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公开(公告)号:US06327890B1
公开(公告)日:2001-12-11
申请号:US09377191
申请日:1999-08-19
IPC分类号: A61B1000
CPC分类号: G01N25/68 , G01N29/022 , G01N29/223 , G01N29/326 , G01N2291/011 , G01N2291/012 , G01N2291/015 , G01N2291/0253 , G01N2291/0256 , G01N2291/02818 , G01N2291/02845 , G01N2291/02881 , G01N2291/0423 , G01N2291/0426
摘要: A improvement for high precision ultrasonic chilled surface dew point hygrometry for measuring the density of condensation and the temperature at the same location on the surface of the sensor. The improvement for high precision ultrasonic chilled surface dew point hygrometry includes a piezoelectric substrate, and further having a conventional thermoelectric cooler connected thereto and a plurality of spaced heat sinks conventionally depending from the surface. Conventional acoustic devices are used to propagate surface acoustic waves and surface skimming bulk waves across the surface of the sensor. A series of the surface acoustic waves is used to measure the density of the condensation at a particular location on the surface of the sensor. A conventional wave detection device such as a phase detector detects the waves as to their velocity and amplitude and passes this information onto a computer microprocessor which is programmed to measure and control the density of the condensate located along the path of the waves across the surface of the sensor. A series of surface skimming bulk waves are preferably propagated across the surface of the sensor at generally an angle to the surface acoustic waves so as to measure temperature of the surface of the sensor without interfering with the surface acoustic waves. Other temperature measuring techniques can also be used, one of which includes using a conventional integrated resistive temperature device disposed in a nonobvious configuration so as not to interfere with the surface acoustic waves on the surface of the sensor.
摘要翻译: 用于测量冷凝密度和传感器表面相同位置温度的高精度超声波冷冻表面露点湿度计的改进。 高精度超声波冷冻表面露点湿度计的改进包括压电基片,并且还具有连接到其上的常规热电冷却器和通常与表面相关的多个间隔开的散热器。 常规的声学装置用于传播表面声波并且在整个传感器的表面上表面掠过体波。 一系列表面声波用于测量传感器表面上特定位置处的冷凝密度。 诸如相位检测器的常规波检测装置检测它们的速度和幅度的波,并将该信息传递到计算机微处理器上,计算机微处理器被编程为测量和控制沿着波浪的路径的冷凝物的密度 传感器。 一系列表面扫描体波优选以与声表面波大致成一定角度的方式传播到传感器的表面上,以便测量传感器表面的温度而不干扰表面声波。 还可以使用其它温度测量技术,其中之一包括使用以非显而易见的结构设置的常规集成电阻温度器件,以便不干扰传感器表面上的表面声波。
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公开(公告)号:US07513940B2
公开(公告)日:2009-04-07
申请号:US11223805
申请日:2005-09-09
IPC分类号: G01N1/22
CPC分类号: G01N1/2214 , G01N1/2211 , G01N2015/0088
摘要: A sampling system includes a collection module including a gas handler, and a flow controller in communication with the gas handler of the collection module. The flow controller controls the gas handler to move a selected volume of gas through the collection module.
摘要翻译: 采样系统包括收集模块,其包括气体处理器和与收集模块的气体处理器通信的流量控制器。 流量控制器控制气体处理器以将选定体积的气体移动通过收集模块。
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公开(公告)号:US20090193911A1
公开(公告)日:2009-08-06
申请号:US12392884
申请日:2009-02-25
IPC分类号: G01N1/22
CPC分类号: G01N1/2214 , G01N1/2211 , G01N2015/0088
摘要: A sampling system includes a collection module including a gas handler, and a flow controller in communication with the gas handler of the collection module. The flow controller controls the gas handler to move a selected volume of gas through the collection module.
摘要翻译: 采样系统包括收集模块,其包括气体处理器和与收集模块的气体处理器通信的流量控制器。 流量控制器控制气体处理器以将选定体积的气体移动通过收集模块。
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公开(公告)号:US08327720B2
公开(公告)日:2012-12-11
申请号:US13444771
申请日:2012-04-11
IPC分类号: G01N1/22
CPC分类号: G01N1/2214 , G01N1/2211 , G01N2015/0088
摘要: A sampling system includes a collection module including a gas handler, and a flow controller in communication with the gas handler of the collection module. The flow controller controls the gas handler to move a selected volume of gas through the collection module.
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公开(公告)号:US20120227581A1
公开(公告)日:2012-09-13
申请号:US13444771
申请日:2012-04-11
IPC分类号: B01D53/14
CPC分类号: G01N1/2214 , G01N1/2211 , G01N2015/0088
摘要: A sampling system includes a collection module including a gas handler, and a flow controller in communication with the gas handler of the collection module. The flow controller controls the gas handler to move a selected volume of gas through the collection module.
摘要翻译: 采样系统包括收集模块,其包括气体处理器和与收集模块的气体处理器通信的流量控制器。 流量控制器控制气体处理器以将选定体积的气体移动通过收集模块。
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公开(公告)号:US08171803B2
公开(公告)日:2012-05-08
申请号:US12392884
申请日:2009-02-25
IPC分类号: G01N1/22
CPC分类号: G01N1/2214 , G01N1/2211 , G01N2015/0088
摘要: A sampling system includes a collection module including a gas handler, and a flow controller in communication with the gas handler of the collection module. The flow controller controls the gas handler to move a selected volume of gas through the collection module.
摘要翻译: 采样系统包括收集模块,其包括气体处理器和与收集模块的气体处理器通信的流量控制器。 流量控制器控制气体处理器以将选定体积的气体移动通过收集模块。
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