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    • 6. 发明授权
    • Clock radio system with remote alert device
    • 带远程警报设备的时钟收音机系统
    • US5737692A
    • 1998-04-07
    • US720336
    • 1996-09-27
    • Michael Lang
    • Michael Lang
    • G04G13/02G04G21/04G08B1/08H04B7/00
    • G04G21/04G04G13/02G08B1/08
    • A system and method for providing a remote alert from a clock radio to a user at a predetermined time without disturbing others around him. The clock radio is preferably a superheterodyne receiver and includes an alert signal circuit for providing radio frequency alert signals at a predetermined alarm time and a radio frequency transceiver for receiving broadcast radio frequency signals and for transmitting radio frequency signals including the broadcast radio frequency signals and the radio frequency alert signals. A timing circuit in the clock radio includes a coincidence detecting circuit which detects the coincidence between the time of day and the predetermined alarm time, and causes the alert signal circuit to provide an alert signal to the radio frequency transceiver for transmission to a selected wireless remote alert device at the predetermined time. The selected wireless remote alert device receives radio frequency signals at the predetermined time, including the radio frequency alert signals, and processes such received radio frequency signals in a manner similar to the superheterodyning technique. The thus processed signal will then be provided to a transducer in the wireless remote alert device, which will in turn produce a tone or a small vibration, or reproduce the broadcast AM or FM signal. The wireless remote alert device is preferably inserted in the user's ear, awakening only the user.
    • 一种用于在预定时间向用户提供来自时钟无线电的远程警报而不干扰他周围的人的系统和方法。 时钟收音机优选地是超外差接收机,并且包括用于在预定警报时间提供射频警报信号的警报信号电路和用于接收广播射频信号的射频收发器,以及用于发射包括广播射频信号和 射频警报信号。 时钟收音机中的定时电路包括:一致检测电路,用于检测一天中的时间与预定的闹钟时间之间的一致性,并使报警信号电路向射频收发器提供警报信号,以便传输到所选的无线遥控器 警报装置。 所选择的无线远程警报装置在预定时间接收射频信号,包括射频警报信号,并以类似于超外差技术的方式处理这样接收的射频信号。 这样处理的信号然后将被提供给无线远程警报装置中的换能器,这又将产生一个音调或一个小的振动,或者再现广播的AM或FM信号。 无线远程警报装置优选地插入用户的耳朵中,仅唤醒用户。
    • 7. 发明授权
    • Mass flowmeter working on the coriolis principle
    • 质量流量计在CORIOLIS原理上的工作
    • US5218873A
    • 1993-06-15
    • US647919
    • 1991-01-30
    • Michael Lang
    • Michael Lang
    • G01F1/84
    • G01F1/8413G01F1/8422G01F1/8495
    • This mass flowmeter is designed to be installed in pipelines having nominal diameters greater than about 150 mm. It has a support tube (11), a vibrating system (12) disposed axially in the support tube and consisting of two straight measuring tubes (21, 22) mounted in a holder (23, 15) at each of their ends, and a vibration exciter (50) which sets each measuring tube into natural-resonance flexural vibration at the center. The soft-magnetic armature (51) of the vibration exciter (50) is secured to one of the measuring tubes, and its electromagnet (52) is mounted in the wall of the support tube (11) opposite the armature (51) via the metallic, nonferromagnetic coil can (53) and contains a soft-magnetic core (54). The central portion (55) of the latter, which is disposed in an energizing coil (57), carries a permanentmagnet inset (58) at the end opposite the armature, and the edge portions (56) of the core (54) extend along the outside of the energizing coil. Vibration sensors ( 30, 31) for sensing the mechanical vibrations are mounted on both sides of and at preferably equal distances from the vibration exciter (50), and an evaluation circuit (60) is provided for determining the mass rate of flow from the phase difference of the signals delivered by the vibration sensors. This results in a very high efficiency and a linear excitation-current dependence of the vibration exciter.
    • 该质量流量计设计成安装在公称直径大于约150 mm的管道中。 其具有支撑管(11),轴向设置在支撑管中的振动系统(12),其由安装在其每个端部的保持器(23,15)中的两个直的测量管(21,22)组成,并且 振动激励器(50)将每个测量管设置为中心处的自然共振弯曲振动。 振动激励器(50)的软磁性衔铁(51)固定在一根测量管上,其电磁铁(52)经由电枢(51)与电枢(51)相对地安装在支撑管(11)的壁上 金属,非​​铁磁线圈罐(53)并且包含软磁芯(54)。 设置在激励线圈(57)中的后者的中心部分(55)在与电枢相对的端部处承载永磁体插入件(58),并且芯部(54)的边缘部分(56)沿着 激励线圈的外部。 用于感测机械振动的振动传感器(30,31)安装在与振动激励器(50)的两侧并且优选地等距离处,并且提供评估电路(60),用于确定来自相位的质量流量 由振动传感器传递的信号的差异。 这导致振动激励器的非常高的效率和线性激励电流依赖性。