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1. 发明授权

US06517237B1 Measuring energy consumption 有权
标题翻译：测量能耗
公开(公告)号：US06517237B1
公开(公告)日：2003-02-11
申请号：US09784441
申请日：2001-02-23
申请人： Paul Steven Hammond , Robert Richard Thurston , Barry Leonard Price
发明人： Paul Steven Hammond , Robert Richard Thurston , Barry Leonard Price
IPC分类号： G01K1700
CPC分类号： G01F1/74 , G01F1/66 , G01F3/22 , G01N29/024 , G01N29/222 , G01N29/223 , G01N29/4472 , G01N2291/0212 , G01N2291/0215 , G01N2291/02836 , G01N2291/02881
摘要： An energy meter which measures a volume of gas supplied, which measures a calorific value of the gas supplied, and which calculates an energy value corresponding to the measured volume of gas supplied and the calorific value. The structure to measure the volume of the gas supplied and to calculate the energy value may be provided in a single unit. The structure to measure the calorific value of the gas supplied preferably includes a structure to measure the speed of sound in the gas and further preferably measures a first thermal conductivity of the gas at a first temperature and measures a second thermal conductivity of the gas at a second temperature which differs from the first temperature, and is arranged to produce the calorific value of the gas corresponding to the measured speed of sound in the first and second thermal conductivities.
摘要翻译：一种测量供应的气体体积的能量计，其测量供应的气体的热值，并且计算与所供应的气体的测量体积和热值相对应的能量值。用于测量供应气体体积和计算能量值的结构可以以单个单元提供。用于测量供应气体的发热量的结构优选地包括测量气体中的声速的结构，并进一步优选地测量在第一温度下气体的第一热导率，并测量气体在第一温度下的第二热导率第二温度与第一温度不同，并且被布置成产生与第一和第二热导率中测得的声速相对应的气体的热值。

2. 发明授权

US06481288B1 Measuring the speed of sound of a gas 失效
标题翻译：测量气体的声速
公开(公告)号：US06481288B1
公开(公告)日：2002-11-19
申请号：US09720030
申请日：2001-02-15
申请人： Francis Alan Humphrey , David Byrne , Barry Leonard Price
发明人： Francis Alan Humphrey , David Byrne , Barry Leonard Price
IPC分类号： G01N2912
CPC分类号： G01H5/00
摘要： A method and apparatus for determining the speed of sound in a gas. An acoustic transmitter is arranged to apply an acoustic signal to the interior of a resonator and an acoustic receiver is arranged to detect the amplitude of the acoustic signal in the interior of the resonator. A control means determines the speed of sound of gas within the resonator from the frequency of a detected non-radial resonant mode.
摘要翻译：一种用于确定气体中的声速的方法和装置。声发射器布置成将声信号施加到谐振器的内部，并且声接收器布置成检测谐振器内部的声信号的振幅。控制装置从检测到的非径向共振模式的频率确定谐振器内的气体的声速。

3. 发明授权

US5902043A Apparatus and method for measuring heat power consumed in or extracted from a region 失效
标题翻译：用于测量或从区域中提取的热功率的装置和方法
公开(公告)号：US5902043A
公开(公告)日：1999-05-11
申请号：US666476
申请日：1996-07-02
申请人： Barry Leonard Price , Graham Richard Roberts , David Richard Wightman
发明人： Barry Leonard Price , Graham Richard Roberts , David Richard Wightman
IPC分类号： G01K17/08 , G01K19/00
CPC分类号： G01K17/08
摘要： A heat meter for measuring the amount of heat consumed in a region. A heat exchanger is supplied with heated fluid through an inlet pipe which carries temperature sensors for sending signals to a control. The control also receives signals from a temperature sensor in an outlet pipe carrying fluid away from the region. A low power electric heater is mounted between the sensors to add a known amount of heat to the fluid. The control calculates the heat power consumed in the region based on the temperature difference across the regions and the temperature difference across the region and the temperature difference across the heater.
摘要翻译： PCT No.PCT / GB95 / 02595 371日期：1996年7月2日 102（e）日期1996年7月2日PCT提交1995年11月3日PCT公布。出版物WO96 / 日期1996年5月17日用于测量区域中消耗的热量的热量表。热交换器通过入口管供应加热流体，入口管承载用于向控制器发送信号的温度传感器。该控制器还接收来自承载流体远离该区域的出口管中的温度传感器的信号。传感器之间安装有低功率电加热器，以向流体添加已知量的热量。该控制基于区域上的温度差和区域两端的温度差以及加热器两端的温差来计算区域中消耗的热能。

4. 发明授权

US06318180B1 Method and apparatus for determining a frequency at which a resonator resonates 有权
标题翻译：用于确定谐振器谐振频率的方法和装置
公开(公告)号：US06318180B1
公开(公告)日：2001-11-20
申请号：US09720031
申请日：2001-02-15
申请人： Francis Alan Humphrey , David Byrne , Barry Leonard Price
发明人： Francis Alan Humphrey , David Byrne , Barry Leonard Price
IPC分类号： G01N2912
CPC分类号： G01H13/00
摘要： Determininig a frequency at which a resonator resonates comprising: driving an acoustic transmitter for applying an acoustic signal to the interior of a resonator by scanning through a first range of frequencies in substantially equidistant steps of a first size; detecting a signal from an acoustic receiver arranged to detect the amplitude of an acoustic signal within the resonator produced by driving the acoustic transmitter over the first range of frequencies; determining a frequency at which a maximum occurs in the detected signal for the first range of frequencies; driving the acoustic transmitter by scanning through a second range of frequencies containing the determined frequency from the first range of frequencies, the second range being smaller than the first range, and scanning through the second range of frequencies in substantially equidistant steps of a second size which is smaller than the steps of the first size; detecting a signal from the acoustic receiver produced by driving the acoustic transmitter over the second range of frequencies and determining a frequency at which a maximum occurs in the detected signal for the second range of frequencies.
摘要翻译：确定谐振器谐振的频率包括：通过以基本上等距离的第一尺寸的步骤扫描第一频率范围来驱动声学发射器，用于将声学信号施加到谐振器的内部; 检测来自声接收器的信号，所述声接收器被布置成检测通过在所述第一频率范围上驱动所述声发射器产生的所述谐振器内的声信号的振幅; 确定针对所述第一频率范围的检测信号中发生最大值的频率; 通过从第一频率范围扫描包含所确定的频率的第二频率范围来驱动声发射机，第二范围小于第一范围，并且以第二大小基本等距的步骤扫描第二频率范围，小于第一尺寸的步骤; 检测通过在第二频率范围上驱动声发射机产生的声接收机的信号，并确定在第二频率范围内在检测信号中出现最大值的频率。

5. 发明授权

US06442996B1 Method and apparatus for measuring the calorific value of a gas 有权
标题翻译：用于测量气体的热值的方法和装置
公开(公告)号：US06442996B1
公开(公告)日：2002-09-03
申请号：US09581558
申请日：2000-08-29
申请人： Robert Richard Thurston , Paul Stephen Hammond , Barry Leonard Price
发明人： Robert Richard Thurston , Paul Stephen Hammond , Barry Leonard Price
IPC分类号： G01N2902
CPC分类号： G01N29/326 , G01N25/20 , G01N29/024 , G01N33/225 , G01N2291/021 , G01N2291/02881 , G05D21/02
摘要： A method and apparatus for measuring the calorific value of a gas. The apparatus includes a chamber to which a gas in question, for example natural gas, is supplied through an inlet and leaves through an outlet. The speed of sound SoS at ambient temperature is measured using any suitable method such as electronic control and a calculating device and an ultra-sound emitter and an ultra-sound receiver. The ambient temperatures Ta, is observed by a temperature sensor, and a thermal conductivity sensor measures the thermal conductivity of the gas at two different temperatures above the ambient temperature. One value ThCH, of the thermal conductivity is measured at 70° C. above ambient and the other value ThCL of the thermal conductivity is measured at 50° C. above ambient. The control calculates the calorific value CV of the gas according to the formula: CV=a·ThCH+b·ThCL+C·SoS+d·Ta+e·Ta2 +f, where a, b, c, d, e and f are constants.
摘要翻译：一种用于测量气体的热值的方法和装置。该装置包括一个室，通过入口向所述室供应所述气体，例如天然气，并通过出口离开。使用诸如电子控制和计算装置以及超声发射器和超声波接收器之类的任何合适的方法测量环境温度下的声速SoS。通过温度传感器观察环境温度Ta，并且热导率传感器测量在高于环境温度的两个不同温度下的气体的热导率。在高于环境温度的70℃下测量热导率的一个值ThCH，并且在高于环境温度的50℃下测量热导率的另一个值ThCL。控制根据下式计算气体的热值CV：其中a，b，c，d，e和f是常数。

6. 发明授权

US06573766B1 Synthesizing a sine wave 失效
标题翻译：合成正弦波
公开(公告)号：US06573766B1
公开(公告)日：2003-06-03
申请号：US09720025
申请日：2001-02-15
申请人： Francis Alan Humphrey , David Byrne , Barry Leonard Price
发明人： Francis Alan Humphrey , David Byrne , Barry Leonard Price
IPC分类号： H03K494
CPC分类号： H03B28/00 , H03B21/00 , H03B23/00
摘要： A method and apparatus for synthesizing an approximation to a sine wave comprising generating a number of pulse width modulated signals, each having a predetermine duty cycle and being the same frequency as each other, from a clock signal. The generated pulse width modulated signals are then combined to produce an approximation to a sine wave having the same frequency as the pulse width modulated signals. The clock signal is provided by an oscillator arranged to produce clock signals over a continuous range of frequencies so that approximations to a sine wave can be produced over a continuous range of frequencies.
摘要翻译：一种用于合成对正弦波的近似的方法和装置，包括从时钟信号产生各自具有彼此的预定占空比并且彼此相同的频率的多个脉宽调制信号。产生的脉冲宽度调制信号然后被组合以产生与脉冲宽度调制信号具有相同频率的正弦波的近似。时钟信号由布置成在连续的频率范围上产生时钟信号的振荡器提供，使得可以在连续的频率范围上产生对正弦波的近似。

7. 发明授权

US5936156A Liquid metering 失效
标题翻译：液体计量
公开(公告)号：US5936156A
公开(公告)日：1999-08-10
申请号：US832562
申请日：1997-04-02
申请人： Graham Richard Roberts , Andrew Jonathan Cole , Barry Leonard Price
发明人： Graham Richard Roberts , Andrew Jonathan Cole , Barry Leonard Price
IPC分类号： G01F1/696 , G01F1/68 , G01F1/684
CPC分类号： G01F1/684
摘要： A meter to measure the volumetric flow rate of a liquid, for example water, is formed with a pipe forming a liquid flow path containing a low power electrical heater. A first temperature sensor measures the temperature T of the liquid adjacent to an upstream end of the heater and a second temperature sensor measures the temperature T.sub.2 of the liquid adjacent to a downstream end of the heater. The heater adds heat power of a value P to the liquid. A control arrangement comprising a computer means calculates the flow rate Q using the expression ##EQU1## where ST.sub.1 and DT.sub.1 are respectively the specific heat capacity of the liquid and the density of the liquid at the temperature T.sub.1 measured by the first sensor.
摘要翻译：用形成含有低功率电加热器的液体流路的管形成用于测量液体（例如水）的体积流量的仪表。第一温度传感器测量与加热器的上游端相邻的液体的温度T，第二温度传感器测量与加热器的下游端相邻的液体的温度T2。加热器将值P的热功率加到液体中。包括计算机装置的控制装置使用其中ST1和DT1分别是液体的比热容和由第一传感器测量的温度T1下的液体的密度的表达式来计算流量Q。

8. 发明授权

US06634214B1 Method and apparatus for measuring the relative density of a gas 有权
标题翻译：测量气体相对密度的方法和装置
公开(公告)号：US06634214B1
公开(公告)日：2003-10-21
申请号：US09581559
申请日：2000-08-29
申请人： Robert Richard Thurston , Paul Stephen Hammond , Barry Leonard Price
发明人： Robert Richard Thurston , Paul Stephen Hammond , Barry Leonard Price
IPC分类号： G01N900
CPC分类号： G01N9/24 , G01N2291/02881 , G05D21/02
摘要： A method and apparatus for measuring the relative density of a gas. The apparatus includes a chamber to which a gas in question, for example natural gas, is supplied through an inlet and leaves through an outlet. The speed of sound SoS at ambient temperature is measured using any suitable method such as electronic control and a calculating device and an ultra-sound emitter and an ultra-sound receiver. The ambient temperature Ta is observed by a temperature sensor, and a thermal conductivity sensor measures the thermal conductivity of the gas at two different temperatures above the ambient temperature. One value ThCH of the thermal conductivity is measured at 70° C. above ambient and the other value ThCL of the thermal conductivity is measured at 50° C. above ambient. The control calculates the relative density RD of the gas according to the formula RD=g·ThCH+h·ThCL+i·SoS+j·Ta+k·.Ta2+l where (g, h, i, j, k and l) are constants.
摘要翻译：一种用于测量气体的相对密度的方法和装置。该装置包括一个室，通过入口向所述室供应所述气体，例如天然气，并通过出口离开。使用诸如电子控制和计算装置以及超声发射器和超声波接收器之类的任何合适的方法测量环境温度下的声速SoS的速度。通过温度传感器观察环境温度Ta，并且热导率传感器测量在高于环境温度的两个不同温度下的气体的热导率。在高于环境温度的70℃下测量热导率的一个值ThCH，并且在高于环境温度的50℃下测量热导率的另一个值ThCL。控制根据公式计算气体的相对密度RD RD = g.ThCH + h.ThCL + i.SoS + j.Ta + k..Ta2 + l其中（g，h，i，j ，k和l）是常数。

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