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1. 发明公开

EP0335040A2 Variable gas volume flow measuring and control methods and apparatus 失效
标题翻译：装置和用于测量和调节容积可变的气体流的方法。
公开(公告)号：EP0335040A2
公开(公告)日：1989-10-04
申请号：EP88311058.7
申请日：1988-11-23
申请人： Ginn, LeRoy Dry , Ginn, LeRoyce Sloe
发明人： Ginn, LeRoy Dry , Schneider, Karen B. , Ginn, LeRoyce Sloe
IPC分类号： G01F1/36 , G01F1/24
CPC分类号： G01F1/22 , F24F2110/30 , G01F1/363 , G05D7/0635 , Y10T137/0357 , Y10T137/776 , Y10T137/7761 , Y10T137/86389
摘要： Methods and apparatus are disclosed for measuring gas volume flow rate through a duct (23) including a variable area orifice (24), e.g. in an air conditioning system. Respective sensors (S1, S2) reference the total pressure upstream of the orifice (24) to the static pressure downstream, and a first signal representing the differential pressure is fed, with a second signal representing the open orifice area, to a control computer (31) which calculates the gas flow rate through the duct (23) on the basis of the signal values and information in a stored gas flow volume database. The database is constructed from values of the first and second signals generated at known volumes of air, preferably as a single, non-dimensional curve for all amplitudes of the differential pressure signal. The open orifice area may be controlled in dependence on conditions e.g. temperature, pollution, detected by a sensor (37) downstream of the orifice (24).
摘要翻译：的方法和装置光盘为游离缺失通过管道（23）包括可变区孔口（24），E. G.测量气体体积流量在空调系统的。各个传感器（S1，S2），作为参考的总压力的孔口（24）到下游侧的静压力的上游，和表示微分压力的第一信号被馈送，与表示开口面积的第二信号涉及一种控制计算机（31）通过在所存储的气体流量数据库中的信号值和信息的基础上，所述管道（23）计算的气体流率。该数据库是从空气的已知体积中产生的第一和第二信号的值构建，优选作为用于差压信号的所有振幅的单一的，非维曲线。开口面积可以在对条件的依赖性来控制E.G. 温度，污染，由传感器（37）的孔口（24）的下游侧检测。

2. 发明公开

EP0335040A3 Variable gas volume flow measuring and control methods and apparatus 失效
标题翻译：可变气体流量测量和控制方法和装置
公开(公告)号：EP0335040A3
公开(公告)日：1990-08-01
申请号：EP88311058.7
申请日：1988-11-23
申请人： Ginn, LeRoy Dry , Ginn, LeRoyce Sloe
发明人： Ginn, LeRoy Dry , Schneider, Karen B. , Ginn, LeRoyce Sloe
IPC分类号： G01F1/36 , G01F1/24
CPC分类号： G01F1/22 , F24F2110/30 , G01F1/363 , G05D7/0635 , Y10T137/0357 , Y10T137/776 , Y10T137/7761 , Y10T137/86389
摘要： Methods and apparatus are disclosed for measuring gas volume flow rate through a duct (23) including a variable area orifice (24), e.g. in an air conditioning system. Respective sensors (S1, S2) reference the total pressure upstream of the orifice (24) to the static pressure downstream, and a first signal representing the differential pressure is fed, with a second signal representing the open orifice area, to a control computer (31) which calculates the gas flow rate through the duct (23) on the basis of the signal values and information in a stored gas flow volume database. The database is constructed from values of the first and second signals generated at known volumes of air, preferably as a single, non-dimensional curve for all amplitudes of the differential pressure signal. The open orifice area may be controlled in dependence on conditions e.g. temperature, pollution, detected by a sensor (37) downstream of the orifice (24).

3. 发明授权

EP0335040B1 Variable gas volume flow measuring and control methods and apparatus 失效
标题翻译：装置和用于测量和调节容积可变的气体流的方法。
公开(公告)号：EP0335040B1
公开(公告)日：1994-10-26
申请号：EP88311058.7
申请日：1988-11-23
申请人： Ginn, LeRoy Dry , Ginn, LeRoyce Sloe
发明人： Ginn, LeRoy Dry , Schneider, Karen B. , Ginn, LeRoyce Sloe
IPC分类号： G01F1/36 , G01F1/24
CPC分类号： G01F1/22 , F24F2110/30 , G01F1/363 , G05D7/0635 , Y10T137/0357 , Y10T137/776 , Y10T137/7761 , Y10T137/86389
摘要： Methods and apparatus are disclosed for measuring gas volume flow rate through a duct (23) including a variable area orifice (24), e.g. in an air conditioning system. Respective sensors (S1, S2) reference the total pressure upstream of the orifice (24) to the static pressure downstream, and a first signal representing the differential pressure is fed, with a second signal representing the open orifice area, to a control computer (31) which calculates the gas flow rate through the duct (23) on the basis of the signal values and information in a stored gas flow volume database. The database is constructed from values of the first and second signals generated at known volumes of air, preferably as a single, non-dimensional curve for all amplitudes of the differential pressure signal. The open orifice area may be controlled in dependence on conditions e.g. temperature, pollution, detected by a sensor (37) downstream of the orifice (24).

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