51results about How to "Influence is negligible" patented technology

The present invention discloses a magnetic detecting device comprising an apply coil 1 for generating an alternate magnetic field of variable frequency and a power source 2 for the apply coil; a magnetic sensor 5 for detecting a change in the magnetic field induced by a test object 9 placed at a distance from a surface of said apply coil and toward said test object, said magnetic sensor being provided with a cancel coil 6 for canceling a magnetic field generated at the position of the magnetic sensor by a direct magnetic field and / or said apply coil; a measurement circuit 7 for the magnetic sensor for measuring a detection signal of said magnetic sensor; a lock-in amplifier circuit 8 for detecting an output of said measurement circuit for the magnetic sensor into two signals having the same frequency as that of said apply coil and phases different from each other by 90 degrees; and an analysis means 10 for analyzing a phase change of the output of said magnetic sensor 5 using an output signal from said lock-in amplifier circuit 8.

A coupling device for an optical fiber used in optical tomography examination of a medium includes a mass of diffusing material for a wavelength guided by the optical fiber. This mass includes a bearing surface to be applied against the surface of the medium. At least one housing is provided in the mass to receive the end of the optical fiber.

An endovascular device (1, 100, 200, 300) having a distal end (2), a proximal end (4) and a body portion (3) therebetween. The body portion is made of a multiple filament helically wound row (A) of wires (5), provided with a sealing coating (14) on the inside surface or the outside surface or both. The device may be a catheter (1), a sheath, an introducer, a delivery device, a pusher (100), an embolization coil delivery device (300), or a receptacle (208) for an expandable prosthesis (220) used with a delivery device (200). From 2 to 12, and preferably from 4 to 8, wires (5) are used in the row, and fewer wires may be used proceeding toward the distal end (2) for greater flexibility. The helically wound row of wires transmits torque and provides pushability to the device while resisting kinking, and enables a small outside diameter for reaching very small vessels and extending through very tortuous vessels.

The invention provides a wire bonding method which enables formation of a low loop having a height not exceeding two times the wire diameter and secures sufficient pull strength of the wire even with the low loop shape. After having formed a contact-bonded ball at a first bonding point, a capillary moves upward and then toward a second bonding point to press a side surface of an upper portion of the contact-bonded ball, so that a protruded portion is formed on a top portion of the contact-bonded ball on the side of the second bonding point. After having formed the protruded portion of the contact-bonded ball, the capillary moves upward, and then downward while moving toward the second bonding point to press the protruded portion, so that a wire drawing portion for drawing the wire from the top portion of the contact-bonded ball horizontally is formed.

A brake-pedal operating rod mechanism and an accelerator-pedal operating link mechanism. The operating rod mechanism includes one end with a grip and another end with first, second and third brake rods laterally pivotally connected to a frame connected to a brake pedal bracket. The accelerator-pedal operating link mechanism includes a connecting rod longitudinally movably received in the brake rods of the brake-pedal operating rod mechanism, an accelerator-pedal operating lever pivoted by the connecting rod and extending toward an accelerator pedal, an accelerator-pedal operating link connected to an end of the operating lever away from the connecting rod and having a tip end with an accelerator pedal bracket, and a support link pivoted to the frame and to a laterally intermediate portion of the operating lever such that the link can be swung in directions in parallel with those of the operating rod mechanism.

Provided is a capacitance detection apparatus capable of effectively discriminating between an external factor due to e.g. water drops and a human-induced operation and allowing detection of occurrence of the human-induced operation with a simple arrangement. The apparatus alternately executes a first switching control process and a second switching control process, the first and second switching control processes executing a second switch operation with different charging periods from each other. In each of the first and second switching control processes, the number of repetition times of the second switch operation is counted until the potential of a terminal of a reference capacitance changes to a set potential. Based on the number of repetition times in at least one of the two switching control processes, presence / absence of change in determined capacitance (i.e. capacitance to be determined) is determined and based on the numbers of repetition times in the two control processes, it is determined whether the change in the determined capacitance is due to an event of detection interest or not.

The invention relates to an electromagnetic actuator comprising an actuator member (6) connected to an armature (8) which is movable under drive from a drive member comprising at least one coil (1) for generating magnetic flux in a core (2) having a face facing a face of the armature (8), at least one of the facing faces including at least one set-back portion (10), the armature (8) and the core (2) being arranged, in a first zone (12) of the armature (8) and of the core (2) including the set-back portion, to define a first magnetic path which is interrupted by an air gap that is not less than the setback of the set-back portion (10) when the armature (8) bears against the core (2), and in a second zone (13) of the armature (8) and of the core (2) excluding the set-back portion, to define a second magnetic path which is interrupted solely by a residual air gap when the armature (8) bears against the core (2), the total area of the set-back portion being no greater than an area that would bring the magnetic flux to saturation in the second zone of the armature.

A variable capacitance device that achieves a desired capacitance even when factors causing varied capacitances are generated is configured such that a capacitance detection pulse signal is applied from a capacitance detection signal generation unit to a driving capacitor and a reference capacitor of a MEMS mechanical unit. The device voltage of the driving capacitor based on the capacitance detection signal and a driving voltage is applied to the inverting input terminal of a comparator. The device voltage of the reference capacitor based on the capacitance detection signal and the driving voltage is applied to the non-inverting input terminal of the comparator. The comparator generates a comparison output signal including “Hi” and “Low” values from the difference between these device voltages, and applies the output signal to a driving voltage generation unit. The driving voltage generation unit increases or decreases the driving voltage based on the comparison output signal.