SU585819A3 - Device for converting displacement to electric signal - Google Patents

Device for converting displacement to electric signal

Info

Publication number
SU585819A3
SU585819A3 SU752184351A SU2184351A SU585819A3 SU 585819 A3 SU585819 A3 SU 585819A3 SU 752184351 A SU752184351 A SU 752184351A SU 2184351 A SU2184351 A SU 2184351A SU 585819 A3 SU585819 A3 SU 585819A3
Authority
SU
USSR - Soviet Union
Prior art keywords
tube
magnets
ferrite
see
length
Prior art date
Application number
SU752184351A
Other languages
Russian (ru)
Inventor
Морис Бернин Виктор
Original Assignee
Иллинойс Тул Воркс Инк. (Фирма)
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 Иллинойс Тул Воркс Инк. (Фирма) filed Critical Иллинойс Тул Воркс Инк. (Фирма)
Application granted granted Critical
Publication of SU585819A3 publication Critical patent/SU585819A3/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00Variable inductances or transformers of the signal type
    • H01F21/02Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/08Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
    • 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
    • G01D5/2006Mechanical 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 by influencing the self-induction of one or more coils
    • G01D5/2033Mechanical 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 by influencing the self-induction of one or more coils controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
    • 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
    • G01D5/2241Mechanical 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 controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F29/146Constructional details

Claims (1)

(54) УСТРОЙСТВО ДЛЯ ПРЕОБРАЗОВАНИЯ .ПЕРЕМЕЩЕНИЯ В ЭЛЕКТРИЧЕСКИЙ СИГНАЛ ферритовой трубки показана граница раздела 6. При другом варианте выполнени  устройства (см. фиг. 2) исподызуютс  две раз-дельные ферритовые трубки, в которых провода обмоток считывани  и возбуждени  соединены таким образом, что образуют дифференциальный потенциометр. Кроме того, устройство может быть выполнено кольаеобразDOHCTJDU ти(Л UJDJ 1 о хзолли лг л.«л .v v«f-« ным (см. фиг. 3), причем полые ферритовые . трубки в нем выполнены в виде частей тора и соответственно, магниты вьгаолнены в виде частей колец. Одиночный провод обмотки 2 считывани  пропускаетс  через ферритовую трубку 1 параллельно продольной оси данной трубки. Провод обмотки 3 возбуждени  также может быть расположен в трубке 1 (см. фиг. 1), При использовании цилиндрической пустотелой трубки 1 обеспечиваетс  замкнутый путь магнитного потока вокруг провода обмотки 2 считывани  через стенки трубки. Длина трубки зависит от тип требуемой чувствительности, однако вообще длина трубки выбираетс , по крайней мере, в дес ть раз больше толщины обычных тороидальных сердечников, которые доступны дл  применени  в запоминающих устройствах на магнитных сердечниках. Длина магнитов 4 и 5 меньше длины трубки. Чем дпиинее трубка 1, тем более точным становитс  устройство. Относительное положение пары магнитов 4 и 5, примыкающих к внешней периферии стенок трубки 1, которые пол ри зуютс  противоположно, определ ет выходной сигнап, по вл ющийс  на проводе обмочу ки 2 считывани . Когда магниты 4 и 5 перемешаютс  слева направо (см, фиг. 1)ош будут насыщать все больший и больший объем трубки, В показанном на фиг. 1 положении часть А трубки 1 между магнитами 4 и 5 будет по существу насыишт.ьс  в то врем , как часть В снаружи магнитов 4,5 не будет насыщатьс . Несмотр  на некоторое насыщение в непосредственной бли- .5 ости к границе раздела 6 между част ми и В трубки 1, оно все же будет очень алым из-эа близости к магнитам 4,5 замкутого пути магнитного потока, обеспечивае. мого стенками трубки 1. Когда магниты 4 и 5 перемещаютс  влево или вправо по трубке 1, магнитно насыщаетс  соответствующа  величина объема трубки 1 так, что обеспечиваетс  индикаци  .. на сетнальной линии относительно положени  трубки 1 по отношению к магнитам 4,5. .., -,л гипттшт -хСгТтТУЧ ,tr fcjfQTMJf ТХтаКЛ tA. Г Поскольку кажда  часть трубки 1 либо полностью насыщаетс , либо почти не насыщ аетс: , устройство  вл етс  фактически свободным от воздействий температуры и старени , и оно не требует критической силы магнитного пол , котора  требуетс  в случае, если вс  структура трубки 1 частично магнитно насыщаетс  магнитами 4 и 5,ФормулаизобрЪтени  1.Устройство дл  преобразование, перемещени  в электрический сигнал, содержащее магнит, в зоне действи  которого расположена пола  ферритова  трубка, внутри которой размещены обмотки возбуждени  и считывани , отличающеес  тем, что, с целью повышени  линейности выходного сигнала и повышени  надежности устройства , в него введены дополнительный магнит, противоположно пол ризованный основному , а пола  ферритова  трубка располо-: жена между магнитами. 2 . Устройство по п. 1, отличающеес  тем, что пола  ферритова  трубка выполнена в виде части тора. Источники информации, прин тые во внимание при экспертизе: 1, Патент США № 3473381, кл. 73-313 1969, 2, Патент США № 3638221, кл, 340-365, 1972.(54) DEVICE FOR CONVERSION. DISPLACEMENT INTO ELECTRIC SIGNAL of a ferrite tube shows the boundary of section 6. In another embodiment of the device (see Fig. 2), two separate ferrite tubes are inserted in which the wires of the read and excite windings are connected in such a way that form a differential potentiometer. In addition, the device can be colloidal DOHCTJDU ty (L UJDJ 1 o xzolli lg l. "L .vv" f- "rym (see Fig. 3), with hollow ferrite tubes in it made in the form of torus parts and, accordingly, the magnets are exaggerated as parts of rings. A single wire of the read winding 2 is passed through a ferrite tube 1 parallel to the longitudinal axis of this tube. The excitation winding wire 3 can also be located in tube 1 (see Fig. 1). When using a cylindrical hollow tube 1, a closed magnetic flux path around pro The length of the winding 2 is read through the tube walls. The tube length depends on the type of sensitivity required, but in general the tube length is chosen to be at least ten times the thickness of conventional toroidal cores that are available for use in magnetic core memory devices. and 5 is shorter than the length of the tube. The smaller the tube 1, the more accurate the device becomes. The relative position of the pair of magnets 4 and 5 adjacent to the outer periphery of the walls of the tube 1, which are opposed, is There is an output signal appearing on the dredge wire 2 of the readout. When the magnets 4 and 5 are mixed from left to right (see Fig. 1), the osh will saturate the larger and larger tube volume, B shown in fig. In the 1 position, the part A of the tube 1 between the magnets 4 and 5 will be substantially full while the part B outside the magnets 4.5 will not be saturated. Despite some saturation in the immediate vicinity of the interface 6 between the parts and B of tube 1, it will nevertheless be very scarlet due to the magnets 4.5 of the closed magnetic flux path, provide. inserted by the walls of the tube 1. When the magnets 4 and 5 move left or right along the tube 1, the corresponding volume of the tube 1 is magnetically saturated so that an indication is provided on the net line relative to the position of the tube 1 with respect to the magnets 4.5. .., -, l giptstsht -khSgTTTUCH, tr fcjfQTMJf THXTACL tA. T Because each part of tube 1 is either completely saturated or barely saturates: the device is virtually free from temperature and aging effects, and it does not require the critical magnetic field strength that is required if the entire structure of tube 1 is partially magnetically saturated. magnets 4 and 5, Formula 1: A device for converting, moving into an electrical signal containing a magnet, in which the floor is located a ferrite tube, inside of which are located the excitation windings and It is characterized in that, in order to increase the linearity of the output signal and increase the reliability of the device, an additional magnet, oppositely polarized to the main one, is inserted into it, and the ferrite tube is located between the magnets. 2 A device according to claim 1, characterized in that the floor of the ferrite tube is made as part of a torus. Sources of information taken into account in the examination: 1, US Patent No. 3473381, cl. 73-313 1969, 2, US Patent No. 3638221, Cl, 340-365, 1972.
SU752184351A 1974-10-29 1975-10-29 Device for converting displacement to electric signal SU585819A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51831074A 1974-10-29 1974-10-29

Publications (1)

Publication Number Publication Date
SU585819A3 true SU585819A3 (en) 1977-12-25

Family

ID=24063390

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752184351A SU585819A3 (en) 1974-10-29 1975-10-29 Device for converting displacement to electric signal

Country Status (12)

Country Link
JP (1) JPS5721641B2 (en)
BR (1) BR7506189A (en)
CA (1) CA1031054A (en)
DE (1) DE2546487A1 (en)
ES (1) ES442157A1 (en)
FR (1) FR2289879A1 (en)
GB (1) GB1496976A (en)
IT (1) IT1043689B (en)
NL (1) NL7510875A (en)
SE (1) SE409142B (en)
SU (1) SU585819A3 (en)
ZA (1) ZA755500B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156223A (en) * 1978-04-21 1979-05-22 Illinois Tool Works Inc. Positional transducer utilizing magnetic elements
GB2273568A (en) * 1992-12-18 1994-06-22 Univ Cardiff Position transducer
DE102008063528A1 (en) * 2008-12-18 2010-06-24 Micro-Epsilon Messtechnik Gmbh & Co. Kg Sensor arrangement and method for determining the position and / or position change of a measurement object

Also Published As

Publication number Publication date
JPS5165964A (en) 1976-06-08
FR2289879A1 (en) 1976-05-28
SE7512026L (en) 1976-04-30
SE409142B (en) 1979-07-30
BR7506189A (en) 1976-08-17
DE2546487A1 (en) 1976-05-06
JPS5721641B2 (en) 1982-05-08
IT1043689B (en) 1980-02-29
AU8453275A (en) 1977-03-10
CA1031054A (en) 1978-05-09
GB1496976A (en) 1978-01-05
ES442157A1 (en) 1977-07-01
NL7510875A (en) 1976-05-04
ZA755500B (en) 1977-04-27

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