摘要:
The non-linear elastic deformation component included in the angular transmission error of an actuator provided with a wave gear drive is a component of the angular transmission error occurring due to elastic deformation of a flexible externally-toothed gear when the direction of rotation of the motor shaft changes. This component can be analyzed by driving the motor in a sine-wave shape. A model of the non-linear elastic deformation component (non-linear model) obtained from the analysis results is used to store data or a function for compensating for this component in a motor-control device. Compensation for the non-linear elastic deformation component (θHys) is added to a motor-shaft angle command (θ*M) as a compensation input (Nθ*TE) for feed-forward compensation. As a result, the non-linear elastic deformation component (θHys) can be effectively reduced, and the positioning precision of the actuator can be improved.
摘要:
A positioning system (1) provided with an actuator (2) having a wave gear device (4) is driven and controlled by a semi-closed loop control for controlling the load position of a load device (5) based on the motor position of a motor shaft (31) of a motor (3). In a method for compensating for an angular transmission error by compensating for a motor shaft synchronous component θSync that occurs in synchrony with the motor position and is a relative rotation-synchronous component that includes an angular transmission error component of the wave gear device (4), the positioning system (1) is represented as a two-inertia model, and the motor shaft synchronous component θSync is represented as an oscillation source for producing a twisting action between the two inertia bodies in the two-inertia model. A motor current command iref is corrected by a compensation current command icomp calculated so as to allow the effect of the motor shaft synchronous component θSync on the load position to be compensated in this case, and a motor position command r is corrected by a motor position correction signal θcomp calculated in order to compensate for the effect of the motor shaft synchronous component θSync.
摘要:
To provide: a carboxamide derivative having reduced content of amide ester; a method for producing thereof; and a detergent composition containing the carboxamide derivative and having excellent low-temperature stability. One method for producing a carboxamide derivative is to react carboxamide, produced with a manufacturing method of carboxamide including 0.02% by weight to 0.18% by weight of amide ester, with hydrogen peroxide, wherein the method includes a carboxamide synthesis process to synthesize carboxamide by reacting diamine with fatty acid ester at a molar rate of 1.20 to 1.60. Another method for producing a carboxamide derivative is to react the carboxamide with monohaloalkylcarboxylic acid or a salt thereof. A carboxamide derivative is produced by the method for producing a carboxamide derivative. A detergent composition includes the carboxamide derivative. The carboxamide derivative is preferably amidoamine oxide or amide betaine.
摘要:
A centrifugal multiblade blower includes a first counter-flow prevention means that prevents part of air flowing through a scroll chamber from flowing through a first aperture defined between a multiblade fan and a suction-side case plate of a scroll casing back to a suction port, and a second counter-flow prevention means that prevents part of air flowing through the scroll chamber from flowing through a second aperture defined between the multiblade fan and a motor-side case plate of the scroll casing back to the upstream side of the scroll chamber. A length L1 of the scroll chamber measured in the motor-shaft axial direction is dimensioned to be longer than a length L2 of the multiblade fan measured in the motor-shaft axial direction. Additionally the scroll chamber is gradually enlarged toward a discharge port of the casing.
摘要:
A connecting apparatus, which can be used in combination with a plurality of IC, cards. The connecting apparatus holds an inserted smart card (first IC card) having a first flat type connecting terminal on a first face thereof and holds a memory card (second IC card) having a second flat type connecting terminal on a first face thereof and smaller than the first IC card. The connecting apparatus comprises a first connecting device having a slot into which the smart card is inserted and a connecting electrode which is so formed as to contact the flat type connecting terminal when the smart card is inserted into the slot; a second connecting device having a slot into which the memory card is inserted and a connecting electrode which is so formed as to contact the flat type connecting terminal when the memory card is inserted into the slot. The second connecting device is formed at a side, of the first connecting device, in which the connecting electrode of the first connecting device is formed, such that a region in which the connecting electrode is formed is exposed.
摘要:
Apparatus for hanging a board, such as a road sign board or an advertising sign board, comprises a first cam sleeve which is provided rotatably surrounding the axis of a construction for hanging a board and a second cam sleeve which is provided not rotatably but slidably on the same axis of the first cam sleeve. A board is fixed on the first cam sleeve and the one edge face of the second sleeve is pressed against the edge face of the first cam sleeve by the spring arranged at the other side of the second cam sleeve. Each contacting cam faces of the first and second cam sleeves has two sections which are vertical and slanting to the axis of the cam sleeve.
摘要:
A device which prevents the lateral throw-off of loose yarn ends from a yarn package on a winding machine, a package is driven in contact with a rotating member, and such device consists of at least one blowing nozzle arranged at the outside of an end face of the package so that the direction of the air current blown out from said nozzle is directed toward the contact point between the end face of the package and the rotating member. In a preferred embodiment, air is directed parallel to the junction of the winding yarn package and a grooved guide drum, substantially a right angle to the package end face.
摘要:
A production process for a carboxylic amide compound in which color tone stability after the passage of time is good and in order to provide production processes for betaine, a quaternary ammonium salt and an amine salt using the above carboxylic amide compound, a production process for carboxylic amide and derivatives thereof characterized by reacting higher fatty acid or an ester thereof represented by the following Formula (1) with diamine represented by the following Formula (2) under the presence of an organic phosphonic acid compound represented by the following Formula (3) or adding the organic phosphonic acid compound after the reaction or after removing excess diamine after the reaction: R1—COOR2 (1) wherein each of the R and Z groups and n are defined.
摘要:
A production process for a carboxylic amide compound in which color tone stability after the passage of time is good and in order to provide production processes for betaine, a quaternary ammonium salt and an amine salt using the above carboxylic amide compound, a production process for carboxylic amide and derivatives thereof characterized by reacting higher fatty acid or an ester thereof represented by the following Formula (1) with diamine represented by the following Formula (2) under the presence of an organic phosphonic acid compound represented by the following Formula (3) or adding the organic phosphonic acid compound after the reaction or after removing excess diamine after the reaction: R1—COOR2 (1) wherein each of the R and Z groups and n are defined.