PL73062B2 - - Google Patents

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Publication number
PL73062B2
PL73062B2 PL15623972A PL15623972A PL73062B2 PL 73062 B2 PL73062 B2 PL 73062B2 PL 15623972 A PL15623972 A PL 15623972A PL 15623972 A PL15623972 A PL 15623972A PL 73062 B2 PL73062 B2 PL 73062B2
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PL
Poland
Prior art keywords
resistor
series
diode
capacitor
voltage
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Application number
PL15623972A
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Polish (pl)
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Priority to PL15623972A priority Critical patent/PL73062B2/pl
Publication of PL73062B2 publication Critical patent/PL73062B2/pl

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Description

Pierwszenstwo: Zgloszenie ogloszono: 30.05.1973 Opis patentowy opublikowano: 30.12.1974 73062 KI. 21e,19 10 MKP GOlr 19/10 CZYTELNIA Urzedu PoLerW^ego Polskiej |w i Twórca wynalazku: Edmund Markowski Uprawniony z patentu tymczasowego: Wyzsza Szkola Morska, Gdynia (Polska) Uklad woltomierza prostownikowego do pomiaru napiecia przemiennego Przedmiotem wynalazku jest uklad woltomierza prostownikowego do pomiaru napiecia przemienne¬ go w szczególnosci do pomiaru róznic napiecia od nastawionej wartosci.Znane sa uklady elektryczne do pomiaru napiecia przemiennego zaopatrzone w skokowa zmiane za¬ kresu pomiarowego, przykladowo woltomierze pro¬ stownikowe lub elektromagnetyczne.Znane i stosowane woltomierze prostownikowe z prostowaniem linearnym dwupolówkowym, któ¬ rych odchylenie jest proporcjonalne do róznicy la¬ dunków zgromadzonych na dwóch kondensatorach, nie maja mozliwosci doboru dolnej lub górnej war¬ tosci zakresu pomiarowego. Ponadto woltomierze prostownikowe wykazuja szereg wad a mianowicie maja nierównomierna podzialke, charakteryzuja sie znacznym wplywem temperatury otoczenia na od¬ chylenie miernika i maja niewielki zakres pomiaru.Woltomierze elektromagnetyczne z zageszczona podzialka na poczatku zakresu pomiarowego, sa klo¬ potliwe przy projektowaniu i wykonaniu ze wzgle¬ du na trudnosci z doborem materialu i ksztaltu ele¬ mentu forromagnetycznego. Wykonanie miernika o zadanym zakresie pomiarowym i mozliwie rów¬ nomiernej podzialce, wymaga dlugotrwalego i zmud¬ nego eksperymentowania w warunkach laboratoryj- no-warsztatowyeh.Celem wynalazku jest wyeliminowanie wskaza¬ nych wad znanych woltomierzy prostownikowych i elektromagnetycznych oraz zaprojektowanie ukla- 2 du dajacego szersze niz dotad mozliwosci doboru za¬ równo dolnej jak i górnej wartosci zakresu pomia¬ rowego.Zalozony cel spelnia uklad pomiarowy wedlug 5 wynalazku dzieki temu, ze ma skojarzone ze soba dwa obwody rezystancyjno-pojemnosciowe pradu przemiennego. Jeden z obwodów zasilany dodatnia polówka mierzonego napiecia, zawiera diode wspól¬ pracujaca z szeregowo polaczonym kondensatorem io i rezystorem, a drugi obwód zasilany ujemna po¬ lówka mierzonego napiecia zawiera podobnie diode wspólpracujaca z szeregowo polaczonym kondensa¬ torem i rezystorem, przy czym jego kondensator jest zbocznikowany dioda Zenera. Do krancowych zaci- xg sków szeregowo polaczonych kondensatorów wcho¬ dzacych w sklad obydwu obwodów przylaczony jest miernik magnetoelektryczny zabezpieczony rezysto¬ rem dodatkowym o rezystancji dostosowanej do czu¬ losci tego miernika. 20 Uklad wedlug wynalazku spelnia równiez zalozo¬ ny cel, dzieki temu ze kondensatory w obydwu jego skojarzonych obwodach sa zbocznikowane diodami Zenera o róznych napieciach przebicia.Przedmiot wynalazku jest szczególowo przed- 25 stawiony na przykladach jego wykonania i zobra¬ zowany na rysunku, na którym przedstawiono sche¬ mat elektryczny ukladu woltomierza prostowniko¬ wego do pomiaru napiecia przemiennego.Uklad wedlug wynalazku zawiera jeden lub dwa 30 skojarzone ze soba obwody pradu przemiennego przy 7306273 062 czym przynajmniej jeden z tych obwodów zawiera diode Zenera. Jeden z obwodów, zasilany dodatnia polówka mierzonego napiecia U zawiera diode Dl, wspólpracujaca z szeregowo polaczonym kondensa¬ torem Cl i rezystorem R2. Podobnie zestawiony dru¬ gi obwód, zasilany ujemna polówka mierzonego na¬ piecia U, zawiera diode D2 wspólpracujaca z kon¬ densatorem C2 i rezystorem Rl. Kondensator C2 w tym obwodzie jest dodatkowo zbocznikowany dio¬ da Zenera D3. Do krancowych punktów A i B sze¬ regowo polaczonych kondensatorów Cl i C2 wcho¬ dzacych w sklad skojarzonych obwodów, przylaczo¬ ny jest znany miernik magnetoelektryczny M za¬ opatrzony korzystnie w rezystor R o rezystancji wy¬ nikajacej z czulosci miernika.Uklad wedlug drugiego przykladu wykonania wy¬ nalazku, jest zaopatrzony w dwie diody Zenera o róznych napieciach przebicia bocznikujace kon¬ densatory Cl i C2.Uklad wedlug innej odmiany wykonania wynalaz¬ ku jest zaopatrzony w diody wstawione w miejsce re¬ zystorów Rl i R2. Dobór zakresu pomiarowego w ukladzie wedlug wynalazku jest uzalezniony od doboru napiecia przebicia diody Zenera oraz para¬ metrów kondensatorów, rezystorów i miernika. PL PLPriority: Application announced: May 30, 1973 Patent description was published: December 30, 1974 73062 KI. 21e, 19 10 MKP GOlr 19/10 READING ROOM OF THE POLISH OFFICE OF POLAND Inventor: Edmund Markowski Authorized by the temporary patent: Wyższa Szkoła Morska, Gdynia (Poland) Rectifier voltmeter system for measuring alternating voltage The subject of the invention is a rectifier voltmeter system for measuring AC voltage, in particular for measuring voltage differences from the set value. There are electrical systems for measuring alternating voltage equipped with a step change of the measuring range, for example, voltmeters or electromagnetic voltage meters. Known and used rectifier voltmeters with linear double-line rectification, which Since the deviation is proportional to the difference of the charges accumulated on two capacitors, it is not possible to select the lower or upper value of the measuring range. In addition, rectifier voltmeters show a number of disadvantages, namely they have an uneven division, are characterized by a significant influence of the ambient temperature on the meter deviation and have a small measuring range. Electromagnetic voltmeters with a concentrated scale at the beginning of the measuring range, are problematic in design and construction due to relative due to the difficulties with the selection of the material and the shape of the phromagnetic element. The implementation of a meter with a given measuring range and possibly even division requires a long and tedious experimentation in laboratory and workshop conditions. The aim of the invention is to eliminate the indicated disadvantages of known rectifier and electromagnetic voltmeters and to design a grid that gives a wider than So far, it is possible to select both the lower and the upper value of the measuring range. The aim is fulfilled by the measuring system according to the invention due to the fact that it has two AC resistance-capacitive circuits associated with each other. One of the circuits powered by the positive half of the measured voltage contains a diode working with the series-connected capacitor and resistor, and the other circuit powered by the negative half of the measured voltage contains a similar diode working with the series-connected capacitor and resistor, its capacitor being bypassed zener diode. A magnetoelectric meter protected with an additional resistor with a resistance adjusted to the sensitivity of the meter is connected to the terminal terminals of the series-connected capacitors which are part of both circuits. The system according to the invention also fulfills the intended purpose, thanks to the fact that the capacitors in both its associated circuits are bypassed with Zener diodes with different breakdown voltages. The subject of the invention is illustrated in detail on the examples of its implementation and illustrated in the drawing, in which an electrical diagram of a rectifier voltmeter system for measuring an alternating voltage is shown. The circuit of the present invention comprises one or two associated alternating current circuits at 7306273 062, at least one of these circuits containing a zener diode. One of the circuits, fed by the positive half of the measured voltage U, contains a diode D1 which works with a capacitor C1 and a resistor R2 connected in series. Similarly, the second circuit, powered by the negative half of the measured voltage U, contains the diode D2 cooperating with the capacitor C2 and the resistor R1. The capacitor C2 in this circuit is additionally bypassed by the zener diode D3. A known magnetoelectric meter M is connected to the terminal points A and B of the series connected capacitors C1 and C2, which are part of the associated circuits, preferably provided with a resistor R having a resistance resulting from the sensitivity of the meter. According to another embodiment of the invention, it is provided with two Zener diodes with different breakdown voltages shunting capacitors C1 and C2. According to another embodiment of the invention, the system is provided with diodes inserted in place of the resistors R1 and R2. The selection of the measuring range in the system according to the invention depends on the selection of the breakdown voltage of the Zener diode and the parameters of the capacitors, resistors and the meter. PL PL

Claims (2)

1. Zastrzezenia patentowe 1. Uklad woltomierza prostownikowego do po¬ miaru napiecia przemiennego majacy dwa skoja- 10 rzone ze soba obwody rezystancyjno-pojemnosciowe z których jeden obwód zasilany dodatnia polówka mierzonego napiecia, zawiera diode wspólpracujaca z szeregowo polaczonym kondensatorem i rezysto¬ rem, a drugi obwód zasilany ujemna polówka mie- 19 rzonego napiecia, zawiera diode wspólpracujaca z szeregowo polaczonym kondensatorem i rezysto¬ rem oraz zawierajacy miernik polaczony szeregowo z rezystorem, znamienny tym, ze kondensator (C2) jest zbocznikowany dioda Zenera (D3). 201. Claims 1. A rectifier voltmeter system for measuring AC voltage having two associated resistive-capacitive circuits, one of which is powered by the positive half of the measured voltage, contains a diode working with a series-connected capacitor and resistor, and the second circuit fed with the negative half of the measured voltage, comprises a diode for a series connected capacitor and resistor and a meter connected in series with the resistor, characterized in that the capacitor (C2) is bypassed by a zener diode (D3). 20 2. Uklad wedlug zastrz. 1, znamienny tym, ze kondensatory (Cl, C2) sa zbocznikowane diodami Zenera o róznych napieciach przebicia. PZG Bydg., zam. 3216/74, nakl. 125+20 egz. Cena 10 zl PL PL2. System according to claim The process of claim 1, characterized in that the capacitors (C1, C2) are bypassed with zener diodes with different breakdown voltages. PZG Bydgoszcz, residing in 3216/74, pp. 125 + 20 copies Price PLN 10 PL PL
PL15623972A 1972-06-24 1972-06-24 PL73062B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15623972A PL73062B2 (en) 1972-06-24 1972-06-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL15623972A PL73062B2 (en) 1972-06-24 1972-06-24

Publications (1)

Publication Number Publication Date
PL73062B2 true PL73062B2 (en) 1974-08-31

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Application Number Title Priority Date Filing Date
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PL (1) PL73062B2 (en)

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