公开(公告)号：US11796509B2

公开(公告)日：2023-10-24

申请号：US17913161

申请日：2020-05-07

申请人： Mitsubishi Electric Corporation

发明人： Jini Hon ,  Akira Morikawa ,  Noriaki Katsumata

IPC分类号： G01N29/02 ,  G01N29/024 ,  F24F110/20

CPC分类号： G01N29/024 ,  F24F2110/20 ,  G01N2291/02845

摘要： A humidity sensor includes a sound wave element configured to transmit a sound wave and receive the sound wave reflected by a reflector, a reception circuit configured to obtain an arrival time of the reflected wave received by the sound wave element, and a humidity analysis circuit configured to calculate humidity by using the arrival time, a distance from the sound wave element to the reflector, and a temperature of a space from the sound wave element to the reflector.

公开(公告)号：US20180095057A1

公开(公告)日：2018-04-05

申请号：US15286211

申请日：2016-10-05

申请人： Ford Global Technologies, LLC

发明人： Michael McQuillen ,  Gopichandra Surnilla ,  Douglas Blue ,  Richard E. Soltis ,  Daniel A. Makled ,  Mohannad Hakeem

IPC分类号： G01N29/032

CPC分类号： G01N29/032 ,  G01N29/024 ,  G01N29/343 ,  G01N29/348 ,  G01N2291/015 ,  G01N2291/02845

摘要： Methods and systems are provided for conducting measurements of relative humidity using an ultrasonic sensor. In one example, a plurality of ultrasonic signals having different frequencies are transmitted from a single sensor, and attenuation values of reflected signals are determined only for those signals determined to have the same transit time from transmission to receipt, and where frequency of the plurality of ultrasonic signals may be changed responsive to an indication that the signals may be below a signal-to-noise threshold. In this way, by determining a difference between attenuation values between pairs of signals, where the signals comprise different frequencies and where the signals comprise the same transit times, relative humidity may be accurately determined.

公开(公告)号：US20170097222A1

公开(公告)日：2017-04-06

申请号：US15380943

申请日：2016-12-15

申请人： Frito-Lay North America, Inc.

发明人： Ou BAI ,  Wilfred Marcellien BOURG, JR. ,  Scott FAGAN ,  Enrique MICHEL-SANCHEZ ,  Shahmeer Ali MIRZA ,  Scott G. RICHARDSON ,  Chen C. SHAO

IPC分类号： G01B5/28 ,  G01N33/10 ,  G01N33/02 ,  G01N29/24

CPC分类号： G01N29/2418 ,  G01B5/28 ,  G01H9/008 ,  G01N29/12 ,  G01N29/42 ,  G01N29/4454 ,  G01N33/025 ,  G01N33/10 ,  G01N2291/02466 ,  G01N2291/02818 ,  G01N2291/02827 ,  G01N2291/02845 ,  G01N2291/0289

摘要： A photo acoustic non-destructive measurement apparatus and method for quantitatively measuring texture of a food snack is disclosed. The apparatus includes a laser generating tool, an acoustic capturing device, and a data processing unit. The laser generating tool directs a laser towards a food snack placed on a surface and creates pressure waves that propagate through the air and produce an acoustic signal. The acoustic capturing device records and forwards the signal to a data processing unit. The data processing unit further comprises a digital signal processing module that processes the received acoustic signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Texture of food snacks are quantitatively measured with the quantitative acoustic model.

公开(公告)号：US20170023528A1

公开(公告)日：2017-01-26

申请号：US15121012

申请日：2014-03-03

申请人： EMPIRE TECHNOLOGY DEVELOPMENT LLC

发明人： Masaaki Mihara

IPC分类号： G01N29/07

CPC分类号： G01N29/07 ,  G01N2291/011 ,  G01N2291/02845

摘要： Technologies are generally described for measuring hair moisture using a hair moisture measuring device including a vibrator, a sound wave detector, a heater, and/or a processor. The vibrator may generate and propagate first sound waves through a strand of hair, which may be detected by the sound wave detector. The processor may then measure a first time-delay between the first sound waves and the first driving signals. After heating the hair by the heater, the vibrator may generate and propagate second sound waves through the strand of hair, which may be detected by the sound wave detector. The processor may measure a second time-delay between the second sound waves and the second driving signals, and also measure an amount of the moisture by calculating a time-delay difference between the first time-delay and the second time-delay.

摘要翻译： 通常使用包括振动器，声波检测器，加热器和/或处理器的头发水分测量装置来测量头发水分的技术。 振动器可以通过可以由声波检测器检测的一束头发产生和传播第一声波。 处理器然后可以测量第一声波和第一驱动信号之间的第一时间延迟。 在通过加热器加热毛发之后，振动器可以通过可以由声波检测器检测到的头发束产生和传播第二声波。 处理器可以测量第二声波和第二驱动信号之间的第二时间延迟，并且还通过计算第一时间延迟和第二时间延迟之间的时间延迟差来测量湿度的量。

公开(公告)号：US20150260587A1

公开(公告)日：2015-09-17

申请号：US14417656

申请日：2012-11-12

申请人： SH INFOTECH CO., LTD.

发明人： Qihong Zheng ,  Zechen Li

IPC分类号： G01K11/26 ,  G01N29/24 ,  G01N29/036

CPC分类号： G01K11/265 ,  G01N29/022 ,  G01N29/036 ,  G01N29/2462 ,  G01N29/2481 ,  G01N29/30 ,  G01N2291/02845 ,  G01N2291/02881 ,  G01N2291/0423

摘要： The present invention provides a wireless temperature and humidity sensor and system, and measurement method. The wireless temperature and humidity sensor comprises a substrate, a feeding network, an antenna and surface acoustic wave resonators, wherein the surface acoustic wave resonators are fed by said feeding network through said antenna. Said surface acoustic wave resonator comprises a reference resonator and measuring resonators. The resonant frequency difference between said reference resonator and said measuring resonators is used to modulate the temperature and/or humidity to be measured. Said system can monitor both temperature and humidity simultaneously, or monitor humidity or temperature selectively. Furthermore, frequency drift caused by aging of the sensor material and the connector is effectively suppressed by the differential modulation, thereby improving long-term stability of measurement and avoiding recalibration.

摘要翻译： 本发明提供一种无线温湿度传感器和系统及其测量方法。 无线温度和湿度传感器包括基板，馈电网络，天线和表面声波谐振器，其中表面声波谐振器由所述馈电网络通过所述天线馈送。 所述表面声波谐振器包括参考谐振器和测量谐振器。 使用所述参考谐振器和所述测量谐振器之间的谐振频率差来调制待测量的温度和/或湿度。 所述系统可以同时监测温度和湿度，或者选择性地监测湿度或温度。 此外，通过差分调制有效地抑制了传感器材料和连接器的老化引起的频率漂移，从而提高了测量的长期稳定性并避免了重新校准。

公开(公告)号：US20150177196A1

公开(公告)日：2015-06-25

申请号：US14137990

申请日：2013-12-20

申请人： MATRIX SENSORS, INC.

发明人： Heinrich Sussner ,  Paul R. Wilkinson

IPC分类号： G01N29/24 ,  G01N27/22

CPC分类号： G01N29/2406 ,  G01N27/223 ,  G01N2291/0256 ,  G01N2291/02845 ,  G01N2291/101 ,  G01N2291/106

摘要： A sensor array includes at least first and second resonator sensors. A receptor material on the first sensor is hydrophilic relative to a receptor material on the second sensor, and the receptor material on the second sensor is hydrophobic relative to the receptor material on the first sensor. At least one detector measures sensor responses when masses of one or more of substances are adsorbed or bound to the sensors. A processor receives signals or data representative of the sensor responses. The processor is programmed to determine at least one humidity value according to the sensor responses.

摘要翻译： 传感器阵列至少包括第一和第二谐振器传感器。 第一传感器上的受体材料相对于第二传感器上的受体材料是亲水的，并且第二传感器上的受体材料相对于第一传感器上的受体材料是疏水的。 当质量的一种或多种物质吸附或结合到传感器时，至少一个检测器测量传感器响应。 处理器接收代表传感器响应的信号或数据。 处理器被编程为根据传感器响应来确定至少一个湿度值。

公开(公告)号：US08652552B2

公开(公告)日：2014-02-18

申请号：US13147435

申请日：2010-02-18

申请人： Sergey Argudayev ,  Vladimir Gerasimov ,  Roberto Giordano

发明人： Sergey Argudayev ,  Vladimir Gerasimov ,  Roberto Giordano

IPC分类号： G01N29/024 ,  A23L1/01

CPC分类号： G01N29/024 ,  G01N29/348 ,  G01N2291/0215 ,  G01N2291/02845

摘要： The present invention relates to an apparatus for estimating the air humidity within an oven cavity (14) by using ultrasound waves with at least two different frequencies (f1, f2). Said apparatus comprises at least one ultrasound transmitter (10) for generating the ultrasound waves, at least one ultrasound receiver (12) for receiving the ultrasound waves and at least one phase detecting device for detecting the phase (φ1, φ2) of the ultrasound wave at the ultrasound receiver (12) relative to the same ultrasound wave with the same frequency (f1, f2) at the ultrasound transmitter (10). Said apparatus comprises further at least one evaluation unit for calculating the velocity (V) of the ultrasound waves on the basis of the phases (φ1, φ2) and frequencies (f1, f2) of the ultrasound waves with the two different frequencies (f1, f2), at least one temperature sensor (32) for detecting the temperature (T) in the oven cavity (14) and at least one estimation unit for estimating the humidity in the oven cavity (14) on the basis of the temperature (T) and the velocity (V) of the ultrasound waves. Further, the present invention relates to a corresponding method for estimating the air humidity within an oven cavity (14).

摘要翻译： 本发明涉及一种用于通过使用具有至少两个不同频率（f1，f2）的超声波来估计烤箱腔（14）内的空气湿度的装置。 所述装置包括用于产生超声波的至少一个超声波发射器（10），用于接收超声波的至少一个超声波接收器（12）和用于检测超声波的相位（phi1，phi2）的至少一个相位检测装置 在超声波发射器（10）处相对于具有相同频率（f1，f2）的相同超声波在超声波接收器（12）处。 所述装置还包括至少一个评估单元，用于基于具有两个不同频率（f1，f2）的超声波的相位（phi1，phi2）和频率（f1，f2）计算超声波的速度（V） f2），用于检测烤箱腔（14）中的温度（T）的至少一个温度传感器（32）和用于基于温度（T）估计烤箱腔（14）中的湿度的至少一个估计单元 ）和超声波的速度（V）。 此外，本发明涉及用于估计烤箱腔（14）内的空气湿度的相应方法。

公开(公告)号：US08624465B2

公开(公告)日：2014-01-07

申请号：US13287518

申请日：2011-11-02

申请人： Jae Phil Do ,  Sang Kyu Kim ,  Jae Young Kim ,  Woo Chang Lee ,  Jae Yeon Jung ,  Soo Suk Lee ,  Youn Suk Choi

发明人： Jae Phil Do ,  Sang Kyu Kim ,  Jae Young Kim ,  Woo Chang Lee ,  Jae Yeon Jung ,  Soo Suk Lee ,  Youn Suk Choi

IPC分类号： H03H9/25 ,  H01L41/107

CPC分类号： G01N29/022 ,  G01N29/38 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/02818 ,  G01N2291/02845 ,  G01N2291/02881 ,  G01N2291/0423

摘要： A surface acoustic wave (“SAW”) sensor system comprises a signal generating part, which applies an electrical signal to a SAW sensor, the SAW sensor connected to the signal generating part, which converts the electrical signal into a SAW, senses a measurement target using the SAW, and converts a SAW output corresponding to the measurement target into an electrical signal, and a signal measuring part connected to one side of the SAW sensor, which detects a change in the electrical signal by time-gating a multiple-transit-echo wave.

摘要翻译： 表面声波（“SAW”）传感器系统包括向SAW传感器施加电信号的信号产生部分，连接到信号产生部分的SAW传感器，其将电信号转换成SAW，感测测量目标 使用SAW，并将与测量对象相对应的SAW输出转换为电信号，以及连接到SAW传感器的一侧的信号测量部，其通过对多个传输时间进行时间选通来检测电信号的变化， 回波。

公开(公告)号：US20130336842A1

公开(公告)日：2013-12-19

申请号：US14001917

申请日：2012-03-02

申请人： Hubert Grange

发明人： Hubert Grange

IPC分类号： G01N30/00

CPC分类号： G01N30/00 ,  B01D2253/202 ,  B01D2253/25 ,  B01J20/3204 ,  B01J20/3272 ,  B01J2220/445 ,  G01N27/12 ,  G01N27/121 ,  G01N27/126 ,  G01N27/22 ,  G01N27/223 ,  G01N2291/02845

摘要： The invention relates to a humidity sensor including, as a humidity absorbent layer, a polymer layer including a blend including a first polyamide and a second polyamide, where the said second polyamide includes, in its repetitive units, a number of carbon atoms greater than that of the repetitive units of the first polyamide.

摘要翻译： 本发明涉及一种湿度传感器，其包括作为吸湿层的聚合物层，其包括包含第一聚酰胺和第二聚酰胺的共混物，其中所述第二聚酰胺以其重复单元包含大于 的第一聚酰胺的重复单元。

公开(公告)号：US07373260B2

公开(公告)日：2008-05-13

申请号：US11071129

申请日：2005-03-03

申请人： Seth S. Kessler ,  Kristin A. Jugenheimer ,  Aaron B. Size

发明人： Seth S. Kessler ,  Kristin A. Jugenheimer ,  Aaron B. Size

IPC分类号： G01B5/30

CPC分类号： G01B5/30 ,  G01L1/16 ,  G01M5/0033 ,  G01M5/0075 ,  G01N29/045 ,  G01N29/12 ,  G01N29/2475 ,  G01N29/2481 ,  G01N2291/0258 ,  G01N2291/02827 ,  G01N2291/02845 ,  G01N2291/0422 ,  G01N2291/0427 ,  G01N2291/106 ,  G01N2291/2694

摘要： A device for use in detecting an event in a structure includes a sensor encapsulation, the encapsulation containing a sensor, an actuator positioned substantially in-plane to the sensor within the housing and a printed circuit board in communication with at least one of the sensor and the actuator. The printed circuit board includes a microprocessor constructed and arranged to collect data from at least one of the sensor and the actuator, a signal generator constructed and arranged to provide excitation to at least one of the sensor and the actuator, and an amplifier to condition the excitation.

摘要翻译： 用于检测结构中的事件的装置包括传感器封装，包含传感器的封装，与壳体内的传感器基本上位于同一平面内的致动器以及与传感器和传感器中的至少一个通信的印刷电路板 执行器。 印刷电路板包括构造和布置成从传感器和致动器中的至少一个收集数据的微处理器，构造和布置成向传感器和致动器中的至少一个提供激励的信号发生器，以及放大器，用于调节 励磁。