Abstract:
A rubber composition useful for shaping a vibration-damping rubber article is formulated with a synthetic rubber, which is preferably an organopolysiloxane gum, a finely divided silica filler having a specific surface area of at least 50 m.sup.2 / g and a specific .alpha.,.omega.-dihydroxy diorganopolysiloxane expressed, for example, by HO--SiMePh--O.sub.m H, in which Me is a methyl group, Ph is a phenyl group and m is a positive integer of 2-20.
Abstract:
The invention provides a flexible metal-foiled laminate of an insulating base film of a synthetic resin, e.g. polyimide, and a metal, e.g. copper, foil adhesively bonded together and suitable for use as a base plate for printed circuit boards by virtue of the high heat resistance and greatly increased adhesive bonding strength between the base film and the metal foil. The laminate is prepared by use of a silicone-based adhesive and the surface of the base film is, prior to adhesive bonding, subjected to a treatment of exposure to an atmosphere of low temperature plasma generated in a gaseous organosilicon compound such as trimethyl ethoxy silane, optionally, diluted with an inorganic gas such as oxygen.
Abstract:
An inductance-type rotation angle sensor includes: a stator formed by printing an annularly formed magnetic conductor and a receiving conductor placed adjacent to the magnetic conductor on a glass-epoxy-resin substrate; and a rotor having an excitation conductor attached thereto in a manner opposing the magnetic conductor. In the sensor, a thermosetting-resin covering layer, which is connected together through a periphery of the substrate and a through-hole included in this substrate, is formed on both front and back surfaces of the substrate by molding; a portion of the covering layer covering the magnetic conductor and the receiving conductor is formed as a thin thickness part which is thinner in thickness than a remaining portion of the covering layer; and the stator is buried in a thermoplastic-resin control housing with the thin thickness part being exposed to an outside. Accordingly, it is possible to provide an inductance-type rotation angle sensor which is capable of restraining the change that occurs in the plate thickness of the substrate due to temperature change, and which is capable of stabilizing the detection precision of the angle change of the rotor.
Abstract:
The present invention provides a light quantity measuring apparatus capable of properly measuring, in short time, light to be measured whose quantity fluctuates periodically. Charges generated and stored in photodiodes during a measurement period are read in a plurality of times. A control unit obtains pixel data according to quantity of the charges generated and stored by the photodiodes in a plurality of storage periods obtained by dividing a measurement period. Further, the control unit adds up the plurality of pieces of pixel data, and calculates pixel data according to the quantities of charges generated and stored by the photodiodes in the measurement period.
Abstract:
An inductance-type rotation angle sensor includes: a stator formed by printing an annularly formed magnetic conductor and a receiving conductor placed adjacent to the magnetic conductor on a glass-epoxy-resin substrate; and a rotor having an excitation conductor attached thereto in a manner opposing the magnetic conductor. In the sensor, a thermosetting-resin covering layer, which is connected together through a periphery of the substrate and a through-hole included in this substrate, is formed on both front and back surfaces of the substrate by molding; a portion of the covering layer covering the magnetic conductor and the receiving conductor is formed as a thin thickness part which is thinner in thickness than a remaining portion of the covering layer; and the stator is buried in a thermoplastic-resin control housing with the thin thickness part being exposed to an outside. Accordingly, it is possible to provide an inductance-type rotation angle sensor which is capable of restraining the change that occurs in the plate thickness of the substrate due to temperature change, and which is capable of stabilizing the detection precision of the angle change of the rotor.
Abstract:
The present invention provides a light quantity measuring apparatus capable of properly measuring, in short time, light to be measured whose quantity fluctuates periodically. Charges generated and stored in photodiodes during a measurement period are read in a plurality of times. A control unit obtains pixel data according to quantity of the charges generated and stored by the photodiodes in a plurality of storage periods obtained by dividing a measurement period. Further, the control unit adds up the plurality of pieces of pixel data, and calculates pixel data according to the quantities of charges generated and stored by the photodiodes in the measurement period.
Abstract:
A measured fluorescence amount and a previously set threshold value α1 are compared and when the measured fluorescence amount exceeds the threshold value α1, a message such as “curing reaction completion” is issued. Note that when this “curing reaction completion” is issued, an irradiation end instruction is given to a light source part from a curing reaction detector, and irradiation of a curing ultraviolet ray is stopped. Along with the stop of the curing ultraviolet ray, the irradiation of an exciting ultraviolet ray is also stopped.
Abstract:
The present invention provides an optical switch that is provided with a plurality of output side optical transmission means 24; at least one input side optical transmission means 7; reflecting means 3 which moves to be positioned with respect to any one of the output side optical transmission means 24 and reflects an optical signal to the input side optical transmission means 7; and driving means 4 which moves the reflecting means 3 to each of the output side optical transmission means 24.
Abstract:
An optical reflection sensor emits light and its reflection from a target object is received. A signal processor carries out a measurement on the received reflected light such as the distance to the target object each time the reflected light is received. Repeatability of measured values is calculated and displayed on a display device incorporated into the housing of the sensor. The display device may have two display areas such that the calculated repeatability and the measured value can be displayed simultaneously. The calculated repeatability may be compared with a specified threshold value, with the result of the comparison displayed. The housing may also incorporate an input device through which a required level of accuracy may be set.
Abstract:
In a television signal transmitting and receiving apparatus, a digitally coded television signal, such as an MPEG2-Video stream, is transmitted, and an accounting level requested by the use is input to the receiver, whereby the decoding coefficient at decoding in an MPEG2-Video decoder is varied to obtain n image having a resolution according to the accounting level. In this apparatus, it is possible to offer a service with a resolution according to the accounting level.