公开(公告)号：US4102195A

公开(公告)日：1978-07-25

申请号：US766819

申请日：1977-02-08

申请人： John H. Thompson ,  Stephen Kowalyshyn ,  Arthur Nelkin

发明人： John H. Thompson ,  Stephen Kowalyshyn ,  Arthur Nelkin

IPC分类号： G01H13/00 ,  G01K11/22 ,  G01K11/26

CPC分类号： G01K11/26 ,  G01N2291/02827 ,  G01N2291/02881

摘要： A temperature sensor arrangement which utilizes high Q temperature sensitive resonators coupled to an acoustic waveguide. Several resonators, each resonant at a different frequency, are positioned at various locations in a system to be monitored and an acoustic signal is sent down the waveguide. Reflected acoustic energy is examined for the presence of the various resonant frequencies. Since the resonant frequency of each resonator is temperature sensitive, the detected signals provide an indication of temperature at the respective various locations.

摘要翻译： 利用耦合到声波导的高Q温度敏感谐振器的温度传感器装置。 以不同频率共振的几个谐振器被定位在要监视的系统中的各个位置处，并且声波信号沿着波导发送。 检查反射的声能是否存在各种谐振频率。 由于每个谐振器的谐振频率是温度敏感的，因此检测到的信号提供各个位置处的温度指示。

公开(公告)号：US4114063A

公开(公告)日：1978-09-12

申请号：US791434

申请日：1977-04-27

申请人： Arthur Nelkin ,  Dale D. Skinner ,  Donald G. Wilson ,  Harold D. Palmer

发明人： Arthur Nelkin ,  Dale D. Skinner ,  Donald G. Wilson ,  Harold D. Palmer

IPC分类号： G01C13/00 ,  G01P13/00 ,  H01L41/10

CPC分类号： G01C13/00 ,  G01P13/0006

摘要： A sand transport detector which detects the discrete impingements of sand particles on an elongated probe member inserted into the sand. A piezoelectric transducer element is cemented to the probe and produces an output signal when impingement occurs. With an electronic circuit coupled to the transducer, an indication of sand transport may be obtained.