SU736005A1

SU736005A1 - Electric measuring device

Info

Publication number: SU736005A1
Application number: SU772476452A
Authority: SU
Inventors: Андрей Леонидович Шпади
Original assignee: За витель (И) | Т 5 j
Priority date: 1977-04-12
Filing date: 1977-04-12
Publication date: 1980-05-25

Description

(54) ЭЛЕКТРОИЗМЕРИТЕЛЬНЫЙ ПРИБОР(54) ELECTRIC MEASURING DEVICE

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Изобретение относитс к электроизмерительной технике и может быть использовано дл оператиЕшого контрол и измерени различных величин в цеп х носто нного тока.The invention relates to electrical measuring equipment and can be used to efficiently monitor and measure various quantities in a neutral current circuit.

Известны электроизмерительные приборы на магнитной жидкости, у которых нолюсы электромагн1 та образованы магнитно; жидкостью , размеи 1енной в зазорах вспомогательных полюсов носто нных магнитов, образующих клиновидные камеры, частично заполненные до прозрачной стенки отсчетного устройства немагнитной прозрачной жидкостью с плотностью, близкой к плотности магнитной жидкости 1.Electrical measuring instruments on magnetic fluid are known, in which the electromagnet zeroes are formed magnetically; liquid, the dimensions 1 in the gaps of the auxiliary poles of the nano-magnets forming the wedge-shaped chambers, partially filled to the transparent wall of the reading device by a non-magnetic transparent liquid with a density close to the density of the magnetic fluid 1.

Дл коррекции и линеаризации шкалы таких приборов в магнитопроводе электромагнита выно.лнены отверсти различного диаметра.For the correction and linearization of the scale of such devices in the magnetic circuit of the electromagnet, holes of various diameters were drawn.

Однако такие приборы не чувствительны к изменению направлени измер емого тока и обладают значительными погрешност ми, возникающими от наклонов и ускорений, а также имеют низкие чувствительность и нагл дность отсчета.However, such devices are not sensitive to a change in the direction of the measured current and have significant errors arising from inclinations and accelerations, and also have low sensitivity and accuracy of reference.

Цель изобретени - расширение функциональных возможностей прибора за счетThe purpose of the invention is to expand the functionality of the device due to

определс1П1 пол рности, noBi,inieiuic чктвнтельности и точности, а также уирошешю. Иоставленнаи ne;ib достигаетс тем. в э, ектроиз ерпто,П)Ном , содсржаше магнптоэ,1ектрический преобразовате.чь с маг} итно1 Хчпдкостью и отсчегное CTixinство . маг1-;ит(«.1ектр11ческ1|й преобразонатс.чь выполнен в виде э,1астпчной . в i oi4v1 1the definitions of polarity, noBi, inieiuic sensitivity and accuracy, as well as iroshuyu. The resulting ne; ib is achieved by that. in e, ectroise epto, P) Nome, including magnptoe, 1extric transformer with mag} itno1 chchdkoi and otstsegnoe CTixinism. mag1-; it (". 1ktr 11chesk1 | th preobrazovanchach. made in the form of e, 1astpchnoy. in i oi4v1 1

10 телып ми катучнкамн, разде,1енными акспально намагьшченным ксхтьцо.м, а отсчетное устройство В1, в виде замкн)-т():о упом нутой эластичной трубкой нроз)ачног( капилл ра с расюложепным в HCN набором индпкаторных меток в виде последоватс,:)15 ности разноцветных несме1ниваюии;хс жи.костеи .10 telypas katuchnkamn, section, by the veneer axially magnetized xxx.m., and the reading device B1, in the form of a closed) -t (): about the mentioned elastic tube nroz) acnog (capillary with a different set of indicator tags in the form of a sequence, :) 15 of the multicolored nesmeyuyuyai; xc zhi.kostei.

bia чертеже показан схемат ческш прибор.bia drawing shows a schematic of a chesxh appliance.

1рибор содепн-; Г1 магнитоэлектрический 1 device sodep-; G1 magnetoelectric

Claims

20 psvobra15at1m with podppzhno magstno zhndkokk) 1. kog (): 1a is held in iieiiTre e.1astichnoG | pipe :: 2; 1, 1 by permanent magnet in the form of ax.: 1) BUT and a iaunnchenoro kol1.tsa 3. location)) -) ii: i composite i profiled frame 4 between two counter-activated measuring coils 5 and 6. The ends of an elastic, e.g. plastic, tube 2 are connected to the ends of a transparent, e.g. glass capillary pa 7 reading device with a digitized scale and ontic indicator in the zide set of indicator marks 8 and a permissible value of 9 1-; measured current, which is after the first; the multicolored immiscible liquid Tei, e.g., oil droplets and nodkrap1ennogs1 antifreeze solution stuffing capillary reading device 7. When the measured current of a certain polarity is passed through the oppositely connected measuring cathodes 5 and 6, their magnetic fields are stored at one of the software / 1USOV of an axially numbered co,: 3d 3, and from the other - subtracted. Therefore, the magnetic fluid 1, the powerful role of the hydraulic norns and the moving core, is mixed in the direction of a stronger field, while simultaneously mixing indicator marks 8 and 9 in the capillary 7 of the reading device. Since the magnetic fluid 1 does not touch the walls of the capillary 7, the wetting and contamination of the reading device is eliminated, and due to the large ratio of cross-sectional area of the elastic tube and the cap of the tube 7, the linearity and sensitivity of the magnetic fluid is reached. . With an excessive increase in the measured current, the indicator mark 8 of the current value mixes beyond the HI channel and, in the operator’s view, the corresponding color of the indicator falls into the acceptable value of 9 measured current, the final position of which is determined by the distribution of the turns of the measuring coils in the section :) of the first frame 4. After removing the measured current, the magnetic fluid 1 again is connected to the center of axially pinned ring 3, the role of the return spring, and all indicator marks 8 and 9 are returned to their original state. Due to the use of a capillary reading device with a hydraulic amplifier of movements of multi-colored indicator marks, a high sensitivity is achieved; inside the elastic tube and counter-connected measuring coils with axi; 1m magnetized by a rod, provides an indication of the sign of the flowing current and the bulk thermal ompensatsiyu device that is using it OAPC on nestantsionngh objects, motor vehicles, ships and aircraft x shiroko.m temperatures, vibrations and accelerations. Claim of the Invention Electrical measuring instrument comprising a magnetoelectric transducer with a magnet liquid and a reading device, characterized in that, in order to discern fu and phytopic possibilities due to the determination of the pianoforte.), Increase sensitivity and accuracy, as well as simplified 1nit () electrically and the transducer is made in the form of an elastic tube in which a magnetic fluid is placed, and on which is a profiled frame with two oppositely connected measuring coils, separated an axially magnetized ring, and the reading device is made in the form of a transparent capil closed by the above-mentioned elastic tube, with 1) a set of indicator labels in the form of an aftertask in a pattern of 1–1-1mtrined fluids. Sources of information, cyptye into account during the examination 1.. Author's testimony of the USSR L 473098, cl. G 01 R 5;) 0. 1973. -5 4 O. 1 2 3 4 5 +