-
公开(公告)号：EP1044356A1
公开(公告)日：2000-10-18
申请号：EP99945826.8
申请日：1999-10-04
Applicant: Digisens AG
Inventor： LUSTENBERGER, Martin , WIRTH, Johannes
CPC classification number: G01G3/165 , G01L1/10 , G01L1/106 , G01L5/0004
Abstract: The inventive force measuring cell consists of a plate (2) which is provided with a circular hole (2), the axis of which is perpendicular to the surface of said plate (2) and to the direction of the force that is to be measured. Said axis also lies within the neutral surface of the plate (2). The plate (2) can also be the web of a carrier. A measuring transducer (12) is inserted into the hole (3) in order to measure any modification of the size of the diameter of said hole (3) on a plane that is inclined at an angle of 45° counter to the direction of the force (F) to be measured. A lateral force is created in the direction of y in addition to a transverse stress τ with a component τxy by applying force in the direction of y when at least one side of the plate (2) is clamped in the base. The originally circular hole (3) is deformed into an ellipse. The measuring transducer (12) consists of a measuring transformer with an oscillating string.
-
公开(公告)号：EP0412140B1
公开(公告)日：1994-06-01
申请号：EP90902916.7
申请日：1990-01-08
Applicant: AlliedSignal Inc.
Inventor： BLAKE, Graeme, A. , NORLING, Brian, L.
CPC classification number: G01P15/097 , G01L1/10 , G01L1/183 , Y10S73/01
Abstract: A dual vibrating beam force transducer having an electrostatic drive system. The transducer comprises a body (12) having first and second generally parallel beams (20, 22), coupled together at their ends. First and second electrodes (14, 16) are positioned adjacent to but not in contact with the respective beams. A drive circuit (18) causes an oscillating voltage to be applied to the electrodes. The beams are thus subjected to electrostatic forces that cause the beams to oscillate in a vibration plane containing both beams. The mechanical resonance of the beams controls the oscillation frequency, such that the frequency is a function of a force exerted along the beams. An embodiment is also described in which the drive means is coupled directly to one of the beams.
-
公开(公告)号：EP0361473A3
公开(公告)日：1991-10-09
申请号：EP89117951.7
申请日：1989-09-28
Applicant: SHIMADZU CORPORATION
Inventor： Komoto, Akira
IPC: G01L1/10
Abstract: A vibration type force detector comprising: a string to which a force to be measured is applied in the direction in which said string is tensioned; a driver for causing said string to vibrate at its natural frequency and simultaneously producing a series of pulses at a frequency in synchronism with the vibration of said string; a gate to which said series of pulses are applied; a counter for counting said series of pulses that have passed through said gate; means for providing a gating time determined in accordance with the result of the counting of said counter; and a controller for controlling said gate in accordance with said gating time. Said gating time providing means is so arranged that as the vibration frequency of said string increases, said gating time lengthens.
-
公开(公告)号：EP0248226A3
公开(公告)日：1988-07-27
申请号：EP87106609
申请日：1987-05-07
Applicant: MAATSCHAPPIJ VAN BERKEL'S PATENT N.V.
Abstract: Bei einer Vorrichtung dieser Art wird ein Parallel- Führungskörper verwendet, der außer einem im Meßfall ruhenden Steg auch noch einen beweglichen Steg aufweist, auf den die zu messende Kraft oder das zu messende Gewicht einwirken. Die beiden Stege sind durch ein Paar von im Höhenabstand zueinander angeordneten Blattfedern verbun den. Am einen Steg sitzt ein elastisches Übertragungsorgan, welches zur Untersetzung der wirkenden Kraft nur einen Teil des Gewichts bzw. der Kraft auf ein Meßelement überträgt. Um die Meßgenauigkeit zu erhöhen, wird vorgeschlagen, als Übertragungsorgan einen weiteren Parallel-Führungskörper im Innenraum eines solchen Parallel-Führungskörpers an zuordnen, der seinerseits ein Paar von inneren Blattfedern besitzt, die am Steg des Außenkörpers sitzen und durch einen beweglichen Innensteg miteinander verbunden sind. Dieser Innensteg greift am Meßelement an.
Abstract translation: 在这种装置中，使用平行运动体，除了在测量的情况下保持静止的腹板之外，还具有可移动的腹板，待测量的力或要测量的重量作用在其上。 两个腹板通过彼此垂直间隔布置的一对板簧连接。 位于一个腹板上的是弹性传递构件，为了减小作用力，仅将部分重量或力传递到测量元件。 为了提高测量精度，建议在这种平行运动体的内部设置另外的平行运动体作为传递部件，所述平行运动体部分具有一对内部板簧 它们位于外部本体的腹板上并且通过可移动的内部腹板彼此连接。 该内腹板啮合在测量元件上。
-
公开(公告)号：EP0136627A2
公开(公告)日：1985-04-10
申请号：EP84111246.9
申请日：1984-09-20
Applicant: QUARTZTRONICS, INC.
Inventor： EerNisse, Errol P. , Ward, Roger W.
Abstract: A method and apparatus for measuring force or other parameters and temperature. The apparatus includes an oscillator and a vibratory element, such as a quartz crystal, which is caused to resonate by the oscillator at two frequencies f 1 and f 2 selected from the fundamental frequency and its overtone frequencies of the vibratory element. The vibratory element is selected so that the two frequencies f 1 and f 2 both vary with variation in force (or other parameter) applied to the element and with variation in temperature of the element, and so that the magnitude or scale factor of variation for frequency f, is different from that for frequency f 2 . The apparatus also includes a detection device for detecting the frequencies f, and f 2 and for producing signals representing the frequency variation of the two frequencies relative to a reference frequency, and a processor for processing the signals produced by the detector device for determining the force (or other parameter) and temperature to which the vibratory element is subjected.
-
Patent Agency Ranking
公开(公告)号：WO2014058952A1
公开(公告)日：2014-04-17
申请号：PCT/US2013/063993
申请日：2013-10-09
Applicant: BOSCH AUTOMOTIVE SERVICE SOLUTIONS LLC
Inventor： THEMM, Jeremy , WITTLIFF, III, William W. , SELKIRK, Reed , GRAY, Kevin
IPC: G01L5/00
CPC classification number: G01L1/00 , G01H1/00 , G01H3/00 , G01H9/00 , G01H11/00 , G01L1/10 , G01L1/103 , G01L5/042 , G01L5/105
Abstract: A measuring system including a sensor positioned to a belt to measure an oscillation or vibration of the belt based at least in part on a trigger threshold. Also, the measuring system may include a diagnostic tool coupled the sensor to receive a plurality of measurements of the oscillation or vibration of the belt, wherein the diagnostic tool may determine a tension of the belt based at least in part on an average of the plurality of measurements of the oscillation or vibration of the belt.
Abstract translation: 一种测量系统，包括至少部分地基于触发阈值定位到皮带上以测量皮带的振动或振动的传感器。 此外，测量系统可以包括诊断工具，耦合传感器以接收带的振荡或振动的多个测量值，其中诊断工具可以至少部分地基于多个平均值来确定皮带的张力 测量皮带的振动或振动。
-
公开(公告)号：WO2013164927A1
公开(公告)日：2013-11-07
申请号：PCT/JP2013/057765
申请日：2013-03-19
Applicant: セイコーインスツル株式会社 , 国立大学法人東京大学
CPC classification number: G01L1/16 , G01L1/10 , G01L9/0002 , G01L9/0045 , G01L9/008 , G01L13/06 , G01L23/04
Abstract: この圧力センサは、第一面と、前記第一面に開口を有するキャビティと、を有するセンサ本体と、前記第一面上に支持された基端部と、前記開口の内側において前記開口の周縁との間にギャップを形成するように配設された先端部と、を有し、前記キャビティの内部と外部との圧力差に応じて撓み変形する、半導体材料により形成されたカンチレバーと、前記ギャップの幅（μｍ）がＧで表され、前記キャビティの容積（ｍｌ）がＶで表され、比例定数がｋで表された下記式（１）によって規定される下限周波数ｆ ＬＯＷ （Ｈｚ）よりも大きい周波数で前記圧力差に応じて振動する前記カンチレバーの変位を測定する変位測定部と、を備える。 ｆ ＬＯＷ ＝ｋ・（Ｇ 2 ／Ｖ）・・・（１）
Abstract translation: 该压力传感器包括：传感器主体，包括第一表面和包括第一表面中的孔的空腔; 由所述第一表面支撑的基部; 以及端部，其布置成与孔的内侧中的孔的边缘形成间隙。 所述压力传感器设置有：响应于所述空腔的内部和外部之间的压力差而弯曲变形并由半导体材料形成的悬臂; 以及位移测量部分，其测量响应于压力差的悬臂的位移以大于由下式（1）定义的下限频率（fLOW）（Hz）的频率振动，其中G表示 间隙的宽度（mum），空腔的体积（ml），和比例的常数。 fLOW = k×（G2 / V）...（1）
-
118.发明申请
公开(公告)号：WO2013023046A1
公开(公告)日：2013-02-14
申请号：PCT/US2012/050127
申请日：2012-08-09
Applicant: THOMPSON AUTOMOTIVE LABS LLC , THOMPSON, John , HORLBECK, Eric
Inventor： THOMPSON, John , HORLBECK, Eric
CPC classification number: G01M15/12 , F02D41/1497 , F02D2041/286 , F02D2041/288 , F02D2200/1015 , G01L1/10 , G01L5/00 , G01M15/11
Abstract: Methods of analyzing a cyclo-mechanical engine include detecting an engine signal associated with a plurality of cycles of the cyclo-mechanical engine, comparing a first sample of the engine signal with a second sample of the engine signal to determine a cycle length of the cyclo-mechanical engine, and analyzing the engine signal to detect a variation in the cycle length of the cyclo-mechanical engine over time based on the determined cycle length. Related systems and computer program products are also disclosed.
Abstract translation: 分析环路机械发动机的方法包括检测与循环机械发动机的多个循环相关联的发动机信号，将发动机信号的第一样本与发动机信号的第二样本进行比较以确定循环的循环长度 基于所确定的循环长度，分析发动机信号以检测环形机械发动机的循环长度随时间的变化。 还公开了相关系统和计算机程序产品。
-
公开(公告)号：WO2010065974A1
公开(公告)日：2010-06-17
申请号：PCT/AT2009/000438
申请日：2009-11-16
Applicant: SUESS, Dieter
Inventor： SUESS, Dieter
IPC: G01L9/16
Abstract: Die Erfindung betrifft einen Sensor (2) zum Messen einer auf ihn einwirkenden mechanischen Spannung. Die Erfindung ist dadurch gekennzeichnet, dass der Sensor ein schwingendes, magnetostriktives Resonatorplättchen (3), aufweist und dass die zu messende Spannung indirekt über ein veränderliches Magnetfeld auf das Resonatorplättchen (3) wirkt. Bevorzugt wird das veränderliche Magnetfeld mittels eines Biasplättchens (5) aus magnetostriktivem Material, oder zumindest eines Permanentmagneten (15) als Folge der darauf vom zu vermessenden Körper (7) wirkenden mechanischen Spannungen geschaffen.
Abstract translation: 本发明涉及一种用于测量作用于其上的机械应力的传感器（2）。 本发明的特征在于，所述传感器包括振荡磁致伸缩Resonatorplättchen（3），并且所述电压通过一个可变磁场间接被测量的行为到Resonatorplättchen（3）。 待测量由磁致伸缩材料，或至少一个永磁体（15），作为其结果，从所述本体的偏压板（5）的装置的变化的磁场（7）优选地设置作用的机械应力。
-
公开(公告)号：WO2006039448A2
公开(公告)日：2006-04-13
申请号：PCT/US2005/035102
申请日：2005-09-29
Applicant: UNIVERSITY OF FLORIDA , SCHMITZ, Tony, Lavaun , DUNCAN, Gregory, Scott , ZIEGERT, John, Charles , BURTON, David, Corbin
Inventor： SCHMITZ, Tony, Lavaun , DUNCAN, Gregory, Scott , ZIEGERT, John, Charles , BURTON, David, Corbin
IPC: G01C3/14
CPC classification number: G01L1/10 , B23Q17/0971 , B23Q17/12
Abstract: A high frequency flexure-based dynamometer for measuring vibrations to use in determining cutting forces in a tool. He dynamometer device may operate within a preselected high frequency range while measuring cutting forces less than about 1 N. The dynamometer may include two coupled flexures that interact to produce vibration modes at the edge of a selected bandwidth of interest. These modes may produce a frequency response function within the desired frequency band that has a magnified response and is substantially constant. The dynamometer may include a workpiece mounted to one of the two flexures and a one or more precision accelerometers mounted to the first or second flexures. Finite element analysis may be used to optimize the flexure design.
Abstract translation: 一种用于测量振动以用于确定工具中的切削力的高频挠曲力测力计。 他的测力计装置可以在预选的高频范围内操作，同时测量小于约1N的切割力。测力计可以包括两个耦合的弯曲，其相互作用以在所选择的带宽边缘产生振动模式。 这些模式可以在具有放大响应并且基本上恒定的期望频带内产生频率响应函数。 测力计可以包括安装到两个挠曲件之一的工件和安装到第一或第二挠曲件上的一个或多个精密加速度计。 有限元分析可用于优化弯曲设计。
-
-
-
-
-
-
-
-
-
Search Results
311
records
(took 0.106 seconds)
