摘要:
The present invention provides a water-proof sound-transmitting membrane including a polytetrafluoroethylene (PTFE) porous membrane, in which the waterproofness is enhanced further with little lowering of the sound transmittance. The water-proof sound-transmitting membrane includes the PTFE porous membrane. The PTFE porous membrane includes a first porous layer, and a second porous layer stacked on and integrated with the first porous layer by a binding force acting between PTFE matrices. The first porous layer and the second porous layer each are composed of PTFE with a number-average molecular weight of 5.0×107 or more determined by a standard specific gravity method. At least one layer selected from the first porous layer and the second porous layer has an average pore diameter of 1 μm or less. The water-proof sound-transmitting membrane has a surface density of 1 g/m2 to 10 g/m2.
摘要翻译:本发明提供一种防水透声膜,其包括聚四氟乙烯(PTFE)多孔膜,其中防水性进一步增强,声透射率几乎不降低。 防水透声膜包括PTFE多孔膜。 PTFE多孔膜包括第一多孔层和通过作用在PTFE基质之间的结合力堆叠在第一多孔层上并与其一体化的第二多孔层。 第一多孔层和第二多孔层各自由通过标准比重法测定的数均分子量为5.0×10 7以上的PTFE构成。 从第一多孔层和第二多孔层中选择的至少一层的平均孔径为1μm以下。 防水透声膜的表面密度为1g / m 2〜10g / m 2。
摘要:
The present invention provides a sound-transmitting membrane for a microphone, to be disposed to a sound-collecting opening of the microphone so as to allow sound to transmit through the membrane while preventing a foreign matter from entering into the microphone through the opening. This membrane for a microphone prevents the entry of a foreign matter, such as fine dust and water vapor, that is difficult for conventional sound-transmitting membranes to block, and ensures the microphone performance. This membrane for a microphone is composed of a nonporous film or a multilayer membrane including a nonporous film, has a surface density of 30 g/m2 or less, and has a sound transmission loss of less than 3 dB in a frequency range of 300 to 4000 Hz.
摘要翻译:本发明提供了一种用于麦克风的声音传送膜,其被设置在麦克风的声音收集开口上,以便允许声音透过膜传输,同时防止异物通过开口进入麦克风。 这种用于麦克风的隔膜防止了传统的隔音膜难以阻挡的诸如微细尘埃和水蒸气的异物进入,从而确保麦克风的性能。 该麦克风用膜由无孔膜或包含无孔膜的多层膜构成,表面密度为30g / m 2以下,在300〜300的频率范围内具有小于3dB的声音传输损失 4000 Hz。
摘要:
The present invention provides a sound-transmitting membrane for a microphone, to be disposed to a sound-collecting opening of the microphone so as to allow sound to transmit through the membrane while preventing a foreign matter from entering into the microphone through the opening. This membrane for a microphone prevents the entry of a foreign matter, such as fine dust and water vapor, that is difficult for conventional sound-transmitting membranes to block, and ensures the microphone performance. This membrane for a microphone is composed of a nonporous film or a multilayer membrane including a nonporous film, has a surface density of 30 g/m2 or less, and has a sound transmission loss of less than 3 dB in a frequency range of 300 to 4000 Hz.
摘要翻译:本发明提供了一种用于麦克风的声音传送膜,其被设置在麦克风的声音收集开口上,以便在防止异物通过开口进入麦克风期间允许声音透过膜传播。 这种用于麦克风的隔膜防止了传统的隔音膜难以阻挡的诸如微细尘埃和水蒸气的异物进入,从而确保麦克风的性能。 该麦克风用膜由无孔膜或包含无孔膜的多层膜构成,表面密度为30g / m 2以下,在300〜300的频率范围内具有小于3dB的声音传输损失 4000 Hz。
摘要:
First, a mixture of a polytetrafluoroethylene fine powder and a liquid lubricant into a sheet-form body extending in a first direction. Next, the liquid lubricant is removed from the sheet-form body. Then, the sheet-form body is stretched by a factor of 40 to 250 in the longitudinal direction at a temperature equal to or higher than a melting point of polytetrafluoroethylene, and the stretched sheet-form body is further stretched by a factor of 3 to 40 in the width direction. Thus, a highly air-permeable porous polytetrafluoroethylene membrane is obtained.
摘要:
A charge control device including: a charge control unit configured to select a power storage device to be charged from a plurality of power storage devices in accordance with degrees of subsequent deterioration of the power storage devices, the degrees being calculated based on battery information of the power storage devices each having a secondary battery; and a transmission unit configured to transmit a charge command to a power storage device selected by the charge control unit.
摘要:
A power storage device including: a secondary battery; an acquisition unit that acquires charging period information for charging the secondary battery; and a charge control unit that calculates a charging power on the basis of the charging period information and controls charging power used for charging the secondary battery so that of the charging power is equal to the calculated charging power.
摘要:
An electrostatic discharge (ESD) protector includes a first high heat-conductive substrate, a second high heat-conductive substrate, a varistor layer, and a plurality of via-hole electrodes. The first high heat-conductive substrate is provided with a plurality of first through-holes. The second high heat-conductive substrate is provided with a plurality of second through-holes. The varistor layer that is mainly composed of zinc oxide is disposed between the first high heat-conductive substrate and the second high heat-conductive substrate. The varistor layer includes internal electrodes. Each of via-hole electrodes penetrates the varistor layer and fills both one of the first through-holes and one of the second through-holes to couple both the ones to each other.
摘要:
A power supply controller with a function to identify whether or not a signal that was output is reliable and to perform the necessary processing on the input side when an unreliable signal was sent that might adversely affect the input side in communication systems. A controller 1 and a controlled device 21 are connected at both ends of a cable 17 (27) with connectors. The controller contains a first processing system 1, a second processing system 2, and a comparator 7. The first processing system and the second processing system 2 are for example equivalent to microcomputers, etc. The comparator 7 compares the outputs of these two processors and generates a match/mismatch signal according to whether the outputs are a match or not. When the two outputs are a match then the outputs of these processors are reliable. However if the outputs are a mismatch then it signifies there is an error in one of these processing systems. Either of these processors outputs a general output signal separate from the match/mismatch signal. The general output signal may be output from either the first processing system or the second processing system without passing through the comparator. The general output signal is converted to a contact signal. The match/mismatch signal functions to turn the monitor signal on the monitor signal line on and off. The actual connection for this (output signal line) is shown in the drawings. The monitor signal line forms a loop on the monitor signal line for the signal to move back and forth between the controller and the controlled device. The controlled device contains an internal open-identifier for sensing whether the control signal line is open or closed.
摘要:
A control apparatus is provided, which includes: a determination section that determines a control command according to sensor information, on the basis of a control rule capable of being set by a user for determining the control command controlling a device; and a control section that controls the device in accordance with the control command determined by the determination section.
摘要:
A high-performance information processing technique permitting updating of an instruction buffer ready for effective prefetching to branch instructions and returning to the subroutine with a small volume of hardware is to be provided at low cost. It is an information processing apparatus equipped with a CPU, a memory, prefetch means and the like, wherein a prefetch address generator unit in the prefetch means decodes a branching series of instructions including at least one branched address calculating instruction and branching instruction to a branched address out of a current instruction buffer storing the series of instructions currently accessed by the CPU, and thereby looks ahead to the branching destination address. The information processing apparatus further comprises a RTS instruction buffer for storing a series of instructions of the return destinations of RTS instructions, and series of instructions stored in the current instruction buffer are saved into the RTS instruction buffer.