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1. 发明公开

US20230358619A1 DEVICE FOR ACOUSTIC TEMPERATURE MEASUREMENT 审中-公开
公开(公告)号：US20230358619A1
公开(公告)日：2023-11-09
申请号：US17786029
申请日：2020-12-11
申请人： KIMA PROCESS CONTROL GMBH
发明人： Peter KALKERT
IPC分类号： G01K11/24 , G01K13/024 , G01N29/024 , G01N29/22 , G01N29/24 , G01N29/32 , G01N29/44 , G01N29/34
CPC分类号： G01K11/24 , G01K13/024 , G01N29/024 , G01N29/221 , G01N29/2437 , G01N29/326 , G01N29/223 , G01N29/4436 , G01N29/343 , G01N2291/02881 , G01N2291/011
摘要： The invention relates to a device (1) at least for an acoustic temperature measurement in a gaseous medium (M) passing a medium channel (110) by means of runtime measurement of an acoustic pulse (AP) running through the gaseous medium (M) from at least a first transmitter arrangement (TA1) to at least a first receiver arrangement (RA1), the first transmitter arrangement (TA1) comprising a sound pulse generator (2) for the generating the acoustic pulse (AP), which is connected by a first acoustic channel (3) to a transmitter (4) which transmits the acoustic pulse (AP) into the medium (M), the first acoustic channel (3) being of acoustically dispersive design, and, the first receiver arrangement (RA1) comprising a receiver (5) for receiving the acoustic pulse (AP) after it has passed through the medium (M) and for transmitting it via a second acoustic channel (6) to a first microphone (7), preferably a piezoelectric microphone (7), for detecting the acoustic pulse (AP), the first acoustic channel (3) being curved towards the sound pulse generator (2) in such a way that the radiant heat of the medium (M) on the sound pulse generator (2) is at least greatly reduced, wherein at least the transmitter (4) comprises in the first acoustic channel (3) on its side (41) facing the medium (M) to be measured interfering element (42) which reflects a part (RI) of the acoustic pulse (AP) back into the first acoustic channel (3) of the first transmitter arrangement (TA1), in which a second microphone (8), preferably arranged on the side (43) of the transmitter (4) feeing the sound pulse generator (2), is arranged for detecting the back-reflected part (RI) of the acoustic pulse (AP), the device (1) further comprising a pulse discriminator (9) designed to determine the arrival times (AT) of the recorded acoustic pulses (AP) in a suitable way and to transmit them to an evaluation unit (10) designed to determine the temperature of the medium (M) from the runtime of the acoustic pulse (AP) from the transmitter (4) to the receiver (5), taking into account the arrival times (AT) determined by the pulse discriminator and the acoustic pulses (RI, AI) detected by first and second microphones (7,8).

2. 发明申请

US20190111483A1 SYSTEMS AND METHODS FOR MONITORING TEMPERATURE USING ACOUSTIC WAVES DURING PROCESSING OF A MATERIAL 审中-公开
公开(公告)号：US20190111483A1
公开(公告)日：2019-04-18
申请号：US16206940
申请日：2018-11-30
申请人： The Aerospace Corporation
发明人： Henry Helvajian , Anthony J. Manzo
IPC分类号： B22F3/105 , B29C64/393 , G01K11/24 , G06F17/50 , B29C64/153
CPC分类号： B22F3/1055 , B22F2003/1057 , B22F2999/00 , B29C64/153 , B29C64/393 , B33Y50/02 , B33Y80/00 , G01K11/24 , G06F17/50 , Y02P10/295 , B22F2203/03
摘要： Under one aspect, a method of processing a material includes heating a region of the material with a first energy source; exciting an acoustic wave in the material; and transmitting the acoustic wave through the heated region, the heated region changing at least one property of the acoustic wave. The method also can include detecting the change in at least one property of the acoustic wave; characterizing a temperature of the material in the heated region based on the detected change in at least one property of the acoustic wave; and comparing the characterized temperature of the material in the heated region to a threshold. The method further can include, based on the characterized temperature of the material in the heated region being less than the threshold or being above the threshold for an insufficient amount of time, modifying a property of the heated region with a second energy source.

3. 发明申请

US20180273374A1 INFERRING AMBIENT ATMOSPHERIC TEMPERATURE 审中-公开
公开(公告)号：US20180273374A1
公开(公告)日：2018-09-27
申请号：US15650812
申请日：2017-07-14
申请人： InvenSense, Inc.
发明人： William Kerry Keal
IPC分类号： B81C1/00 , G01C19/5719 , G01P1/02 , G01P15/08 , G01P15/125 , G01P15/18 , H01H59/00 , H03H9/10
CPC分类号： B81C1/0023 , B81B2201/0235 , B81B2201/042 , B81C2201/019 , B81C2203/0118 , G01C19/5719 , G01K11/24 , G01K13/02 , G01P1/023 , G01P15/0802 , G01P15/125 , G01P15/18 , G01P2015/0831 , H01H59/0009 , H03H9/1057
摘要： In a method of inferring ambient atmospheric temperature, an acoustic signal is emitted from a speaker. A first sample of the acoustic signal is captured with a first microphone spaced a first distance from the speaker. A second sample of the acoustic signal is captured with a second microphone spaced a second distance from the speaker. The second distance is greater than the first distance, and a difference between the first distance and the second distance is a known third distance. A time delay in the acoustic signal is determined between the first sample and the second sample. An ambient temperature of the atmosphere through which the acoustic signal traveled is inferred based on a relationship between the time delay and temperature for the acoustic signal over the third distance.

4. 发明申请

US20180113030A1 A NOVEL ULTRASONIC WAVEGUIDE TECHNIQUE FOR DISTRIBUTED SENSING AND MEASUREMENTS OF PHYSICAL AND CHEMICAL PROPERTIES OF SURROUNDING MEDIA 审中-公开
公开(公告)号：US20180113030A1
公开(公告)日：2018-04-26
申请号：US15561823
申请日：2016-03-29
申请人： Indian Institute of Technology Madras
发明人： Krishnan Balasubramaniam , Suresh Periyannan
IPC分类号： G01K11/24 , G01K3/14
CPC分类号： G01K11/24 , G01K3/14 , G01K11/22 , G01K11/32
摘要： This invention relates to a waveguide with distributed sensors that support travelling ultrasonic wave modes to provide quantitative local distributed sensing of the physical and chemical properties of the medium surrounding the sensor locations and/or the material properties of the waveguide. The plurality of sensor is operably associated with plurality wave mode for probing and identifying plurality of properties simultaneously. The reflected waves are representative of local information about the surrounding media at that sensor location.

5. 发明申请

US20170089767A1 MULTI-FUNCTIONAL SENSOR SYSTEM FOR GAS TURBINE COMBUSTION MONITORING AND CONTROL 有权
公开(公告)号：US20170089767A1
公开(公告)日：2017-03-30
申请号：US15377184
申请日：2016-12-13
申请人： Siemens Energy, Inc.
发明人： Upul P. DeSilva
IPC分类号： G01K11/22 , G01K11/24 , G01M15/14 , F23R3/44
CPC分类号： G01K11/22 , F23N5/10 , F23N5/16 , F23N2023/00 , F23N2025/08 , F23N2041/20 , F23R3/44 , G01K11/24 , G01M15/14
摘要： Thermoacoustic sensors, such as dynamic pressure sensors, in the combustor measure vibratory responses of the combustor. An integrated monitoring and control system controller correlates sensor readings with combustion thermoacoustic properties in order to identify combustion anomalies by wavelet or Fourier analysis techniques; determine bulk temperature characteristics within the combustor with dominant mode frequency analysis techniques; and optionally determines absolute active path temperatures within the combustor with acoustic pyrometry transmission and time-of-flight analysis techniques. In some embodiments all of the monitoring functions are performed with a commonly shared array of thermoacoustic sensors that function as both combustion dynamics thermoacoustic vibration/wave receivers and acoustic transmitters. The monitored combustion properties are used for controlling gas turbine combustion.

6. 发明授权

US09453767B2 Active temperature monitoring in gas turbine combustors 有权
标题翻译：燃气轮机燃烧器主动温度监控
公开(公告)号：US09453767B2
公开(公告)日：2016-09-27
申请号：US14132001
申请日：2013-12-18
申请人： Siemens Energy, Inc.
发明人： Upul P. DeSilva
IPC分类号： G01M15/14 , G01K7/42 , G01F1/66 , G01K11/24 , F02C3/04 , F01D17/08 , G01K11/26 , G01K13/02
CPC分类号： G01K11/24 , F01D17/085 , F02C3/04 , F05D2260/80 , F05D2270/09 , F05D2270/303 , G01F1/667 , G01K7/42 , G01K11/26 , G01K13/02 , G01K2013/024 , G01M15/14
摘要： Acoustic pyrometry-based active temperature monitoring of gas turbine combustors, including industrial gas turbine (IGT) combustors is incorporated into the combustion monitoring and control system by addition of an acoustic transmitter or acoustic transceiver that transmits a sound wave in a line-of-sight with a plurality of thermoacoustic sensors, such as dynamic pressure sensors. Sound transmission time-of-flight is measured by the controller and correlated with path temperature along the line-of-sight. Path(s) of acoustic transmission serve as absolute temperature measurement that optionally is used for calibrating dominant mode passive bulk temperature measurement. In an integrated thermoacoustic pressure-based sensor and monitoring/control system embodiment, the controller correlates performance of an combustion thermoacoustic properties in order to identify combustion anomalies by wavelet or Fourier analysis techniques, determine bulk temperature characteristics within the combustor with dominant mode frequency analysis techniques and determines absolute active path temperatures within the combustor with acoustic transmission and time-of-flight analysis techniques.
摘要翻译：包括工业燃气轮机（IGT）燃烧器在内的燃气轮机燃烧器的基于高温测量的主动温度监测通过添加在视线中传输声波的声发射器或声收发器而被并入到燃烧监测和控制系统中具有多个热声传感器，例如动态压力传感器。声音传输的飞行时间由控制器测量，并与视线的路径温度相关。声学传播的路径用作绝对温度测量，可选地用于校准主模式被动体温度测量。在基于集成热声压力的传感器和监控/控制系统实施例中，控制器将燃烧热声特性的性能相关联，以通过小波或傅里叶分析技术识别燃烧异常，以主模式频率分析技术确定燃烧室内的体温特性并利用声学传播和飞行时间分析技术确定燃烧室内的绝对主动路径温度。

7. 发明申请

US20150078416A1 DIFFERENTIAL ACOUSTIC TIME OF FLIGHT MEASUREMENT OF TEMPERATURE OF SEMICONDUCTOR SUBSTRATES 有权
标题翻译：飞行器半导体衬底温度测量的差分声学时间
公开(公告)号：US20150078416A1
公开(公告)日：2015-03-19
申请号：US14490430
申请日：2014-09-18
申请人： TOKYO ELECTRON LIMITED
发明人： Jun PEI , Junwei BAO , Holger TUITJE , Ching-Ling MENG , Mihail D. MIHAYLOV
IPC分类号： G01K11/24 , H01L21/66
CPC分类号： G01K11/24 , H01L21/67248
摘要： Disclosed is a method and apparatus for measuring semiconductor substrate temperature using a differential acoustic time of flight measurement technique. The measurement is based on measuring the time of flight of acoustic (ultrasonic) waves across the substrate, and calculating a substrate temperature from the measured time of flight and the known temperature dependence of the speed of sound for the substrate material. The differential acoustic time of flight method eliminates most sources of interference and error, for example due to varying coupling between an ultrasonic transducer and the substrate. To further increase the accuracy of the differential acoustic time of flight measurement, a correlation waveform processing algorithm is utilized to obtain a differential acoustic time of flight measurement from two measured ultrasonic waveforms. To facilitate signal recognition and processing, a symmetric Lamb mode may be used as mode of excitation of the substrate.
摘要翻译：公开了一种使用飞行测量技术的差分声学时间来测量半导体衬底温度的方法和装置。该测量基于测量穿过基底的声波（超声波）的飞行时间，以及从测量的飞行时间和基底材料的声速的已知温度依赖性来计算基底温度。差分声学时间飞行方法消除了大量的干扰和误差源，例如由于超声换能器和基底之间的耦合变化。为了进一步提高差分声学时间飞行测量的精度，利用相关波形处理算法从两个测量的超声波波形获得飞行测量的差分声学时间。为了便于信号识别和处理，可以使用对称的兰姆模式作为衬底的激发模式。

8. 发明申请

US20140198822A1 APPARATUS AND METHOD FOR DETERMINING TEMPERATURE 有权
标题翻译：用于测定温度的装置和方法
公开(公告)号：US20140198822A1
公开(公告)日：2014-07-17
申请号：US13740850
申请日：2013-01-14
申请人： GENERAL ELECTRIC COMPANY
发明人： Lei Sui , Benjamin Edward McDonald , Nicholas Anderson Hobbs
IPC分类号： G01K11/22
CPC分类号： G01F1/668 , G01F15/02 , G01K11/24 , G01K13/02
摘要： An apparatus and method for determining temperature is disclosed. An ultrasonic signal is generated that propagates through a buffer and a portion of the signal is reflected at an interface. A time of flight is measured between generating the ultrasonic signal and detecting the reflected portion. The temperature is determined based on the time of flight of the reflected signal.
摘要翻译：公开了一种用于确定温度的装置和方法。产生通过缓冲器传播的超声信号，并且一部分信号在界面处被反射。在产生超声波信号和检测反射部分之间测量飞行时间。基于反射信号的飞行时间来确定温度。

9. 发明申请

US20140144156A1 GAS TURBINE TEMPERATURE MEASUREMENT 有权
标题翻译：气体涡轮温度测量
公开(公告)号：US20140144156A1
公开(公告)日：2014-05-29
申请号：US14088494
申请日：2013-11-25
申请人： ALSTOM Technology Ltd
发明人： Wolfgang LANG , Jürgen HOFFMANN
IPC分类号： F02C9/28 , G01M15/14
CPC分类号： F02C9/28 , F02C6/003 , F05D2270/303 , F05D2270/80 , G01K11/24 , G01K13/02 , G01K2013/024 , G01M15/14 , Y02E20/14
摘要： The disclosure relates to a method for determining a temperature in a pressurized flow path of a gas turbine comprising the steps of sending an acoustic signal from an acoustic signal emitting transducer across a section of the pressurized flow path, detecting the acoustic signal with a receiving transducer, measuring the time needed by the acoustic signal to travel from the acoustic signal emitting transducer to the receiving transducer, calculating the speed of sound, and calculating the temperature as a function of the speed of sound, the heat capacity ratio (□) and a specific gas constant (Rspec) of the gas flowing in the pressurized flow path.Besides the method, a gas turbine with a processor and transducers arranged to carry out such a method is disclosed.
摘要翻译：本公开涉及一种用于确定燃气轮机的加压流路中的温度的方法，包括以下步骤：从声学信号发射换能器穿过加压流动路径的一部分发送声学信号，用接收换能器检测声学信号测量声信号从声信号发射换能器行进到接收换能器所需的时间，计算声速，计算作为声速的函数的温度，热容比（□）和在加压流路中流动的气体的比气体常数（Rspec）。除了该方法之外，还公开了一种具有处理器的燃气轮机和布置成执行这种方法的换能器。

10. 发明申请

US20140123733A1 MILK PROPERTY MEASURING DEVICE 审中-公开
标题翻译：奶制品测量装置
公开(公告)号：US20140123733A1
公开(公告)日：2014-05-08
申请号：US14149875
申请日：2014-01-08
申请人： LELY PATENT N.V.
发明人： Frans Emo Diderik VAN HALSEMA
IPC分类号： G01N29/024
CPC分类号： G01N29/024 , A01J5/0137 , G01K11/24 , G01K2207/02 , G01N33/04 , G01N2291/02881
摘要： The present invention provides a system and method for a milk measuring device for measuring the acoustic properties, such as acoustic damping and sound velocity in milk, in order to determine milk properties. The sound velocity in milk depends on temperature and composition. By carrying out, for example by means of a piezo element, a reference measurement on vibrations that have been directed by a second piezo element into a wire or the like of known material, which wire is strung in the measuring chamber which is filled with the milk to be tested, the milk temperature can be derived, so that other milk properties, in particular the fat/protein composition, can be determined in a more reliable manner.
摘要翻译：本发明提供了一种用于测量牛奶中的声学特性，例如声学阻尼和声速的牛奶测量装置的系统和方法，以便确定牛奶性质。牛奶中的声速取决于温度和组成。通过例如通过压电元件执行已经由第二压电元件引导到已知材料的导线等中的振动的参考测量，该线被连接在测量室中，该测量室填充有要测试的牛奶，可以产生奶的温度，从而可以以更可靠的方式确定其他乳的特性，特别是脂肪/蛋白质组成。

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