摘要:
A piezoelectric resonator chip which includes a piezoelectric chip plate and a pair of electrode patterns which is formed on the opposite surfaces of the piezoelectric chip plate, the electrode patterns face each other through the piezoelectric chip plate. At least one of the electrode patterns has an adjuster pattern which includes a narrow cutting pattern and a separation pattern which is connected to the electrode pattern through the cutting pattern and which faces the other electrode pattern.
摘要:
A piezoelectric resonator which resonates in thickness shear mode. The piezoelectric resonator includes a strip shaped resonance chip made of an X-cut plate of lithium tantalate crystal and having a rectangular cross-section. Electrodes are formed at the center portion with respect to the longitudinal direction of the resonance chip on each of two X-plane surfaces. The width of the electrodes is equal to the width of the resonance chip. The longitudinal direction of the resonance chip inclines with respect to the Y-axis by an angle of 50.degree..+-.2' in the clockwise direction in the X-plane so as to make the longitudinal direction of the resonance chip coincide with the displacement direction of primary oscillation of the crystal. Optimal ratios of the dimensions of the resonance chip and terminal connectors at the ends of the resonance chip are given to reduce spurious response. The temperature characteristic is optimized by selecting rotation angles about the Y-and Z-axes in relation to the amount of trapped energy.
摘要:
A piezoelectric resonator includes a base plate and a strip-type, energy trapping piezoelectric resonator chip mounted on the base plate. The piezoelectric resonator chip includes a piezoelectric chip plate and a pair of electrode patterns formed on the opposed main surfaces of the piezoelectric chip plate. One main surface of the piezoelectric chip plate faces the base plate and is parallel therewith, and a conductive layer is formed on each end of the main surface facing the base plate. The thickness of the conductive layer is greater than that of the electrode pattern so that the electrode pattern is separated from the base plate. The conductive layer is directly mounted onto a conductive portion of the base plate, so as to electrically connect the electrode pattern and the conductive portion of the base plate.
摘要:
A disk drive determines, from eccentric amounts of individual prescribed rotation phases for one round of an optical disk 1, a rotation phase range in which a lens shift amount after tracking pulling-in of an object lens constituting an optical pickup 3 does not exceed a movable range of the object lens in a preset tracking direction, sets the rotation phase range as a tracking pulling-in range, and carries out tracking pulling-in of the optical pickup 3 while the rotation phase of the optical disk 1 is placed within the tracking pulling-in range.
摘要:
An optical disc driving device includes a control circuit 4 for performing a gain adjustment for each of two recording surfaces of a multilayered optical disc 1 on the basis of an FE signal in such a way as to maintain a state in which light is focused onto either of the recording surfaces, to generate a focus servo loop signal, and for generating a focus jump signal for causing either a transition from a state in which the light is focused onto one recording surface to a state in which the light is focused onto the other recording surface, or a transition in the opposite direction from a threshold set up on the basis of an amount of gain adjustment, and a focus actuator driving circuit 5 for performing either a focus jump or an operation of maintaining the state in which the light is focused.
摘要:
Disclosed is a benzonitrile derivative which is useful as a production intermediate for benzylamine derivative represented by the general formula (5) below and s secondary amine derivative represented by the general formula (9) below. Also disclosed are a method for producing such a benzonitrile derivative and a use thereof as a bactericide. Specifically disclosed are a novel benzonitrile derivative represented by the general formula (1) below, a salt thereof, a production method thereof, and a use thereof as a pharmaceutical intermediate or a bactericide. [Chemical formula 1] (5) (In the formula, n represents an integer of 0-3, and R1 represents a hydrogen, a linear or branched alkyl group having 1-6 carbon atoms or the like.) [Chemical formula 2] (9) (In the formula, n and R1 are a defined above, and R4 represents a hydrogen, a linear or branched alkl group having 1-6 carbon atoms or the like.) [Chemical formula 3] (1) (In the formula, n represents an integer of 0-3, and R1 represents a hydrogen, a linear or branched alkyl group having 1-6 carbon atoms or the like.)
摘要:
A living body measuring sensor (1) is made to contact a body surface of a measuring subject through capacitance coupling using a cloth (6) between a metal electrode (2) and the body surface as the capacitance, a living body electric signal is extracted from the metal electrode (2), and an elctrocardiographic waveform is outputted based on an output of the living body measuring sensor (1) using an impedance converter having a high input impedance and a low output impedance.
摘要:
A disk drive determines, from eccentric amounts of individual prescribed rotation phases for one round of an optical disk 1, a rotation phase range in which a lens shift amount after tracking pulling-in of an object lens constituting an optical pickup 3 does not exceed a movable range of the object lens in a preset tracking direction, sets the rotation phase range as a tracking pulling-in range, and carries out tracking pulling-in of the optical pickup 3 while the rotation phase of the optical disk 1 is placed within the tracking pulling-in range.
摘要:
An inlet (11a) and an exit (11b) are formed at opposite ends of a chamber (11), and transporting device (12) is moved into the chamber from the inlet toward the outlet. The transporting device is constituted to transport a plurality of works (19) at predetermined intervals. Disposed within the chamber is a pair of electrode plates (13, 14) along the longitudinal direction of the transporting device and at predetermined distances from the works, respectively so as to interpose the works between the pair of electrode plates. Smoke to be adhered to and infiltrated into works is constitutionally generated by smoke generating device (16) and introduced into the chamber. Applied between the pair of electrode plates is a DC voltage or AC voltage of 7 kV to 15 kV by a high voltage generating circuit, and works are grounded, this reduces the amount of electric power consumption, downsizes the apparatus, and renders the smoke to uniformly adheres to and infiltrates into works, to thereby improve the quality of smoked foods.
摘要:
An optical disc driving device includes a control circuit 4 for performing a gain adjustment for each of two recording surfaces of a multilayered optical disc 1 on the basis of an FE signal in such a way as to maintain a state in which light is focused onto either of the recording surfaces, to generate a focus servo loop signal, and for generating a focus jump signal for causing either a transition from a state in which the light is focused onto one recording surface to a state in which the light is focused onto the other recording surface, or a transition in the opposite direction from a threshold set up on the basis of an amount of gain adjustment, and a focus actuator driving circuit 5 for performing either a focus jump or an operation of maintaining the state in which the light is focused.