公开(公告)号：US4991439A

公开(公告)日：1991-02-12

申请号：US272857

申请日：1988-11-18

申请人： William B. Betts

发明人： William B. Betts

IPC分类号： G01H11/08 ,  G01N29/14 ,  G01V1/00 ,  G10K11/24

CPC分类号： A01M1/026 ,  G01H11/08 ,  G01N29/14 ,  G01V1/001 ,  G10K11/24

摘要： Grain-destroying insects, and those which may infect other types of particulate matter, when feeding and moving about, induce vibrations in the grain or particulate material affected which is modified and amplified to an audible level. The detection is performed using a crystal with piezoelectric properties directly and physically connected to a vibratory receiving structure such as an elongated probe, a thin, flat diaphragm or the like which mechanically amplifies the vibrations to the crystal. The vibratory sounds are then analyzed, such as by comparison with other records of known destructive insects to determine the probable species of insect and its location.

摘要翻译： 谷物破坏的昆虫以及可能感染其他类型的颗粒物质的昆虫，当进食和移动时，会影响受影响的谷物或微粒材料的振动，并将其放大到可听见的水平。 使用具有压电特性的晶体进行检测，该晶体直接并物理地连接到振动接收结构，例如将振动机械地放大到晶体的细长探针，薄的平坦膜片等。 然后分析振动声音，例如与已知的破坏性昆虫的其他记录进行比较，以确定昆虫的可能种类及其位置。

公开(公告)号：US4978883A

公开(公告)日：1990-12-18

申请号：US411290

申请日：1989-09-22

申请人： Satoshi Komurasaki

发明人： Satoshi Komurasaki

IPC分类号： G01H11/08

CPC分类号： G01H11/08

摘要： A vibration detecting device which comprises a bush of metal having a cylindrical portion at its center; a casing of a resinous material which is formed by insertion-molding along with the bush so as to form a receiving portion at the outer side of the cylindrical portion; a piezoelectric element, a terminal and a weight placed along the outer periphery of the cylindrical portion of the bush in the receiving portion; a nut fastened to the cylindrical portion to secure the piezoelectric element, the terminal and the weight, and a filler for sealing the nut and the other elements received in the receiving portion, wherein one side of the receiving portion with respect to the vibration detecting direction is open.

摘要翻译： 一种振动检测装置，包括在其中心具有圆柱形部分的金属衬套; 树脂材料的壳体，其通过与所述衬套一起插入成型而形成，以在所述圆筒部分的外侧形成接收部分; 压电元件，端子和重物，沿着所述衬套的圆筒部分的外周放置在所述容纳部分中; 固定在圆筒部上以固定压电元件，端子和重物的螺母以及用于密封容纳在接收部分中的螺母和其它元件的填充物，其中接收部分相对于振动检测方向的一侧 开了。

公开(公告)号：US4796026A

公开(公告)日：1989-01-03

申请号：US75280

申请日：1987-07-20

申请人： John A. Hammond

发明人： John A. Hammond

IPC分类号： G01H11/08 ,  G01V1/52 ,  G01V1/40

CPC分类号： G01V1/52 ,  G01H11/08

摘要： Apparatus for detecting acoustic disturbances include an electrical circuit for processing electrical signals generated by an acoustic sensor in response to acoustic disturbances. The processing circuitry converts the electrical data signals into output signals wherein the information about the input audio signals is carried by the frequencies of the output signals. High frequency signals may be isolated and processed to provide relatively low frequency digital pulse signals which may be readily transmitted over wirelines in a logging operation. The sensor apparatus may include a stack of piezoelectric crystals which are electrically connected by means of pressure contacts.

摘要翻译： 用于检测声学干扰的装置包括用于响应于声学干扰来处理由声学传感器产生的电信号的电路。 处理电路将电数据信号转换成输出信号，其中关于输入音频信号的信息由输出信号的频率承载。 高频信号可以被隔离和处理以提供相对低频的数字脉冲信号，其可以在测井操作中容易地通过有线线路传输。 传感器装置可以包括通过压力接触电连接的压电晶体的堆叠。

公开(公告)号：US4562740A

公开(公告)日：1986-01-07

申请号：US602251

申请日：1984-04-20

申请人： Hugh C. Webber ,  David V. Tinder

发明人： Hugh C. Webber ,  David V. Tinder

IPC分类号： G01H11/08 ,  G01L23/22 ,  B21D39/00 ,  H01L41/00

CPC分类号： G01L23/222 ,  G01H11/08 ,  Y10T29/42 ,  Y10T29/49004 ,  Y10T29/49915

摘要： An improved method and apparatus are provided for making vibration sensors, particularly of the type used in automotive applications wherein a piezoelectric element is affixed to a flexing plate which is mounted on a support stem in "umbrella" fashion. A desired resonant vibrating frequency of the sensor is obtained by progressively working a neck portion of the support stem, as by peening, to effectively decrease the vibrating radius of the plate and thus increase its resonant frequency toward and to a desired resonant frequency. The plate's frequency is monitored and the working of the stem neck portion is terminated when a desired resonant frequency is attained. An inclined support shoulder on the stem below the neck portion facilitates the aforementioned manufacture. An undercut positioned in the stem neck portion near its transition into the support shoulder further facilitates the manufacture.

摘要翻译： 提供了一种用于制造振动传感器的改进方法和装置，特别是用于汽车应用中的类型的振动传感器，其中压电元件固定到以“伞”方式安装在支撑杆上的弯曲板。 传感器的期望的共振振动频率通过逐步加工支撑杆的颈部部分而获得，如通过喷丸，以有效地减小板的振动半径，从而增加其谐振频率并达到所需的谐振频率。 当达到期望的谐振频率时，监测板的频率并且终止茎颈部的工作。 在颈部下方的柄上的倾斜支撑肩部有利于上述制造。 位于杆颈部分中的靠近其过渡到支撑肩部的底切进一步有助于制造。

公开(公告)号：US4493062A

公开(公告)日：1985-01-08

申请号：US560673

申请日：1983-12-12

申请人： A. J. Mallett

发明人： A. J. Mallett

IPC分类号： G01H11/08 ,  G01V1/40

CPC分类号： G01H11/08

摘要： For use with an acoustic transmitter in an acoustic well logging tool, an improved transducer modification circuit is set forth in the preferred and illustrated embodiment. The circuit of this disclosure modifies the diameter resonant frequency of a piezoelectric transducer, thereby expanding the frequency range downward for the transmitter transducer by moving the diameter resonant frequency.

摘要翻译： 为了在声学测井工具中与声发射器一起使用，在优选和示出的实施例中阐述了改进的换能器修改电路。 本公开的电路修改压电换能器的直径谐振频率，从而通过移动直径谐振频率来扩大发射机换能器的向下的频率范围。

公开(公告)号：US4189655A

公开(公告)日：1980-02-19

申请号：US896185

申请日：1978-04-14

申请人： Per V. Bruel

发明人： Per V. Bruel

IPC分类号： G01P15/09 ,  B06B1/06 ,  G01H11/08 ,  H01L41/10

CPC分类号： B06B1/0651 ,  G01H11/08

摘要： A lightweight accelerometer in a casing or housing, having a very small base member to mechanically contact a surface, vibrations of which are to be determined; a piezoelectric element connected to the base, a seismic mass connected to the piezoelectric element, at least one thin circular diaphragm peripherically fixed to the housing, and with the base, the piezoelectric element, and the seismic mass fixed on, and axially symmetric to, the center of diaphragm and a soft pad member on the housing providing support on and dynamically isolating the housing from the vibrating surface. Several embodiments are disclosed and in each embodiment vibrations are directly transmitted from the vibrating body or surface to the piezoelectric element through the base, a very small half of a steel sphere.

摘要翻译： 在壳体或壳体中的轻质加速度计，其具有非常小的基座构件以机械地接触表面，其振动将被确定; 连接到基座的压电元件，连接到压电元件的地震块，至少一个外围固定到壳体的薄的圆形隔膜，以及基座，压电元件和地震质量块固定在其上， 隔膜的中心和壳体上的软垫构件提供支撑并使壳体与振动表面动态隔离。 公开了几个实施例，并且在每个实施例中，振动通过基座（钢球的非常小的一半）从振动体或表面直接传递到压电元件。

公开(公告)号：US3969927A

公开(公告)日：1976-07-20

申请号：US495740

申请日：1974-08-08

申请人： Masafumi Yoshida ,  Naohiro Murayama ,  Hiroshi Obara

发明人： Masafumi Yoshida ,  Naohiro Murayama ,  Hiroshi Obara

IPC分类号： A61B5/0245 ,  B06B1/06 ,  G01H11/08 ,  G01P15/09 ,  H01L41/193 ,  G01H1/00

CPC分类号： H01L41/193 ,  B06B1/0688 ,  G01H11/08 ,  Y10S310/80 ,  Y10S73/04

摘要： A method of measuring the mechanical vibration of an object comprising contacting one of the surfaces of a piezoelectric element comprising a polarization treated polyvinylidene fluoride piezoelectric film having metal thin films as electrodes deposited on both surfaces thereof with an object to be measured while covering the opposite surface of the piezoelectric element contacting with the object to be measured with a flexible sound absorbing material for avoiding interference with sound waves in the surroundings and measuring or detecting the vibration of the object by the changes in the electric field caused by the vibration of the object and produced on the surface of the piezoelectric element.

摘要翻译： 一种测量物体的机械振动的方法，包括使压电元件的表面之一接触，所述压电元件包括​​具有金属薄膜的偏振处理的聚偏二氟乙烯压电薄膜作为在其两个表面上沉积的电极与被测量物体同时覆盖相对表面 的压电元件与柔性吸声材料接触的被测量物体，以避免与周围的声波的干扰，并通过由物体的振动引起的电场的变化来测量或检测物体的振动;以及 在压电元件的表面上产生。

公开(公告)号：US3185869A

公开(公告)日：1965-05-25

申请号：US15631261

申请日：1961-12-01

申请人： ENDEVCO CORP

发明人： SHOOR BERNARD A

IPC分类号： G01H11/08 ,  G01L1/16

CPC分类号： G01L1/16 ,  G01H11/08

公开(公告)号：US2803760A

公开(公告)日：1957-08-20

申请号：US47038754

申请日：1954-11-22

申请人： GEN ELECTRIC

发明人： WALL ROBERT L ,  DUCKWALD CHARLES S

IPC分类号： G01H11/08 ,  H02K33/00

CPC分类号： H02K33/00 ,  G01H11/08

公开(公告)号：US12131647B2

公开(公告)日：2024-10-29

申请号：US17504337

申请日：2021-10-18

申请人： Gatekeeper Systems, Inc.

发明人： Scott J. Carter ,  Stephen E. Hannah ,  Jesse M. James ,  Narayanan V. Ramanathan

IPC分类号： G08G1/00 ,  B60T7/12 ,  B60T7/18 ,  B62B3/14 ,  B62B5/00 ,  B62B5/04 ,  G01C21/12 ,  G01C21/20 ,  G01H11/08 ,  G01P3/48 ,  G01S5/00 ,  G01S5/02 ,  G01S5/14 ,  G01S11/06 ,  G05D1/00 ,  G05D1/02 ,  G06Q10/00 ,  G06Q10/06 ,  G01C17/00 ,  G01P3/02 ,  G08B13/14 ,  G08B21/02 ,  G08B29/24

CPC分类号： G08G1/207 ,  B60T7/12 ,  B60T7/18 ,  B62B3/14 ,  B62B3/1404 ,  B62B5/00 ,  B62B5/0423 ,  G01C21/12 ,  G01C21/20 ,  G01C21/206 ,  G01H11/08 ,  G01P3/48 ,  G01S5/014 ,  G01S5/02685 ,  G01S5/14 ,  G01S11/06 ,  G05D1/028 ,  G06Q10/00 ,  G06Q10/06 ,  G08G1/00 ,  B62B3/1416 ,  B62B5/0096 ,  G01C17/00 ,  G01P3/02 ,  G08B13/1427 ,  G08B13/1436 ,  G08B21/0261 ,  G08B29/24

摘要： Examples of systems and methods for locating movable objects such as carts (e.g., shopping carts) are disclosed. Such systems and methods can use dead reckoning techniques to estimate the current position of the movable object. Various techniques for improving accuracy of position estimates are disclosed, including compensation for various error sources involving the use of magnetometer and accelerometer, and using vibration analysis to derive wheel rotation rates. Also disclosed are various techniques to utilize characteristics of the operating environment in conjunction with or in lieu of dead reckoning techniques, including characteristic of environment such as ground texture, availability of signals from radio frequency (RF) transmitters including precision fix sources. Such systems and methods can be applied in both indoor and outdoor settings and in retail or warehouse settings.