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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-11459</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/11459</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Без раздела</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Without section</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Auto-reduction optical plummet with a liquid lens</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Авторедукционный оптический отвес с жидкостной линзой</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Gusev</surname>
            <given-names>N. A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Гусев</surname>
              <given-names>Н. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Gusev</surname>
              <given-names>N. A.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Ленинградский горный институт (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Leningrad Mining Institute (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1975-01-01">
        <day>01</day>
        <month>01</month>
        <year>1975</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1975</year>
      </pub-date>
      <volume>67</volume>
      <issue>1</issue>
      <fpage>231</fpage>
      <lpage>235</lpage>
      <history>
        <date date-type="received" iso-8601-date="1974-07-23">
          <day>23</day>
          <month>07</month>
          <year>1974</year>
        </date>
        <date date-type="accepted" iso-8601-date="1974-09-11">
          <day>11</day>
          <month>09</month>
          <year>1974</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1975-01-01">
          <day>01</day>
          <month>01</month>
          <year>1975</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1975 Н. А. Гусев</copyright-statement>
        <copyright-statement xml:lang="en">© 1975 N. A. Gusev</copyright-statement>
        <copyright-year>1975</copyright-year>
        <copyright-holder xml:lang="ru">Н. А. Гусев</copyright-holder>
        <copyright-holder xml:lang="en">N. A. Gusev</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/11459">https://pmi.spmi.ru/pmi/article/view/11459</self-uri>
      <abstract xml:lang="ru">
        <p>Современные оптические теодолиты обычно снабжаются расположенными на алидадной части или на подставке оптическими отвесами, которыми пользуются для центрирования теодолита над вершиной измеряемого горизонтального угла. ...</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Modern optical theodolites are usually provided with optical plummets located on the alidade part or on the base, which are used to center the theodolite over the vertex of the horizontal angle being measured. …</p>
      </abstract>
    </article-meta>
  </front>
  <body/>
  <back>
    <ref-list>
      <ref id="ref1">
        <label>1</label>
        <mixed-citation xml:lang="ru">Гусев Н.А. Маркшейдерско-геодезические инструменты и приборы. Недра, 1968.</mixed-citation>
        <mixed-citation xml:lang="en">Gusev N. A. Mine Surveying and Geodetic Instruments and Devices. Nedra, 1968 (in Russian)</mixed-citation>
      </ref>
      <ref id="ref2">
        <label>2</label>
        <mixed-citation xml:lang="ru">Захаров А.И., Зуйков И.И. Теодолиты средней точности и оптические дальномеры. Недра, 1965.</mixed-citation>
        <mixed-citation xml:lang="en">Zakharov A. I., Zuykov I. I. Medium-Accuracy Theodolites and Optical Rangefinders. Nedra, 1965 (in Russian)</mixed-citation>
      </ref>
      <ref id="ref3">
        <label>3</label>
        <mixed-citation xml:lang="ru">Drodofsky М. Zeitschrift für Vermessungs. Н. 4, 1960.</mixed-citation>
        <mixed-citation xml:lang="en">Drodofsky M. Zeitschrift für Vermessungswesen. No. 4, 1960</mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>
