Force/pressure detection device utilizing a monomode optical fiber
    1.
    发明授权
    Force/pressure detection device utilizing a monomode optical fiber 失效
    使用单体光纤的力/压力检测装置

    公开(公告)号:US5061847A

    公开(公告)日:1991-10-29

    申请号:US517872

    申请日:1990-05-02

    IPC分类号: G01L9/00 G01L1/24

    CPC分类号: G01L1/242

    摘要: A detection device for measuring force and pressure is disclosed which includes a monomode optical fiber (1) into which polarized light is fed and, at the output of the fiber, is detected by a detection arrangement (4, 80, 81, 30, 40, 31, 41), which is sensitive to the polarization of the light. The detection arrangement is provided with means (30A, 31A) for analyzing the light according to at least two different polarization directions, forming an angle comprised between 30.degree. and 60.degree. between them. According to the invention, the device is provided with means (70, 71, 2) for feeding several non-correlated light signals, each polarized differently, into the input of the fiber, and with means (4) for distinguishing between the light signals in the said detection arrangement at the output of the fiber, which light signals have been fed into the input of the fiber. The invention is applied in intrusion detection, monitoring and security systems.

    摘要翻译: 公开了一种用于测量力和压力的检测装置,其包括馈送偏振光的单模光纤(1),并且在光纤的输出处由检测装置(4,80,81,30,40 ,31,41),其对光的偏振敏感。 该检测装置设置有用于根据至少两个不同偏振方向分析光的装置(30A,31A),在它们之间形成30度至60度之间的角度。 根据本发明,该装置设置有用于将多个不相关的光信号馈送到光纤的输入端的装置(70,71,2),以及用于区分光信号的装置(4) 在光纤输出端的所述检测装置中,哪些光信号已被馈送到光纤的输入端。 本发明应用于入侵检测,监控和安全系统。

    Refrigerating machine comprising an end-of-defrosting detector
    2.
    发明授权
    Refrigerating machine comprising an end-of-defrosting detector 失效
    包括除霜结束检测器的制冷机

    公开(公告)号:US4995244A

    公开(公告)日:1991-02-26

    申请号:US446504

    申请日:1989-12-05

    IPC分类号: F25D21/02 F25D21/08 F25D21/14

    摘要: A refrigerating machine (10) of the refrigerator or freezer type comprises a device (33) for defrosting cold parts to transform the ice into water to be discharged. It has an end-of-defrosting detector (20) comprising:(1) a reservoir (24) which receives the water to be discharged, one of the branches (23) of a siphon (21) extending into said reservoir in order to drain the reservoir when the water reaches the level required for activation of the siphon, the other branch (22) being situated externally of the reservoir,(2) a light barrier (27, 28), comprising a light source and a light receiver arranged around the other branch (22) of the siphon in such a way that the light beam of the light barrier is interrupted by the passage of water through said other branch while defrosting is in progress, and(3) a electric circuit (30, 31, 32, 34) which stops defrosting when the light beam is not interrupted for a predetermined time.

    摘要翻译: 冰箱或冷冻机的冷冻机(10)包括用于对冷部进行除霜以将冰转化为水以排出的装置(33)。 其具有解冻结束检测器(20),其包括:(1)容纳待排出的水的储存器(24),其中一个虹吸管(21)的分支(23)延伸到所述储存器中,以便 当水达到激活虹吸所需的水位时,排出储存器,另一个分支(22)位于储存器的外部,(2)一个光屏障(27,28),包括一个光源和一个光接收器, 围绕虹吸管的另一个分支(22),使得光隔离层的光束在除霜进行期间通过所述另一个分支的水通过而中断,以及(3)电路(30,31 ,32,34),其在光束未被中断预定时间时停止除霜。

    Microwave oven detecting the end of a product defrosting cycle
    3.
    发明授权
    Microwave oven detecting the end of a product defrosting cycle 失效
    微波炉检测产品除霜周期结束

    公开(公告)号:US4870235A

    公开(公告)日:1989-09-26

    申请号:US202161

    申请日:1988-06-02

    IPC分类号: F24C7/02 H05B6/68

    CPC分类号: H05B6/666

    摘要: A microwave oven includes a microwave source and a defrost detector arranged in the oven cavity in the proximity of a frozen product to be processed, the absorption of microwave energy being distributed between the detector and the product and causing their temperature to rise, the temperature variation of the detector being measured by a measuring element producing a corresponding electrical signal. The oven also includes a computing control device which determines completion of defrosting of the product by computing the values at successive instants of the second derivative of such signal as a function of time. The computing control device controls the oven at the end of the defrosting cycle, which is when the value of such second derivative falls below a predetermined value.

    摘要翻译: 微波炉包括微波源和除霜检测器,其布置在待加工的冷冻产品附近的炉腔中,微波能量的吸收分布在检测器和产品之间并使其温度升高,温度变化 的检测器由测量元件测量,产生相应的电信号。 烤箱还包括计算控制装置,其通过计算作为时间的函数的这种信号的二阶导数的连续时刻的值来确定产品的除霜的完成。 计算控制装置在除霜循环结束时控制烘箱,这是当这种二次导数的值低于预定值时。

    Continuous cable fiber optical pressure sensor
    4.
    发明授权
    Continuous cable fiber optical pressure sensor 失效
    连续电缆光纤压力传感器

    公开(公告)号:US4990769A

    公开(公告)日:1991-02-05

    申请号:US410764

    申请日:1989-09-21

    摘要: A fiber-optical pressure sensor, comprising a pressure member (21, 22) which encloses the optical fiber (20) in a sandwich-like manner, and used for the detection of intruders is provided. The pressure sensor is formed by a continuous cable which can be buried and which comprises at least one optical fiber (20) which is capable of detecting, along its entire length, components of a pressure applied to a surface zone of the ground, notably by an intruder. The cable can be wound along an axis of rotation which is substantially perpendicular to its longitudinal direction and can be bent in a direction which is substantially parallel to this axis of rotation. The pressure member may have a continuous or a segmented structure. It may be formed by plates (21, 22) or strips (21, 22) which are rigid or semi-rigid. The pressure member may comprise ribs (27, 28, 29) which serve to capture forces which act in the lateral direction.

    摘要翻译: 提供一种光纤压力传感器,其包括以夹心状包围光纤(20)并用于检测入侵者的压力构件(21,22)。 压力传感器由可以被埋入的连续电缆形成,并且包括至少一个光纤(20),该光纤能够沿其整个长度检测施加到地面的表面区域的压力的分量,特别是通过 入侵者 电缆可以沿着基本上垂直于其纵向方向的旋转轴线缠绕,并且可以在基本上平行于该旋转轴线的方向上弯曲。 压力构件可以具有连续或分段结构。 它可以由刚性或半刚性的板(21,22)或条(21,22)形成。 压力构件可以包括用于捕获在横向方向上作用的力的肋(27,28,29)。

    Device for controlling the charging of rechargeable batteries
    5.
    发明授权
    Device for controlling the charging of rechargeable batteries 失效
    用于控制充电电池充电的装置

    公开(公告)号:US4816737A

    公开(公告)日:1989-03-28

    申请号:US156374

    申请日:1988-02-16

    CPC分类号: H01M10/486 H02J7/0091

    摘要: A device for contolling the charging of rechargeable batteries comprises two temperature sensors deposited on a flexible thin thermally and electrically insulating sheet. The thin sheet is disposed around the rechargeable battery so that one of the sensors determines the temperature of the battery and the other sensor determines the ambient temperature. A charge stopping device stops the charging of the battery when the difference between the temperatures determined by the two sensors has reached a predetermined value. The sensors consist of resistors applied by silk screen printing and disposed in a Wheatstone bridge arrangement.

    摘要翻译: 用于对充电电池充电进行调节的装置包括沉积在柔性薄的电绝缘片上的两个温度传感器。 薄片设置在可再充电电池周围,使得一个传感器确定电池的温度,另一个传感器确定环境温度。 当由两个传感器确定的温度差达到预定值时,充电停止装置停止对电池的充电。 传感器由丝网印刷施加的电阻器组成,并布置在惠斯登电桥布置中。

    Microwave oven providing defrosting control
    6.
    发明授权
    Microwave oven providing defrosting control 失效
    微波炉提供除霜控制

    公开(公告)号:US4871891A

    公开(公告)日:1989-10-03

    申请号:US202160

    申请日:1988-06-02

    IPC分类号: F24C7/02 H05B6/68

    CPC分类号: H05B6/666

    摘要: A microwave oven which provides defrosting control for a frozen product to be defrosted. The oven comprises a microwave source and a detector arranged in the oven cavity in the proximity of the frozen product, the detector including a material which absorbs microwave energy, the absorption of microwave energy by the detector and by the frozen product causing their temperatures to rise and thereby defrosting such product. Variations in the detector temperature are measured by a measuring element which provides an electrical signal corresponding thereto. The detector is configured and insulated so as to have a heat exchange characteristic with its environment which results in its temperature detection sensitivity remaining constant during each of a plurality of successive defrosting operations of the oven. A computer control device evaluates when a defrosting operation has been completed by determining when the slope of the signal variation as a function of time remains the same at successive sampling instants.

    摘要翻译: 一种微波炉,为要解冻的冷冻产品提供除霜控制。 烘箱包括微波源和布置在冷冻产品附近的炉腔中的检测器,检测器包括吸收微波能量的材料,由检测器吸收微波能量和由冷冻产品吸收其导致其温度升高的材料 从而除霜这种产品。 检测器温度的变化通过提供对应于其的电信号的测量元件来测量。 检测器被构造和绝缘,以便具有其环境的热交换特性,这导致其在炉的多次连续除霜操作中的每一个期间其温度检测灵敏度保持恒定。 计算机控制装置通过确定随着时间的变化的信号变化的斜率在连续采样时刻保持不变,来评估何时完成除霜操作。

    Microwave oven comprising a defrosting detector
    7.
    发明授权
    Microwave oven comprising a defrosting detector 失效
    微波炉包括除霜检测器

    公开(公告)号:US4870234A

    公开(公告)日:1989-09-26

    申请号:US258355

    申请日:1988-10-17

    IPC分类号: F24C7/02 H05B6/68

    CPC分类号: H05B6/666

    摘要: A microwave oven which includes a defrosting detector in the oven cavity in the proximity of a frozen product to be defrosted, the detector including a material which absorbs microwave energy, the absorption of microwave energy by the detector and by the product causing their temperatures to rise. Variations in the detector temperature are measured by a measuring element producing an electrical signal corresponding thereto, such signal being used to control the defrosting process. The microwave absorbent material is in the form of a layer deposited on a carrier which is positioned behind the product so that most of the detector area can only receive microwave energy through the product, whereby the rate of change of detector temperature with time decreases as the product defrosts and becomes constant when defrosting has been completed. The carrier may be one of the walls of the oven cavity or the oven tray. The material may be a resistive ink deposited on the oven tray by screen-process printing.

    摘要翻译: 一种微波炉,其包括在待冷冻产品附近的炉腔中的除霜检测器,所述除霜检测器包括吸收微波能量的材料,由检测器吸收微波能量,并引起产品使其温度升高 。 检测器温度的变化通过产生与之对应的电信号的测量元件来测量,这种信号用于控制除霜过程。 微波吸收材料是沉积在载体上的层的形式,其位于产品后面,使得大多数检测器区域仅能够通过产品接收微波能量,由此随着时间的推移,检测器温度的变化率随着 产品除霜并在除霜完成后变得恒定。 载体可以是烤箱腔或烤箱托盘的壁之一。 该材料可以是通过丝网印刷沉积在烤箱托盘上的电阻墨水。

    Microwave oven with a door-closing safety device
    8.
    发明授权
    Microwave oven with a door-closing safety device 失效
    微波炉带门关闭安全装置

    公开(公告)号:US4760229A

    公开(公告)日:1988-07-26

    申请号:US53164

    申请日:1987-05-21

    CPC分类号: H05B6/6417

    摘要: A microwave oven with a door-closing safety device is provided wherein a movable door comprises a device wherein the beam of at least one light emitter is guided by means of light guides towards a light beam detector. The light guides are arranged along a substantial portion of at least one side of the oven door frame. The beam of light in its non-guided path between the emitter and the detector passes through diaphragms, integral with the oven door, each diaphragm having an aperture such that the light beam passes through it when the door is properly closed but wherein the light beam is intercepted by the edge of the diaphragm when the door is not properly closed. The detector activates a signal that actuates the magnetron when the light beam is received; however, when the beam is intercepted, activation of the magnetron is prevented thereby preventing leakage of microwave energy.

    摘要翻译: 提供了一种具有关门安全装置的微波炉,其中可移动门包括其中至少一个光发射器的光束通过光导向光束检测器引导的装置。 导光体沿炉门框架的至少一侧的大部分布置。 在发射器和检测器之间的非引导路径中的光束通过与炉门一体的隔膜,每个隔膜具有孔,使得当门被适当地关闭时光束通过它,但是其中光束 当门未正确关闭时,被隔膜的边缘截取。 当接收到光束时,检测器激活致动磁控管的信号; 然而,当光束被截断时,防止磁控管的激活,从而防止微波能量的泄漏。

    Method of detecting the release of dye from laundry during a washing
operation in a washing machine and implementation of said method
    9.
    发明授权
    Method of detecting the release of dye from laundry during a washing operation in a washing machine and implementation of said method 失效
    在洗衣机中的洗涤操作期间检测染料从衣物中释放的方法和所述方法的实施

    公开(公告)号:US4406028A

    公开(公告)日:1983-09-27

    申请号:US274935

    申请日:1981-06-18

    CPC分类号: G01N21/314 D06F39/004

    摘要: A method of detecting the release of dye from laundry in a washing machine despite the presence of dirt in the washing water. During a washing operation, a radiation flux including an infrared flux part (.phi..sub.I) and a visible flux part (.phi..sub.V) is passed through the wash water in which it is subject to absorption and diffusion. The flux parts .phi..sub.I and .phi..sub.V are compared during the entire washing program and the ratio of .phi..sub.V and .phi..sub.I is determined. The release of dye is signalled by a substantial variation of said ratio. The signal may be used for actuating an alarm device and/or controlling the washing program.

    摘要翻译: 即使在洗涤水中存在污物,也可以在洗衣机中检测染料从衣物中释放的方法。 在洗涤操作期间,包括红外线通量部分(phi I)和可见光通量部分(phi V)的辐射通量通过其被吸收和扩散的洗涤水。 在整个洗涤程序期间比较通量部分phi I和phi V,并确定phi V和phi I的比率。 染料的释放通过所述比例的显着变化来表示。 信号可以用于启动报警装置和/或控制洗涤程序。

    Method of determining the average nature of the materials of the laundry
in a laundry washing machine and washing machine employing said method
    10.
    发明授权
    Method of determining the average nature of the materials of the laundry in a laundry washing machine and washing machine employing said method 失效
    一种确定洗衣机中衣物的平均性质的方法以及采用所述方法的洗衣机

    公开(公告)号:US4400838A

    公开(公告)日:1983-08-30

    申请号:US271302

    申请日:1981-06-08

    IPC分类号: D06F33/02 D06F35/00 D06F39/00

    CPC分类号: D06F39/003

    摘要: A method of determining the average nature of the materials of a laundry in a laundry washing machine including measuring the weight of the laundry loaded into the machine, detecting the volume and the level of water admitted to the tub of the machine, determining the volume of water absorbed per unit of weight of the laundry and from these factors determining the nature of the materials in the laundry for a determination of the specific treatment and washing operation for such materials. A laundry washing machine with sensors and circuitry to carry out the method is also disclosed.

    摘要翻译: 一种确定洗衣机中的衣物的材料的平均性质的方法,包括测量装入机器中的衣物的重量,检测进入机器桶的水的体积和水平,确定 确定衣物中每单位重量的水,以及确定衣物中材料性质的因素,以确定这些材料的具体处理和洗涤操作。 还公开了一种具有用于执行该方法的传感器和电路的洗衣机。