers, the first central conductor being formed by series-connecting first and second lines formed on a first main surface of the laminate to third lines formed in the laminate through via-holes, and the second central conductor being formed on the first main surface of the laminate such that it extends between the first and second lines and crosses the third lines via a magnetic layer.

Abstract: A low temperature history indication plate 31 made of a low thermal expansion material used within an apparatus is provided on the outer surface of the apparatus. A surface of the low temperature history indication plate 31 is mirror polished. Simply by observing the low temperature history indication plate 31, it can be determined whether or not martensitic transformation has occurred.

Abstract: Canister-shaped magnetic reinforcing elements 31, 32 made of a ferromagnetic material having a Curie temperature higher than magnetic yokes 11, 12 are provided inside the magnetic yokes 11, 12. The inner periphery 31a, 32a of an opening in each of the magnetic reinforcing elements 31, 32 is opposed to the outer periphery 51a, 52a of each of pole piece tops 51, 52. A torquer coil 61, 62 is located between the inner periphery 31a, 32a of the opening in each of the magnetic reinforcing elements 31, 32 and the outer periphery 51a, 52a of each pole piece top 51, 52. The magnetic reinforcing elements 31, 32 provided inside the magnetic yokes 11, 12 form independent magnetic circuits. Since the magnetic reinforcing elements 31, 32 have a Curie temperature higher than the magnetic yokes 11, 12, a high accuracy of acceleration measurement in a high-temperature range can be achieved.

Abstract: Canister-shaped magnetic reinforcing elements 31, 32 made of a ferromagnetic material having a Curie temperature higher than magnetic yokes 11, 12 are provided inside the magnetic yokes 11, 12. The inner periphery 31a, 32a of an opening in each of the magnetic reinforcing elements 31, 32 is opposed to the outer periphery 51a, 52a of each of pole piece tops 51, 52. A torquer coil 61, 62 is located between the inner periphery 31a, 32a of the opening in each of the magnetic reinforcing elements 31, 32 and the outer periphery 51a, 52a of each pole piece top 51, 52. The magnetic reinforcing elements 31, 32 provided inside the magnetic yokes 11, 12 form independent magnetic circuits. Since the magnetic reinforcing elements 31, 32 have a Curie temperature higher than the magnetic yokes 11, 12, a high accuracy of acceleration measurement in a high-temperature range can be achieved.

Abstract: A low temperature history indication plate 31 made of a low thermal expansion material used within an apparatus is provided on the outer surface of the apparatus. A surface of the low temperature history indication plate 31 is mirror polished. Simply by observing the low temperature history indication plate 31, it can be determined whether or not martensitic transformation has occurred.

Abstract: A central conductor assembly for a non-reciprocal circuit device, at least a first central conductor constituting a first inductance element and a second central conductor constituting a second inductance element being integrally formed in a laminate comprising pluralities of magnetic layers, the first central conductor being formed by series-connecting first and second lines formed on a first main surface of the laminate to third lines formed in the laminate through via-holes, and the second central conductor being formed on the first main surface of the laminate such that it extends between the first and second lines and crosses the third lines via a magnetic layer.

Abstract: A vibratory gyroscope including a vibrator (10) integrally having a plate-like body portion (11) spreading along a reference plane, three drive arms (12, 13, 14) extending in a first direction from the body portion along the reference plane, and two detection arms (15, 16) extending in a second direction opposite to the first direction from the body portion along the reference plane. The three drive arms are composed of two exciting drive arms (12, 13) that are excited in mutually opposite phases in the reference plane and a non-exciting drive arm (14) located between the two exciting drive arms. Each of the three drive arms has an arm width in a width direction along the reference plane and perpendicular to the first direction. Each of the two detection arms has an arm width greater than that of the drive arm in the width direction, thereby suppressing generation of vibrations along the reference plane.

Abstract: A vibratory gyroscope including a vibrator (10) integrally having a plate-like body portion (11) spreading along a reference plane, three drive arms (12, 13, 14) extending in a first direction from the body portion along the reference plane, and two detection arms (15, 16) extending in a second direction opposite to the first direction from the body portion along the reference plane. The three drive arms are composed of two exciting drive arms (12, 13) that are excited in mutually opposite phases in the reference plane and a non-exciting drive arm (14) located between the two exciting drive arms. Each of the three drive arms has an arm width in a width direction along the reference plane and perpendicular to the first direction. Each of the two detection arms has an arm width greater than that of the drive arm in the width direction, thereby suppressing generation of vibrations along the reference plane.

Abstract: A six-legged type piezoelectric vibration gyroscope having a pair of exciting arms extending from a body (2) in a first direction (A1) with a space therebetween, one non-exciting arm (3c) extending in the first direction between the exciting arms from the body, a pair of detecting arms (4a, 4b) extending from the body in a second direction (A2) with a space therebetween, and one non-detecting arm (4c) extending in the second direction between the detecting arms from the body. The exciting arms are coupled with a drive-side electrode. The detecting arms are coupled with a detection-side electrode. The exciting arms, non-exciting arm, detecting arms, and non-detecting arm respectively consist of a piezoelectric. The respective exciting arms differ in width size from the non-exciting arm. The respective exciting arms differ in width size from the respective detecting arms. The respective exciting arms differ in width size from the non-detecting arm.

Abstract: A six-legged type piezoelectric vibration gyroscope having a pair of exciting arms extending from a body (2) in a first direction (A1) with a space therebetween, one non-exciting arm (3c) extending in the first direction between the exciting arms from the body, a pair of detecting arms (4a, 4b) extending from the body in a second direction (A2) with a space therebetween, and one non-detecting arm (4c) extending in the second direction between the detecting arms from the body. The exciting arms are coupled with a drive-side electrode. The detecting arms are coupled with a detection-side electrode. The exciting arms, non-exciting arm, detecting arms, and non-detecting arm respectively consist of a piezoelectric. The respective exciting arms differ in width size from the non-exciting arm. The respective exciting arms differ in width size from the respective detecting arms. The respective exciting arms differ in width size from the non-detecting arm.

Abstract: A resin casing for use in a non-reciprocal circuit device comprising an assembly of a ferrimagnetic body and a plurality of central conductors enclosing it, and a plurality of elongated flat capacitors connected to ends of the central conductors; the resin casing being constituted by a thin conductor plate having a substantially flat bottom portion and a resin frame injection-molded integrally with the thin conductor plate; the resin frame comprising sidewalls, and partition walls provided inside the sidewalls for defining a plurality of recesses for receiving the flat capacitors, a pair of opposing sidewalls being provided with external terminals constituted by the thin conductor plate; any bottoms of a plurality of the recesses being integrally constituted by a substantially flat bottom portion of the thin conductor plate; the recesses being formed such that all flat capacitors received in the recesses are aligned substantially in parallel with sidewalls having external terminals; and the assembly being dis

Abstract: A resin casing for use in a non-reciprocal circuit device comprising an assembly of a ferrimagnetic body and a plurality of central conductors enclosing it, and a plurality of elongated flat capacitors connected to ends of the central conductors; the resin casing being constituted by a thin conductor plate having a substantially flat bottom portion and a resin frame injection-molded integrally with the thin conductor plate; the resin frame comprising sidewalls, and partition walls provided inside the sidewalls for defining a plurality of recesses for receiving the flat capacitors, a pair of opposing sidewalls being provided with external terminals constituted by the thin conductor plate; any bottoms of a plurality of the recesses being integrally constituted by a substantially flat bottom portion of the thin conductor plate; the recesses being formed such that all flat capacitors received in the recesses are aligned substantially in parallel with sidewalls having external terminals; and the assembly being dis

Abstract: An accelerometer is composed of a pair of housings each of which forms a magnetic structure together with a permanent magnet and a flapper flexurally supported by hinge portions between the magnetic structures. The permanent magnet is secured to the housing of the magnetic structure by means of a spacer so as to prevent a harmful thermal stress which will be caused by the difference of thermal expansion between the magnet and the housing. A bobbin with a torquer coil is secured to the flapper by means of a base member to take no effect of thermal stress which will be caused by the difference between the materials of the bobbin and the flapper. The above elements are housed in a case which is installed in an instrument board so as to be unaffected by changes in temperature in surroundings of the accelerometer.

Abstract: A lumped constant non-reciprocal circuit element such as a circulator or an isolator comprising a set of mutually insulated central conductors, a garnet plate not more than 0.6 mm in thickness, a ceramic substrate having a central bore for accommodating the garnet plate and patterned electrodes formed thereon, and a permanent magnet for applying a DC magnetic field to the garnet plate. Because of this structure, this circuit element is very thin with good insertion loss properties.

Abstract: An apparatus for remotely monitoring the color distribution of two materials charged in a treating column by moving a color sensor along a viewing window of the column. The color sensor moving along the viewing window projects a light onto the materials in the treating column and receives the reflected light for conversion into a reception signal. A comparator compares the reception signal with a reference signal representing a standard color of the materials in the column to produce a digital color difference signal. The digital color difference signal is sampled and distributed to indicator lamps in accordance with position signals from the of positions sensing means which senses the passage of the color sensor by each of a plurality position. Thus, the indicator lamps provide a remote display of the color distribution of the materials along the viewing window.