CN111033168A - 感应传感器 - Google Patents

感应传感器 Download PDF

Info

Publication number
CN111033168A
CN111033168A CN201880054918.0A CN201880054918A CN111033168A CN 111033168 A CN111033168 A CN 111033168A CN 201880054918 A CN201880054918 A CN 201880054918A CN 111033168 A CN111033168 A CN 111033168A
Authority
CN
China
Prior art keywords
sensor
coil
winding portion
winding
wound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201880054918.0A
Other languages
English (en)
Inventor
C·霍夫迈尔
A·莫尼
H·内格尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innova Patent GmbH
Original Assignee
Innova Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Innova Patent GmbH filed Critical Innova Patent GmbH
Publication of CN111033168A publication Critical patent/CN111033168A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/001Constructional details of gauge heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61BRAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/06Safety devices or measures against cable fracture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/023Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/2208Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils
    • G01D5/2216Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils by a movable ferromagnetic element, e.g. a core
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/02Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/028Electrodynamic magnetometers
    • G01R33/0283Electrodynamic magnetometers in which a current or voltage is generated due to relative movement of conductor and magnetic field
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/58Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/101Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
    • G01V3/102Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945Proximity switches
    • H03K17/95Proximity switches using a magnetic detector
    • H03K17/9502Measures for increasing reliability
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945Proximity switches
    • H03K17/95Proximity switches using a magnetic detector
    • H03K17/952Proximity switches using a magnetic detector using inductive coils

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

为了使感应传感器不易受外部电磁场影响,传感器线圈(3)被设计以便具有连接至其的第一绕组部分(6a)和第二绕组部分(6b),第一绕组部分(6a)和第二绕组部分(6b)被以相反的方向缠绕并且第一绕组部分(6a)连接至第一线圈端子(5a)且第二绕组部分(6b)连接至第二线圈端子(5b)。

Description

感应传感器
本发明涉及一种包括具有两个线圈端子的传感器线圈和连接至这两个线圈端子的传感器评估单元的感应传感器、以及这种传感器在监视缆车***的缆索的位置中的用途。
非接触式感应传感器通常被用于距离测量。在该情形中,传感器可以被设计为邻近度传感器,该邻近度传感器从距离被测量对象的传感器的一定距离起工作,或者距离所述对象的距离也可以由所述传感器输出为一个值。这种传感器通常被用来监视机器和***中的特定功能性。
感应传感器使用线圈来生成电磁场,该电磁场受被测量对象的影响。该影响可以使用测量技术来记录和评估。一个示例性实施例是被设计为涡电流传感器的感应传感器。在该情形中,振荡器生成从传感器的活跃表面发出的电磁交变场。活跃表面附近的每个导电对象中的涡电流取决于对象距离活跃表面的距离而被感应出,该涡电流从振荡器汲取能量且可被检测为线圈输入处的功率损耗。
感应传感器的一种特定应用是监视缆车***的循环牵引缆索的位置。牵引缆索经由辊轮组(roller battery)的辊轮沿缆车支架上的路线被引导。牵引缆索相对于辊轮组的辊轮的位置可以使用感应传感器来监视。在这么做时,既可标识牵引缆索的侧向偏斜(其可指示例如牵引缆索从辊轮弹出),又可标识距离辊轮的旋转轴的不足的距离(其可指示例如当辊轮被卡住时牵引缆索正侵入辊轮的行进表面)。监视缆索的位置是缆车***的重要安全功能,并且可导致运输速度中的降低或导致缆车被迫关闭。当监视缆索的位置时,牵引缆索(其被设计为钢缆)被用作待测量对象,并且传感器被布置以便在牵引缆索的区域中是静止的。该应用需要感应传感器的高灵敏度,以便能够以足够的准确度检测缆索的位置。
这种感应传感器的缺点在于,传感器附近的每个外部(电)磁交变场在传感器的线圈中感应出电压。当然,从外部施加的这种过电压也干扰测量。除此之外,传感器当然还必须具有足够的过电压电阻。传感器附近的无线电波将仅感应低电压,并将主要对测量产生负面影响且降低测量的灵敏度。然而,如果雷电击中缆车的牵引缆索,则这会在牵引缆索中创建电流,由此在牵引缆索周围生成强磁场。这种雷电电流可导致非常高的电压注入传感器的线圈中。研究表明,在典型的雷电电流的情况下,几千伏的感生电压可能在线圈的出口处出现。这些高电压可损坏线圈和/或损坏后续的传感器电子设备。
当然,可以在传感器中实现电子雷电保护或防过电压保护,但这反过来干扰了测量电路并因而限制了传感器的灵敏度。
因此,本发明解决的问题是提供一种不易受外部电磁场影响的感应传感器。
该问题通过以下来解决:传感器线圈被设计以便具有连接至其的第一绕组部分和第二绕组部分,第一绕组部分和第二绕组部分被以相反的方向缠绕并且第一绕组部分连接至第一线圈端子且第二绕组部分连接至第二线圈端子。借助于以相反的方向缠绕,在绕组部分中感生的电压至少部分地彼此补偿,且因此仅低的过电压或无过电压可能在线圈端子处出现。这不干扰或仅轻微干扰测量,使得测量的高灵敏度可被达成。同样,不需要针对防止由外部电磁场引起的过电压的过电压保护的进一步措施,这些进一步措施可能干扰测量电路。这意味着还可以保护传感器免受非常高的外部电磁场(诸如举例而言,可在雷电电流通过导体的情况下发生)的影响。因此,这种传感器尤其适合于户外应用。因此,对这种传感器而言尤其有利的应用是在缆车***中的用途,例如用于监视牵引缆索的位置。
在一个简单的实施例中,传感器线圈被以八字形连续地缠绕。这种传感器线圈尤其容易制造。
以下传感器线圈是尤其有利的:该传感器线圈包括第一单线圈作为第一绕组部分,该第一单线圈与作为第二绕组部分的第二单线圈串联连接。借助于该实施例,传感器线圈的各个个体绕组之间的高微分电压可被避免,这降低了电压击穿的风险。
如果第一单线圈和第二单线圈被螺旋地缠绕,则尤其平坦的传感器线圈可被创建,这对于在传感器中使用而言是有利的。
在下文中,将参考图1至5更详细地解释本发明,图1至5以示意性和非限制性的方式示出了本发明的示例性有利实施例。在附图中:
图1示出了非接触式感应传感器的工作原理;
图2示出了根据本发明的传感器线圈的第一实施例;
图3示出了根据本发明的传感器线圈的进一步的实施例;
图4示出了根据本发明的传感器线圈的进一步的实施例;以及
图5示出了根据本发明的传感器线圈在监视缆车***中的缆索的位置中的用途。
用于距离测量的感应传感器的原理如图1所示。传感器线圈3生成电磁场,该电磁场与导电对象4相互作用。该相互作用可以通过传感器评估单元2在传感器线圈3的出口5处被检测和评估,例如经由线圈电压u和/或线圈电流i。在作为涡电流传感器的一个实施例中,传感器评估单元2中的振荡器生成高频交变电压,该高频交变电压被施加到传感器线圈3并生成高频交变场。该高频交变场在传感器1的影响区域中的对象4中生成涡电流,该电流从电磁交变场汲取能量,由此降低了振荡器电压的振荡幅度的高度。振荡幅度中的这种改变由传感器评估单元2来评估。如果被实施为邻近度开关,则传感器1供应高电平或低电平作为输出信号A,或者输出信号A表示在传感器线圈3与对象4之间的距离的测量。在后一种情形中,输出信号A可以是模拟的(例如电压),或者是数字的。
然而,感应传感器1操作起来所根据的原理或传感器评估单元2如何被设计或其如何被评估或输出信号A被输出的方式与本发明无关。
本发明基于传感器线圈3的特定实施例。根据本发明,传感器线圈3被设计以便具有连接至其的第一绕组部分6a和第二绕组部分6b,该第一绕组部分6a和第二绕组部分6b被以相反的方向缠绕。第一线圈端子5a被连接至第一绕组部分6a,而第二线圈端子5b则被连接至第二绕组部分6b。作为在相反方向上缠绕这两个绕组部分6a、6b的结果,外部电磁场在这两个绕组部分6a、6b中感应出相反的电压,这些电压至少部分地彼此补偿。以这种方式,显著较低的过电压通过线圈端子5a、5b处的外部电磁场来被产生。如果这两个绕组部分6a、6b除了缠绕方向之外都是等同的,则在其中感应的电压基本上彼此抵消,并且在线圈端子5a、5b处不存在或仅存在极低的过电压。这至少适用于均匀的外部电磁场,但可通常被假定用于典型应用。然而,即使在非均匀的外部场的情形中,两个感应出的电压将在很大程度上彼此补偿。
传感器线圈3可以被连续地缠绕或者也可以包括两个串联连接的单线圈。
在根据图2的第一实施例中,传感器线圈3被以八字形连续地缠绕。为了简单起见,在图2中示出了每绕组部分6a、6b仅两个绕组,但是传感器线圈3当然也可以具有更多的绕组。作为八字形成形的绕组的结果,这两个所得到的绕组部分6a、6b具有相反的缠绕方向。
类似的结果通过以下来获得:首先缠绕线圈,在一点处压缩所缠绕的线圈,并接着相对于所得到的绕组部分之一6b将另一绕组部分6a旋转180°。这同样产生了连续缠绕的八字形成形的传感器线圈3,其具有在相反方向上缠绕的两个绕组部分6a、6b。
当以相反方向缠绕的两个单线圈7a、7b被串联连接时,产生了进一步的实施例。在该情形中,这两个单线圈7a、7b各自在传感器线圈3中形成绕组部分6a、6b,如图3所示。
在一个尤其有利的实施例中,形成绕组部分6a、6b的两个单线圈7a、7b被螺旋地缠绕,如图4所示。在该情形中,绕组部分6a、6b的绕组被优选地布置在一个平面内。在该情形中,绕组部分6a、6b可以被缠绕为单层螺旋或者也可以被缠绕为多层螺旋。在一个实施例中,传感器线圈3尤其可以是平坦的。
与连续缠绕的传感器线圈3相比,包括串联连接的单线圈7a、7b的实施例的优点在于,在传感器线圈3的毗邻绕组之间的电压差总是小的,且因此不会发生将损坏传感器线圈3的非期望的电压击穿。在八字形成形的实施例的情形中,在各个个体绕组之间,尤其是在各个个体绕组的交叉点的区域中可能存在大的电压差,出于该原因,电压击穿的风险在该情形中较高,且因此必须根据情况采取更高的绝缘措施。
为了避免由绕组部分6a、6b生成的电磁激励场并不完全或部分地彼此抵消,这两个绕组部分6a、6b被布置成在一个平面内彼此相邻(如图所示),并且不是一前一后。该平面也被称为传感器1的活跃表面8(图1),电磁场从该表面发出。在该情形中,对象4被布置成与传感器1的活跃表面8相对,以便达到电磁场的影响区域。
传感器1也可被用在对安全性攸关的应用中,且因此传感器1也可以被设计成满足功能安全性要求(例如,符合IEC 61508的安全性要求等级)。例如,传感器1可以被设计为以便具有两通道传感器评估单元2,还可以在各通道上提供相互检查。当然,还可以想到针对达成功能安全性的其他或附加的已知措施。
根据本发明的感应传感器1的一个有利应用是监视缆车***10的缆索的位置,如图5所示。在图5中尽可能必要且仅部分示出缆车***10,因为在各种实施例中的缆车***的基本结构是众所周知的。在该情形中,传感器1被布置成例如以便在缆车支架上的包括数个缆索辊轮12的辊轮组11的区域中是静止的,且以便与牵引缆索13处于非接触式操作连接。当然,传感器1还可以被布置在缆车***10中的任何其他点处,以便监视牵引缆索13的位置。在该情形中,“处于操作连接”当然意味着作为对象4的牵引缆索13充分地影响传感器1的传感器线圈3的电磁场,以使得牵引缆索13相对于传感器1的位置中的改变可以由传感器评估单元2来检测和评估。为此,牵引缆索13被布置成与传感器1的活跃表面8相对。来自传感器1的输出信号A被传送至缆车控制单元20,并在所述单元中用于控制缆车***10。该传输当然可以是有线或无线的。例如,取决于输出信号A,牵引缆索13的运输速度可被改变,或者缆车***10可被停止。

Claims (6)

1.一种感应传感器,包括具有两个线圈端子(5a、5b)的传感器线圈(3)和连接至所述两个线圈端子(5a、5b)的传感器评估单元(2),其特征在于,所述传感器线圈(3)被设计以便具有连接至其的第一绕组部分(6a)和第二绕组部分(6b),所述第一绕组部分(6a)和所述第二绕组部分(6b)被以相反的方向缠绕并且所述第一绕组部分(6a)连接至第一线圈端子(5a)且所述第二绕组部分(6b)连接至第二线圈端子(5b)。
2.根据权利要求1所述的感应传感器,其特征在于,所述传感器线圈(3)被以八字形连续地缠绕。
3.根据权利要求1所述的感应传感器,其特征在于,作为所述第一绕组部分(6a)的第一单线圈(7a)与作为所述第二绕组部分(6b)的第二单线圈(7b)串联连接。
4.根据权利要求3所述的感应传感器,其特征在于,所述第一单线圈(7a)和所述第二单线圈(7b)被螺旋地缠绕。
5.根据权利要求1至4中任一项所述的感应传感器,其特征在于,所述两个绕组部分(6a、6b)被布置成在一个平面内彼此相邻。
6.根据权利要求1至5中任一项所述的感应传感器(1)在监视缆车***(10)的牵引缆索(13)的位置中的用途,其中所述感应传感器(1)被布置以便为静止的且以便可操作地连接至所述缆车***(10)上的所述牵引缆索(13)。
CN201880054918.0A 2017-08-25 2018-08-23 感应传感器 Pending CN111033168A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA50711/2017 2017-08-25
AT507112017 2017-08-25
PCT/EP2018/072804 WO2019038397A1 (de) 2017-08-25 2018-08-23 Induktiver sensor

Publications (1)

Publication Number Publication Date
CN111033168A true CN111033168A (zh) 2020-04-17

Family

ID=63642932

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201880054918.0A Pending CN111033168A (zh) 2017-08-25 2018-08-23 感应传感器

Country Status (11)

Country Link
US (1) US20200189622A1 (zh)
EP (1) EP3673231B1 (zh)
JP (1) JP2020530565A (zh)
KR (1) KR20200033953A (zh)
CN (1) CN111033168A (zh)
AU (1) AU2018321148B2 (zh)
CA (1) CA3073473C (zh)
ES (1) ES2883635T3 (zh)
PL (1) PL3673231T3 (zh)
RU (1) RU2735380C1 (zh)
WO (1) WO2019038397A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT522600B1 (de) * 2019-04-15 2023-03-15 Braunschmid Dipl Ing Msc Franz Flachspule für drahtlose Energieübertragung
AT522584B1 (de) 2019-05-28 2020-12-15 Innova Patent Gmbh Verfahren zum Erfassen eines Verschleißes einer Seilrolle einer Seilbahnanlage
EP4108088A1 (en) * 2021-06-25 2022-12-28 Günther Maschinenbau GmbH Sensor arrangement in a food processing machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT204596B (de) * 1958-05-06 1959-07-25 Anton Dipl Ing Dr Techn Neth Einrichtung zur Sicherung von Seilförderanlagen
JPS63165708A (ja) * 1986-12-26 1988-07-09 Makome Kenkyusho:Kk ワイヤロ−プの長さ測定装置
US5864229A (en) * 1991-06-11 1999-01-26 Millstrong Limited Eddy current probe system and method for determining the midpoint and depth of a discontinuity
US6043644A (en) * 1996-04-29 2000-03-28 Cesm Centre Suisse D'electronique Et De Microtechnique Sa - Recherche Et Developpement Device for detecting position and movement by using magnetic field variation
JP2005030836A (ja) * 2003-07-09 2005-02-03 Mitsubishi Electric Corp 変位センサおよびこの変位センサを用いたアクチュエータ
CN1614890A (zh) * 2003-11-06 2005-05-11 奥普托塞斯股份有限公司 绳索位置传感器
CN101305292A (zh) * 2005-11-08 2008-11-12 泽尔坦公司 用于电感传感器的干扰消除***
CN101975591A (zh) * 2010-09-27 2011-02-16 上海交通大学 集成磁弹性传感器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572304A (ja) * 1991-09-11 1993-03-26 Nissan Motor Co Ltd 磁気センサ
US5581180A (en) * 1991-11-29 1996-12-03 Seiko Epson Corporation Horizontal and vertical displacement detector of wire rope
US5528219A (en) * 1994-04-28 1996-06-18 Konrad Doppelmayr & Sohn Ropeway safety monitoring system
US6642711B2 (en) * 2001-01-24 2003-11-04 Texas Instruments Incorporated Digital inductive position sensor
DE102007006316B3 (de) * 2007-01-30 2008-04-10 Hima Paul Hildebrandt Gmbh + Co Kg Vorrichtung und Verfahren zur Seillageüberwachung einer seilbetriebenen Transportanlage und seilbetriebene Transportanlage
US7764169B2 (en) * 2008-03-12 2010-07-27 Eaton Corporation System for monitoring a plurality of sensors
US9841524B2 (en) * 2012-12-27 2017-12-12 Denso Corporation Metal object detection device
JP6551694B2 (ja) * 2014-08-28 2019-07-31 パナソニックIpマネジメント株式会社 異物検出装置
DE102015221342B4 (de) * 2015-10-30 2017-09-07 Ifm Electronic Gmbh Induktiver Näherungsschalter
JP5991634B1 (ja) * 2015-12-18 2016-09-14 マグネデザイン株式会社 磁気検出装置
WO2021105545A1 (en) * 2019-11-27 2021-06-03 Kone Corporation Monitoring of an elevator system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT204596B (de) * 1958-05-06 1959-07-25 Anton Dipl Ing Dr Techn Neth Einrichtung zur Sicherung von Seilförderanlagen
JPS63165708A (ja) * 1986-12-26 1988-07-09 Makome Kenkyusho:Kk ワイヤロ−プの長さ測定装置
US5864229A (en) * 1991-06-11 1999-01-26 Millstrong Limited Eddy current probe system and method for determining the midpoint and depth of a discontinuity
US6043644A (en) * 1996-04-29 2000-03-28 Cesm Centre Suisse D'electronique Et De Microtechnique Sa - Recherche Et Developpement Device for detecting position and movement by using magnetic field variation
JP2005030836A (ja) * 2003-07-09 2005-02-03 Mitsubishi Electric Corp 変位センサおよびこの変位センサを用いたアクチュエータ
CN1614890A (zh) * 2003-11-06 2005-05-11 奥普托塞斯股份有限公司 绳索位置传感器
CN101305292A (zh) * 2005-11-08 2008-11-12 泽尔坦公司 用于电感传感器的干扰消除***
CN101975591A (zh) * 2010-09-27 2011-02-16 上海交通大学 集成磁弹性传感器

Also Published As

Publication number Publication date
NZ761649A (en) 2021-03-26
AU2018321148A1 (en) 2020-03-12
AU2018321148B2 (en) 2020-09-24
PL3673231T3 (pl) 2022-01-03
CA3073473A1 (en) 2019-02-28
RU2735380C1 (ru) 2020-10-30
JP2020530565A (ja) 2020-10-22
EP3673231B1 (de) 2021-05-26
CA3073473C (en) 2022-01-04
EP3673231A1 (de) 2020-07-01
KR20200033953A (ko) 2020-03-30
ES2883635T3 (es) 2021-12-09
WO2019038397A1 (de) 2019-02-28
US20200189622A1 (en) 2020-06-18

Similar Documents

Publication Publication Date Title
JP6166227B2 (ja) 送電装置及び受電装置
KR102016192B1 (ko) 전류 검출 장치
US7965085B2 (en) Differential-mode current sensor
CN111033168A (zh) 感应传感器
US7898778B2 (en) Superconducting coil quench detection method and device, and superconducting power storage unit
WO2013118317A1 (ja) かご位置検出装置
JP6593825B2 (ja) 非接触型センサー
JP2013231720A (ja) アーク故障検出装置及び方法
CA2813933A1 (en) Apparatus and method for arc fault detection
EP2977776A1 (en) Method and device for detecting a residual current in a charging cable and charging cable using said device
US20160131682A1 (en) Current sensor arrangement
US9052350B2 (en) On-line monitoring system for use with electrical assets and method of operating the same
CN103575958A (zh) 用于测量交流电的直流分量的装置
US20190308516A1 (en) Device for inductively charging an electric vehicle, and method for detecting electrically conductive foreign bodies in such a device
US20160124025A1 (en) Current sensor arrangement with measuring coils
US20160290833A1 (en) Contactless Sensor
JP2016206054A (ja) 漏電検出装置及び漏電検出方法
KR102119553B1 (ko) 이물질 감지시스템 및 이물질 감지방법
US10389264B2 (en) Power converter
NZ761649B2 (en) Inductive sensor
CN106771691A (zh) 改良型电弧侦测装置
CN105849850A (zh) 断路器
JP6160701B2 (ja) 非接触給電システムの導電体配索構造
JP7452285B2 (ja) コイル装置
CN102207516A (zh) 用于测量在接触轨内流动的电流的测量装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200417