公开(公告)号：US4958070A

公开(公告)日：1990-09-18

申请号：US267896

申请日：1988-11-07

申请人： David W. Jordan ,  William L. Thompson

发明人： David W. Jordan ,  William L. Thompson

IPC分类号： G01F1/32

CPC分类号： G01F1/3245

摘要： A digital controlling system for fiber optic vortex shedding flowmeters which provides a new and improved preamp circuit and a computer for correcting temperature, linearity and hysteresis effects. The controlling system overcomes the inherent non-linearity of the vortex shedding phenomena and also provides two-way communication between a central control unit and the fiber optic vortex shedding flowmeter. The improved preamp circuitry increases the low-end range of fiber optic vortex shedding flowmeters.

公开(公告)号：US4432242A

公开(公告)日：1984-02-21

申请号：US329539

申请日：1981-12-10

申请人： William L. Thompson ,  Michael S. Willey

发明人： William L. Thompson ,  Michael S. Willey

IPC分类号： G01F1/32 ,  G01P5/01

CPC分类号： G01F1/329

摘要： A notch filter arrangement for reducing vibration noise in a vortex shedding flowmeter circuit is disclosed which utilizes a plurality of sequentially closable switches. The plurality of switches are all closed during a single period of the vibration signal fundamental frequency. Each switch is connected in series to a capacitor which is connected to the output signal of a vortex sensor so that the instantaneous average voltage of the vibration signal during any increment of time is subtracted from the vortex shedding frequency signal to produce a noise reduced signal.

摘要翻译： 公开了一种用于减少涡流脱流流量计电路中的振动噪声的陷波滤波器装置，其利用多个可顺序关闭的开关。 多个开关在振动信号基频的单个周期期间全部关闭。 每个开关串联连接到与涡流传感器的输出信号连接的电容器，从而从涡流脱落频率信号中减去任何时间增量期间的振动信号的瞬时平均电压，以产生降噪信号。

公开(公告)号：US6086828A

公开(公告)日：2000-07-11

申请号：US171874

申请日：1998-10-27

申请人： William L. Thompson

发明人： William L. Thompson

IPC分类号： F01N3/24 ,  B01D53/34 ,  B01D53/38 ,  B01D53/74 ,  F23G5/50 ,  F23G7/06 ,  F01N3/10

CPC分类号： B01D53/343 ,  B01D53/346 ,  B01D53/38 ,  B01D53/74 ,  F23G5/50 ,  F23G7/068 ,  F23G2207/101 ,  F23G2207/102 ,  F23G2207/40 ,  Y02E20/12

摘要： A regenerative thermal oxidizer (H-101) includes a number of heat exchange columns (A, B) topped by a combustion chamber (C-101). Contaminated air is directed into one of the columns and oxidation is completed as the flow passes through the combustion chamber (C-101). From the combustion chamber (C-101), the now clean air flows vertically downward through another column and then is directed via an outlet through an outlet manifold and released to atmosphere or recirculated back to the oxidizer (H-101). A combustible fuel is added to the contaminated air prior to its entry into one of the columns. The addition of the combustible fuel is regulated by continuously monitoring the inlet and outlet temperatures (TE-101A, TE-108A), and comparing a difference between these temperatures to a predetermined value. Further control can be achieved by measuring the flow of contaminated air to the oxidizer (H-101) via pressure differential and coordinating that measurement with the temperature differential measurement.

摘要翻译： PCT No.PCT / US97 / 08009 Sec。 371日期：1998年10月27日第 102（e）1998年10月27日PCT PCT 1997年5月8日PCT公布。 公开号WO97 / 43527 日期：1997年11月20日再生热氧化剂（H-101）包括多个由燃烧室（C-101）顶起的热交换塔（A，B）。 污染的空气被引导到一个塔中，并且当流动通过燃烧室（C-101）时氧化完成。 从燃烧室（C-101），现在的清洁空气垂直向下流过另一列，然后通过出口通过出口歧管引导并释放到大气中或再循环回到氧化器（H-101）。 在被污染的空气进入其中一个塔之前，将可燃燃料加入。 通过连续监测入口和出口温度（TE-101A，TE-108A）以及将这些温度之间的差值与预定值进行比较来调节可燃燃料的添加。 可以通过压差测量氧化剂（H-101）的污染空气流量并通过温度差测量来协调该测量来进一步控制。

公开(公告)号：US5074987A

公开(公告)日：1991-12-24

申请号：US469869

申请日：1990-01-24

申请人： William L. Thompson

发明人： William L. Thompson

IPC分类号： G01N25/26 ,  G01N27/416 ,  G01N27/419 ,  G01N27/42 ,  G01N33/00 ,  G01N33/22

CPC分类号： G01N33/225 ,  G01N27/419

摘要： A method and device for measuring energy in fuel gas comprises a solid electrolyte oxygen pump for generating an amount of oxygen in response to current being supplied to the pump. A sample of the gas is mixed with the oxygen from the pump to produce a mixture which is subjected to complete combustion in a catalytic combustor. An oxygen sensor is connected to the catalytic combustor for measuring excess oxygen in the exhaust gas from the combustor. A signal from the oxygen signal is compared to a known and desired amount of excess oxygen in the exhaust gas. If there is too much or too little oxygen inthe exhaust gas, a feedback signal is used to adjust the amount of current being supplied to the oxygen pump until the actual amount of excess oxygen is equal to the selected amount of excess oxygen. The selected amount of excess oxygen is indicative of complete combustion of the sample mixture. With the excess oxygen equaling the desired oxygen in the exhaust gas, the amount of current being supplied to the pump is used to calculate the energy in the fuel sample.

公开(公告)号：US4816703A

公开(公告)日：1989-03-28

申请号：US764914

申请日：1985-08-12

申请人： Edward L. Sterling, Jr. ,  William L. Thompson

发明人： Edward L. Sterling, Jr. ,  William L. Thompson

IPC分类号： G06F13/00 ,  G08C19/02 ,  H04B3/50 ,  H04B3/54 ,  H03K17/16

CPC分类号： G08C19/02

摘要： An on-line serial communication interface is established from the transmitter of a two line current loop transmitter to a digital circuit such as a computer or hand-held terminal which receives and processes digital voltage pulses. The interface includes a comparator having a positive terminal connected by a capacitor to one of the current lines, and a negative terminal connected to a source of small positive voltage. The output of the comparator is connected to an input port of the digital device. The transmitter modulates the current on the current loop by a small amount with respect to the analog current communicated by the transmitter. This generates voltage pulses in the capacitor which are compared to the selected voltage and are amplified to form large pulses used for communication with the computer or hand-held terminal.

摘要翻译： 从两线电流环路发射机的发射机建立到线路串行通信接口到数字电路，例如接收和处理数字电压脉冲的计算机或手持终端。 该接口包括一个比较器，其具有通过电容器连接到一条电流线的正极端子，以及连接到小的正电压源的负极端子。 比较器的输出连接到数字设备的输入端口。 发射机相对于由发射机通信的模拟电流调制电流环路上的电流少量。 这产生电容器中的电压脉冲，其与所选择的电压相比较，并被放大以形成用于与计算机或手持终端通信的大脉冲。

公开(公告)号：US4656353A

公开(公告)日：1987-04-07

申请号：US820769

申请日：1986-01-21

申请人： William L. Thompson

发明人： William L. Thompson

IPC分类号： G01F1/32 ,  G02B6/00 ,  G01D5/34

CPC分类号： G01F1/329

摘要： A fiber optic readout from an optic fiber which receives light from a driven LED and conveys it to a light detector, is processed by a preamp and sample and hold arrangement to produce an output of 4-20 mA. This output is applied to a conventional two-wire 4-20 mA line. Power is conserved by using a preamp in a variable pulse rate mode of operation.

摘要翻译： 从光纤接收来自驱动LED并将其传送到光检测器的光纤的光纤读出装置由前置放大器和采样保持装置进行处理以产生4-20mA的输出。 该输出适用于传统的双线4-20 mA线路。 通过在可变脉冲运行模式下使用前置放大器来节省功率。

公开(公告)号：US4509041A

公开(公告)日：1985-04-02

申请号：US360861

申请日：1982-03-22

申请人： Marion A. Keyes ,  William L. Thompson

发明人： Marion A. Keyes ,  William L. Thompson

IPC分类号： F23N5/08 ,  G08B17/12 ,  G08B21/00

CPC分类号： F23N5/082 ,  G08B17/12 ,  F23N2029/10

摘要： A device and method is disclosed which determines the presence and absence of a burner flame by injecting a pressure modulated signal into the burner which modulates a flame at a selected frequency. Light emitted from the flame is modulated at the same frequency. An optical sensor is provided for sensing the light amplitude modulation frequency and connected to a correlator circuit for correlating the light amplitude modulation signal with the pressure modulation signal. If the signals correlate, a flame is assumed to be present and a flame on signal generated. The pressure modulation signal can be discontinued periodically. If a corresponding discontinuation of the light amplitude modulation signal is sensed this is indicative of the continued presence of the flame whereas a continuation of the light amplitude modulation signal indicates a flame out condition.

摘要翻译： 公开了一种通过将压力调制信号注入到以选定频率调制火焰的燃烧器中来确定燃烧器火焰的存在和不存在的装置和方法。 从火焰发射的光以相同的频率被调制。 提供了一种用于感测光振幅调制频率并连接到相关器电路以便将光调制信号与压力调制信号相关联的光学传感器。 如果信号相关，则假定存在火焰并产生火焰信号。 可以周期性地停止压力调制信号。 如果感测到光调制信号的相应中断，则这表示火焰的持续存在，而光振幅调制信号的延续表示熄灭状态。

公开(公告)号：US4463612A

公开(公告)日：1984-08-07

申请号：US329500

申请日：1981-12-10

申请人： William L. Thompson

发明人： William L. Thompson

IPC分类号： G01F1/32 ,  G01P5/01

CPC分类号： G01F1/329

摘要： A circuit for processing the vortex shedding frequency signal of a vortex shedding flowmeter comprises a phase detector, switch and low pass filter connected in series. The phase detector receives the vortex shedding frequency and applies it over the normally closed switch to the low pass filter which produces an analog signal corresponding to the frequency of the vortex shedding frequency signal. A voltage controlled oscillator is connected between an output of the low pass filter and an input of the phase detector for tracking the vortex shedding frequency and producing a tracking frequency signal which is maintained when the vortex shedding frequency signal disappears. A range or gain code circuit portion is connected for establishing a set time period during which the frequency signal is accumulated in a counter. The accumulated signal from the counter is utilized as a digital signal corresponding to the vortex shedding frequency signal.

摘要翻译： 用于处理涡流脱水流量计的涡流脱落频率信号的电路包括串联连接的相位检测器，开关和低通滤波器。 相位检测器接收涡流脱落频率，并将其通过常闭开关施加到低通滤波器，该低通滤波器产生对应于涡流脱落频率信号的频率的模拟信号。 压控振荡器连接在低通滤波器的输出端和相位检测器的输入端之间，用于跟踪涡流脱落频率，并产生当涡流脱落频率信号消失时维持的跟踪频率信号。 连接范围或增益代码电路部分，以建立频率信号在计数器中累积的设定时间段。 来自计数器的累积信号被用作对应于涡流脱落频率信号的数字信号。

公开(公告)号：US4241303A

公开(公告)日：1980-12-23

申请号：US4012

申请日：1979-01-17

申请人： William L. Thompson

发明人： William L. Thompson

IPC分类号： G01D3/02 ,  G01K7/14 ,  G01K7/25 ,  G01R15/00 ,  G01K7/10 ,  G01R15/10

CPC分类号： G01K7/14 ,  G01K7/25 ,  G01R15/005

摘要： A voltage linearization circuit for use with a resistance thermometer device or a thermocouple to produce a nearly linear output signal from a non-linear input signal. The circuit produces a voltage proportional to the square of the input voltage through the use of operational amplifiers and field-effect transistors connected in voltage dividing arrangements, and combines this second order voltage, or a reduced magnitude thereof, with the original input voltage to produce a nearly linear output signal.

摘要翻译： 一种与电阻温度计装置或热电偶一起使用以从非线性输入信号产生近似线性输出信号的电压线性化电路。 该电路通过使用连接在分压装置中的运算放大器和场效应晶体管产生与输入电压平方成比例的电压，并将该二阶电压或其减小的幅度与原始输入电压组合以产生 近似线性的输出信号。

公开(公告)号：US6046806A

公开(公告)日：2000-04-04

申请号：US47389

申请日：1998-03-25

申请人： William L. Thompson

发明人： William L. Thompson

IPC分类号： G01N21/05 ,  G01N21/01 ,  G01N1/10

CPC分类号： C12M41/36 ,  C12M23/42 ,  C12M29/10 ,  G01N21/05 ,  G01N2021/0346

摘要： Provided is a flow-through cell culture chamber having an internal chamberor containing cultured cells defined in part by transparent cover slips. Fastening and retainer structures are utilized to urge the cover slips towards one another and seal the internal chamber. The retainer structures are constructed and arranged such that when they are drawn towards one another and contact opposing surfaces of the cell culture chamber body, sufficient pressure is provided against the cover slips to seal the internal chamber.

摘要翻译： 提供了一种流通细胞培养室，其具有用于包含部分由透明盖滑盖限定的培养细胞的内室。 紧固和保持架结构用于将盖滑动朝向彼此推动并密封内室。 保持器结构被构造和布置成使得当它们被相互拉紧并接触细胞培养室主体的相对表面时，向盖板提供足够的压力以密封内部腔室。