Pressure sensor
    1.
    发明授权
    Pressure sensor 失效
    压力传感器

    公开(公告)号:US4315236A

    公开(公告)日:1982-02-09

    申请号:US109476

    申请日:1980-01-04

    摘要: A sensor block is disposed within a package and includes a semiconductor diaphragm and a circumferential support bonded to the inside of the package. The semiconductor diaphragm is provided with at least one diffused resistor layer formed thereon as a pressure-sensitive element, one surface of the diaphragm being subjected to a reference pressure whereas the other surface is subjected to a fluid pressure to be measured. A diaphragm breakage detecting element including an electrical conductor filament is provided zigzagging back and forth laterally across the boundary between the diaphragm and the circumferential support, the point subject to maximum stress, the conductor filament material being of substantially the same mechanical strength as the diaphragm material, so that, when the diaphragm is broken, the conductor filament is also broken, thus allowing immediate indication of the diaphragm breakage. The detecting element may include a U-shaped protrusion extending radially inwards, substantially reaching the center of the diaphragm in order to detect breakage of the diaphragm at the center thereof, where a second maximum stress occurs.

    摘要翻译: 传感器块设置在封装内,并且包括半导体隔膜和结合到封装内部的周向支撑件。 半导体膜片设置有形成在其上的至少一个扩散电阻层作为压敏元件,隔膜的一个表面受到基准压力,而另一个表面经受要测量的流体压力。 包括电导体细丝的隔膜破损检测元件横向跨越隔膜和周向支撑件之间的边界并且受到最大应力的点的横向前后方向设置,导体细丝材料具有与隔膜材料基本相同的机械强度 ,因此当隔膜破裂时,导体细丝也会断裂,从而立即显示隔膜破损。 检测元件可以包括径向向内延伸的U形突起,基本上到达隔膜的中心,以便检测在其中心处出现第二最大应力的隔膜的断裂。

    Pressure sensor
    2.
    发明授权
    Pressure sensor 失效
    压力传感器

    公开(公告)号:US4287501A

    公开(公告)日:1981-09-01

    申请号:US109484

    申请日:1980-01-04

    摘要: A pair of semiconductor diaphragm blocks, each having a diaphragm on a front surface of which a diffused resistor is formed as a pressure-sensitive element, and a circumferential support integral therewith, are confined within a sealed hollow package and bonded at their circumferential supports to opposite inside surfaces of the package such that the front surfaces of the diaphragms are positioned within a vacuum space within the package. This package is provided with through holes through which fluid pressures subject to measurement are introduced so as to arrive at the back surfaces of the diaphragms.

    摘要翻译: 一对半导体膜片块,其前表面上形成有扩散电阻器作为压敏元件的隔膜和与其形成一体的周向支撑件,被限制在密封的中空包装内并且在其周向支撑件处粘合 使得膜片的前表面位于包装内的真空空间内。 该包装件设置有通孔,通过该通孔引入测量的流体压力以到达隔膜的后表面。

    Pressure sensor
    3.
    发明授权
    Pressure sensor 失效
    压力传感器

    公开(公告)号:US4276533A

    公开(公告)日:1981-06-30

    申请号:US116795

    申请日:1980-01-30

    IPC分类号: G01L9/04 G01L9/00 G01L1/22

    摘要: A diaphragm assembly includes a silicon diaphragm block which has a diaphragm at an eccentric position thereof, a diffused resistor formed as a pressure-sensitive element on a front surface of the diaphragm, and a silicon support plate bonded to the diaphragm block so as to cover a back surface of the diaphragm. The diaphragm assembly is accommodated sealingly within and bonded to the inside of a hollow package at an end portion of the assembly remote from the diaphragm in the direction of extension of the bonded surfaces of the block and the support plate. The front surface of the diaphragm and the diffused resistor thereon are exposed to a vacuum while a fluid pressure subject to measurement is introduced through a passage extending through the package and the end portion of the assembly bonded to the package so as to arrive at a back surface of the diaphragm.

    摘要翻译: 膜片组件包括在其偏心位置处具有隔膜的硅隔膜块,在隔膜的前表面上形成为压敏元件的扩散电阻器,以及结合到隔膜块的硅支撑板,以覆盖 隔膜的后表面。 隔膜组件在远离隔膜的组件的端部沿块体和支撑板的接合表面的延伸方向密封地容纳在中空包装体的内部并结合到中空包装体的内部。 膜片的前表面和其上的扩散电阻器暴露于真空,同时通过延伸穿过封装件的通道和接合到封装件的组件的端部部分引入测量的流体压力,以便到达后面 隔膜表面。

    Pressure sensor
    4.
    发明授权
    Pressure sensor 失效
    压力传感器

    公开(公告)号:US4314226A

    公开(公告)日:1982-02-02

    申请号:US109489

    申请日:1980-01-04

    CPC分类号: G01L19/147 H01L29/84

    摘要: A pressure sensor having a silicon diaphragm whose opposite surfaces are subjected to fluid pressures for measurement. The diaphragm includes a diffused resistor as a pressure-sensitive element on a silicon base, a protective layer composed of a silicon epitaxial layer opposite in conductive type to the resistor and formed on the diffused resistor in order to prevent the resistor from being exposed to a corresponding fluid pressure, and an electrically insulating layer formed on an outer surface of the protective layer.

    摘要翻译: 一种具有硅膜片的压力传感器,其相对表面经受用于测量的流体压力。 隔膜包括作为硅基底上的压敏元件的扩散电阻器,由与电阻器相反的导电类型的硅外延层构成的保护层,并形成在扩散电阻器上,以防止电阻器暴露于 相应的流体压力,以及形成在保护层的外表面上的电绝缘层。

    Pressure sensor having semiconductor diaphragm
    5.
    发明授权
    Pressure sensor having semiconductor diaphragm 失效
    具有半导体膜片的压力传感器

    公开(公告)号:US4314225A

    公开(公告)日:1982-02-02

    申请号:US55755

    申请日:1979-07-09

    摘要: A pressure sensor of the type having a semiconductor diaphragm such as a silicon diaphragm which is formed with at least one diffused resistor in a surface region on one side thereof. A silicon block having the diaphragm is bonded to the inside of a box-like package such that the diffused resistor is exposed in a vacuum chamber defined in the package and that a fluid pressure can arrive at the back side of the diaphragm through a hole of the package. To minimize unwanted straining of the silicon diaphragm by thermal influences, the package is made of a material such as mullite whose linear expansion coefficient is close to that of silicon. To prevent an accidental change in the output characteristic of the sensor by the influence of an unintended external force, the package is supported above a base plate by pillar-like lead frames and confined in a space provided by fixing a cap to the base plate. A pressure introduction pipe is attached to either the base plate or the cap.

    摘要翻译: 这种类型的压力传感器具有诸如硅膜片的半导体膜片,该膜片在其一侧的表面区域中形成有至少一个扩散电阻器。 具有隔膜的硅块结合到箱状封装的内部,使得扩散电阻器暴露在限定在封装中的真空室中,并且流体压力可以通过孔的一个孔到达隔膜的后侧 包装。 为了通过热影响最小化硅膜的不希望的应变,封装由诸如莫来石的材料制成,其线膨胀系数接近硅的膨胀系数。 为了防止由于非预期的外力的影响,传感器的输出特性的意外变化,封装通过柱状引线框架支撑在基板上方,并限制在通过将盖固定到基板上而提供的空间中。 压力引入管连接到基板或盖上。

    Thickness measuring apparatus using light from slit
    6.
    发明授权
    Thickness measuring apparatus using light from slit 失效
    厚度测量装置使用狭缝的光

    公开(公告)号:US6111649A

    公开(公告)日:2000-08-29

    申请号:US415264

    申请日:1999-10-12

    IPC分类号: G01B11/06 H01L21/66

    CPC分类号: G01B11/06 G01B11/0616

    摘要: The apparatus for measuring the thickness of an object being measured has a first position measuring unit for measuring the position of a first surface of the object, a second position measuring unit for measuring the position of a second surface of said object opposite to said first surface, and a thickness obtaining portion for obtaining the thickness of the object on the basis of the position of the first surface determined by said first position measuring unit and the position of the second surface determined by the second position measuring unit. The thickness obtaining portion includes a light source for irradiating slit light on the second surface of the object by obliquely projecting light through a slit, an image pick-up portion having an image pick-up surface opposed to the progressing direction of the reflected slit light from the second surface of the object in order to pick up the reflected slit light to produce the video signal of the slit light, an analog/digital converter for converting the video signal from the image pick-up portion into a digital signal to produce digital image data of the reflected slit light, and a position obtaining section for obtaining the position of the second surface of the object on the basis of the image data of the reflected slit light from the analog/digital converter.

    摘要翻译: 用于测量被测物体的厚度的装置具有用于测量物体的第一表面的位置的第一位置测量单元,用于测量所述物体的与所述第一表面相对的第二表面的位置的第二位置测量单元 以及厚度获得部分,用于基于由所述第一位置测量单元确定的第一表面的位置和由第二位置测量单元确定的第二表面的位置来获得物体的厚度。 厚度获得部分包括用于通过将狭缝倾斜地投影光而在物体的第二表面上照射狭缝光的光源,具有与反射的狭缝光的行进方向相对的图像拾取表面的图像拾取部分 从物体的第二表面拾取反射的狭缝光以产生狭缝光的视频信号;模拟/数字转换器,用于将来自摄像部分的视频信号转换为数字信号,以产生数字信号 反射缝隙光的图像数据以及位置取得部,根据来自模拟/数字转换器的反射狭缝光的图像数据,求出物体的第二面的位置。

    Pinch roller mechanism
    7.
    发明授权
    Pinch roller mechanism 失效
    夹紧辊机构

    公开(公告)号:US4294390A

    公开(公告)日:1981-10-13

    申请号:US85377

    申请日:1979-10-16

    IPC分类号: G11B15/29 B65H17/22

    CPC分类号: G11B15/29

    摘要: A pinch roller of a portable video tape recorder is urged against a capstan shaft by a rotatable arm rotated by an eccentric cam. The arm is provided with a pin spring biased against side surface of the eccentric cam. After a portion of side surface of the eccentric cam most remote from an axis of rotation of the cam has passed by the pin, the rotation of the eccentric cap is stopped thereby to prevent the pinch roller from disengaging the capstan shaft.

    摘要翻译: 便携式录像机的夹送辊通过由偏心凸轮旋转的可旋转臂被推压到主导轴上。 臂设置有偏压偏心凸轮的侧表面的销弹簧。 在远离凸轮旋转轴线的偏心凸轮的一部分侧面经过销后,偏心盖的旋转被停止,从而防止夹送辊脱离主导轴。

    Occupant crash protection device for a vehicle
    8.
    发明授权
    Occupant crash protection device for a vehicle 失效
    车辆乘员碰撞保护装置

    公开(公告)号:US5861681A

    公开(公告)日:1999-01-19

    申请号:US838067

    申请日:1997-04-18

    IPC分类号: B60R21/01 B60R21/32

    CPC分类号: B60R21/017

    摘要: An occupant crash protection device for a vehicle has: a current limiting circuit which receives a supply of a trigger signal generated when it is judged that a significant accident happens, and which controls a squib firing current to have a constant amount; a squib; and a mechanical acceleration switch, the current limiting circuit, the squib, and the acceleration switch being connected in series between terminals of a direct current power source. In the device, the current limiting circuit has: a first n-channel field effect transistor which is connected in series to the squib; a second n-channel field effect transistor which is connected in parallel to the first n-channel field effect transistor and which receives a minute amount of a current obtained by shunting the squib firing current which is to flow through the first n-channel field effect transistor; and bias control means for, in synchronization with the squib firing current, comparing the amount of the current flowing through the second n-channel field effect transistor with a reference amount, and controlling a gate voltage so that the amount of the current flowing through the first n-channel field effect transistor has an amount proportional to the reference amount.

    摘要翻译: 一种用于车辆的乘员碰撞保护装置具有:限流电路,其接收当判断发生重大事故时产生的触发信号的供给,并且控制点火点火电流具有恒定量; 一个爆竹 以及机械加速开关,限流电路,爆管和加速开关串联连接在直流电源的端子之间。 在该器件中,限流电路具有:串联连接到爆管的第一n沟道场效应晶体管; 第二n沟道场效应晶体管,其并联连接到第一n沟道场效应晶体管,并且接收通过分流流过第一n沟道场效应的爆管电流获得的微量电流 晶体管 以及偏压控制装置,用于与点火点火电流同步,将流过第二n沟道场效应晶体管的电流量与参考量进行比较,并且控制栅极电压,使得流过 第一n沟道场效应晶体管具有与参考量成比例的量。

    Video head drum for video tape recorders
    9.
    发明授权
    Video head drum for video tape recorders 失效
    视频磁鼓用于录像机

    公开(公告)号:US4400751A

    公开(公告)日:1983-08-23

    申请号:US239207

    申请日:1981-03-03

    申请人: Tamotsu Tominaga

    发明人: Tamotsu Tominaga

    CPC分类号: G11B5/53

    摘要: A video head drum for a helical scan type video tape recorder, in which a rotary head drum is fixed to a rotary shaft by use of a ring member placed over a cylindrical member which is fitted into the central portion of the rotary head drum and substantially fixed thereto and in which the rotary shaft is inserted, and a pair of ring-shaped fastening plates. The cross section of the ring member in the rotating axial direction indicates an outward bulge at the center and the ring-shaped fastening plates are disposed so as to sandwich the bulge. By fastening the ring-shaped plates, the ring member is forced to be compressed in the radius direction thereof, fixing tightly the cylindrical member to the rotary shaft and consequently fixing the rotary head drum to the rotary shaft, whereby correct attachment of the rotary head drum to the rotary shaft, without causing any eccentric rotation of the rotary head drum or vibrations thereof, can be attained.

    摘要翻译: 一种用于螺旋扫描型磁带录像机的视频磁头鼓,其中旋转磁头鼓通过使用放置在圆柱形构件上的环构件固定到旋转轴,所述圆形构件安装在旋转磁头鼓的中心部分中并且基本上 固定在其上并且旋转轴插入其中,以及一对环形紧固板。 环形构件在旋转轴向方向上的横截面表示在中心处向外凸出,并且环形紧固板被布置成夹住凸起。 通过紧固环形板,环形构件被迫沿其半径方向被压缩,将圆柱形构件紧紧地固定到旋转轴,从而将旋转磁头鼓固定到旋转轴,从而正确地安装旋转磁头 鼓到旋转轴,而不会导致旋转磁头鼓的任何偏心旋转或其振动。

    Movable tape guide devices for use in helical-scan video tape recorders
    10.
    发明授权
    Movable tape guide devices for use in helical-scan video tape recorders 失效
    用于螺旋扫描录像机的可移动带导向装置

    公开(公告)号:US4381530A

    公开(公告)日:1983-04-26

    申请号:US173275

    申请日:1980-07-29

    IPC分类号: G11B15/60 G11B15/66 G11B5/08

    CPC分类号: G11B15/66 G11B15/60

    摘要: In a helical scan type video tape recorder, a tape guide is moved toward and away from a head drum of the recorder. The tape guide is reciprocated by a slider moved in a groove by a lever loosely connected to the slider. A stop member is provided for preventing the slider from moving beyond a limit, and a detector is provided to detect a position of the slider for controlling the lever. Spring means are connected to the lever for applying a predetermined pressure to the stop member when the slider is stopped by the stop member.

    摘要翻译: 在螺旋扫描型磁带录像机中,磁带引导件朝向和离开记录器的磁头鼓移动。 带引导件通过松动地连接到滑块的杠杆通过在凹槽中移动的滑块往复运动。 设置有用于防止滑块移动超过限制的止动构件,并且提供检测器以检测用于控制杠杆的滑块的位置。 当滑块被止动件停止时,弹簧装置连接到杠杆,用于向止动构件施加预定的压力。