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    • 6. 发明授权
    • Wastewater clarification methods and apparatus
    • 污水澄清方法和设备
    • US06878280B2
    • 2005-04-12
    • US10414974
    • 2003-04-16
    • Curtis S. McDowellChris HannumRobert Maurer
    • Curtis S. McDowellChris HannumRobert Maurer
    • B01D21/04C02F3/00
    • B01D21/04B01D21/245B01D21/2483B01D21/2488B01D21/32B01D21/34
    • The invention relates to a liquid clarifier useful for removing solids suspended in a wastewater stream. Settled biological solids are taken from the clarifier and combined in a mixing chamber with a wastewater stream. The combined liquid is provided to a settling region of the clarifier, and suspended solids settle in a biological solids collection region, from which the solids are taken. Clarified liquid can be withdrawn or permitted to overflow from an outlet region in the settling region of the clarifier. The clarifier can enhance the degree of solids removal from wastewater streams having relatively low total suspended solids values, such as outlet streams from fixed film-type digesters. The clarifier is suitable for use in combination with other components of wastewater treatment systems, and can be included as a module in many kinds of wastewater treatment systems.
    • 本发明涉及一种用于去除悬浮在废水流中的固体的液体澄清器。 沉淀的生物固体从澄清器中取出并在混合室中与废水流合并。 将合并的液体提供到澄清池的沉降区域,并将悬浮的固体沉淀在生物固体收集区域中,从中收集固体物质。 澄清液体可以从澄清池的沉降区域中的出口区域排出或允许溢出。 澄清器可以增强从具有相对低的总悬浮固体值的废水流中除去固体的程度,例如来自固定膜型蒸煮器的出口流。 澄清池适用于废水处理系统的其他部件的组合,可作为多种废水处理系统的模块使用。
    • 7. 发明授权
    • Demodulator circuit with phase control loop
    • 具有相位控制回路的解调器电路
    • US4473801A
    • 1984-09-25
    • US104021
    • 1979-12-17
    • Robert MaurerMichael Hoffmann
    • Robert MaurerMichael Hoffmann
    • H03D3/24H03D1/04
    • H03D3/245
    • A demodulator circuit for demodulating an input signal constituted by a modulated carrier. The circuit is provided with a phase control loop composed of a signal mixer having two inputs and an output and providing a signal at its output proportional to the algebraic product of the signals at its inputs, one of the mixer inputs being arranged to receive the demodulator circuit input signal, a voltage controlled oscillator having a control input and an output connected to the other input of the mixer and providing a signal at a frequency varying linearly with the voltage at its control input, and a lowpass filter connected between the mixer output and the oscillator control input. The components of the loop present a set of parameters defining the operation of the loop, which parameters include the peak voltage at the output of the oscillator, the oscillator modulation sensitivity, the voltage amplification factor of the lowpass filter and the gain of the mixer. Circuit devices are connected to the loop for varying at least one of the parameters in inverse proportion to the peak amplitude of the input signal carrier for causing the product of the parameters and the carrier peak amplitude to be substantially constant.
    • 一种用于解调由调制载波构成的输入信号的解调器电路。 该电路设有一个相位控制回路,该相位控制回路由具有两个输入端和一个输出端的信号混合器组成,其输出信号与其输入处的信号的代数产生成比例,其中一个混频器输入被配置为接收解调器 电路输入信号,具有控制输入的压控振荡器和连接到混频器的另一输入端的输出端,并且以与其控制输入端的电压呈线性变化的频率提供信号,以及连接在混频器输出与 振荡器控制输入。 环路的组件提供了一组定义循环操作的参数,这些参数包括振荡器输出端的峰值电压,振荡器调制灵敏度,低通滤波器的电压放大系数和混频器的增益。 电路装置连接到环路,用于与输入信号载波的峰值幅度成反比地改变参数中的至少一个,以使参数和载波峰值振幅的乘积基本恒定。