摘要:
A guided-wave circuit with a phase adjusting plate which adjusts optical path length errors, occurring during the manufacture of PLC, by an additional processing performed after the production of the PLC; and a method for producing the guided-wave circuit. A guided-wave circuit with an amplitude adjusting plate which adjusts the amplitude characteristics of light by an additional processing performed after the production of the PLC; and a method for producing the guided-wave circuit. A guided-wave circuit with a birefringence adjusting plate which adjusts the birefringence of light by an additional processing subsequent to the manufacture of the PLC; as well as a method for producing the guided-wave circuit. The guided-wave circuit includes a groove crossing a plurality of waveguides constituting the optical waveguides, a plate having optical characteristics spatially changed so as to adjust the optical characteristics at the intersections of the plate with the optical waveguides when the plate is inserted into the groove, and an adhesive for fixing the plate in the groove. The guided-wave circuit also includes both a phase adjusting plate and an amplitude adjusting plate to achieve further improvement in the optical characteristics. An apparatus for producing these optical characteristics adjusting plates is also included.
摘要:
A guided-wave circuit module includes a guided-wave circuit chip having an input waveguide part and an output waveguide part at the ends thereof, a guided-wave circuit part having a predetermined function and positioned between the input waveguide part and the output waveguide part; and a holder for supporting the guided-wave circuit chip, wherein the guided-wave circuit part of the guided-wave circuit chip does not come in contact with the chip holder; at least part of the input and output waveguide parts of the guided-wave circuit chip is fixed to the holder with a fixing agent; and the packaged chip does not have a warp which leads to deterioration of characteristics. A fixing agent having a high hardness is applied to the periphery of the endfaces of the input and output waveguide parts of the guided-wave circuit module and to the periphery of the fiber endfaces of the optical fiber array connected to the module. Therefore, these endfaces can accurately be polished and the waveguide can be connected to the optical fibers at a sufficiently low fiber connection loss and a high return loss.
摘要:
A system for judging success or failure of a work of a robot includes a position command generating unit, a contact position detecting unit, and a work success/failure judging unit. The position command generating unit generates a position command enabling movement of a fingertip of the robot so that a position and posture detecting unit, which is attached to the fingertip of the robot and has an elastic transformation area, is brought into contact with a predetermined position relating to a work target after the predetermined work is performed for the work target by the robot. The contact position detecting unit calculates a contact position that is a position of a tip end of the position and posture detecting unit at the time of being in contact with the predetermined position based on a value of an external force applied to the fingertip and the position of the tip end of the position and posture detecting unit. The work success/failure judging unit judges the predetermined work to be successful when the calculated contact position is within a predetermined range and judges the predetermined work to be failed when the calculated contact position is not within the predetermined range.
摘要:
An apparatus has a parameter initial value calculator, a force reference impression part, an evaluation data measurement part, an allowable value setting part, a viscosity parameter calculator, an end determining part, and an inertia parameter adjusting part. The force reference impression part intermittently supplies a force reference to an impedance controller. The evaluation data measurement part measures setting time of time response, an overshoot amount, and the number of vibration times. The allowable value setting part sets allowable values of the overshoot amount and the setting time. The viscosity parameter calculator calculates a viscosity parameter with which the setting time becomes shortest. The end determining part determines the end or continuation of the process by comparing the adjustment values with the allowable values. The inertia parameter calculator adjusts the inertia parameter according to the adjustment values of the overshoot amount and the setting time.
摘要:
First calculation means calculates a TCP velocity error vector Verr when wrist axes performs rotational following movement, second calculation means selects a component, including the sign, of the TCP velocity error vector Verr, third calculation means decomposes the selected velocity error vector into a joint velocity vector ωerr, fourth calculation means integrates the joint velocity ωerr and calculates a position correction amount vector θadd, and the position correction amount vector θadd is fed back to position control means with torque limits.
摘要:
A system for judging success or failure of a work of a robot includes a position command generating unit, a contact position detecting unit, and a work success/failure judging unit. The position command generating unit generates a position command enabling movement of a fingertip of the robot so that a position and posture detecting unit, which is attached to the fingertip of the robot and has an elastic transformation area, is brought into contact with a predetermined position relating to a work target after the predetermined work is performed for the work target by the robot. The contact position detecting unit calculates a contact position that is a position of a tip end of the position and posture detecting unit at the time of being in contact with the predetermined position based on a value of an external force applied to the fingertip and the position of the tip end of the position and posture detecting unit. The work success/failure judging unit judges the predetermined work to be successful when the calculated contact position is within a predetermined range and judges the predetermined work to be failed when the calculated contact position is not within the predetermined range.
摘要:
A demodulator is provided for a multilevel differential phase shift keyed signal, capable of eliminating polarization dependence due to birefringence and polarization coupling-induced light resulting from a waveguide structure, and also, polarization dependence due to dynamic birefringence produced at the time of driving a variable phase adjuster. The demodulator is configured of an optical delay line interferometer of a waveguide interference type. The S/N ratio of a demodulated signal in the demodulator formed by the optical delay line interferometer can be also improved. Further, both the polarization dependence and the temperature dependence of the optical delay line interferometer can be reduced. The disposition of a polarization converter and groves filled with a temperature compensation material makes it possible to provide a circuit configuration suitable for eliminating the polarization dependence and the temperature dependence of the optical delay line interferometer.
摘要:
The present invention provides a safe robot system adapted to always and clearly indicate a worker whether an emergency stop operation can be performed by an emergency stop operation section in an unwired portable teaching operation section, thereby to prevent occurrence of a misconception.A portable teaching operation portion 3 includes a display section (13) configured to indicate whether an emergency stop operation to be conducted by an emergency stop operation section (9) can be performed.
摘要:
A planar lightwave circuit type variable optical attenuator with a small polarization dependent loss is provided. By setting the waveguide birefringence (absolute value) in first and second optical coupler sections equal to or greater than 3.5×10−4, the polarization mode coupling is made equal to or less than −25 dB, and the effect of the polarization dependence caused by the polarization mode coupling at the cross port of the first and second optical couplers is suppressed. In addition to or independently of this, the arm waveguide length can be designed to be equal to an integer multiple of the optical beat length obtained by dividing a used optical wavelength by the waveguide birefringence.
摘要:
Provided is a CAN system that can generate an error signal without requiring hardware for generating an error signal to be connected to a bus. A protocol processing part within a CAN controller incorporates error data into receive data or send data, based on error data information stored in a register.