Physikalisch-Technische Bundesanstalt

O Physikalisch-Technische Bundesanstalt (PTB) e o instituto nacional de metrologia da Alemanha. Tem como objetivos o desenvolvimento da metrologia para as ciências, a técnica e a sociedade. Foi fundado em 1887.

O PTB tem duas sedes principais, em Berlim e Braunschweig.

História

O PTB foi criado originalmente em 1887 com a denominação Physikalisch-Technische Reichsanstalt (PTR), Instituto Imperial de Física e Tecnologia, em Charlottenburg, por iniciativa de Werner von Siemens, Hermann von Helmholtz e Karl Heinrich Schellbach.

Até 1934 permaneceu sob a supervisão do Reichsinnenministerium, Ministério do Interior do Reich, e a partir de então do Reichserziehungsministerium, Ministério da Educação do Reich. Atualmente é subordinado ao Ministério da Economia e Tecnologia da Alemanha.

Presidentes

Presidentes do PTB e do Physikalisch-Technische Reichsanstalt (Berlim-Charlottenburg):[1]

  1. a partir de 1888: Hermann von Helmholtz, Presidente Fundador
  2. 1895–1905: Friedrich Kohlrausch
  3. 1905–1922: Emil Warburg
  4. 1922–1924: Walther Nernst
  5. 1924–1933: Friedrich Paschen
  6. 1933–1939: Johannes Stark
  7. 1939–1945: Abraham Esau
  8. 1945: por pouco tempo até a extinção do PTR Wilhelm Steinhaus
  9. 1947: Refundação em Braunschweig, presidente interino Martin Grützmacher
  10. 1948–1950: Wilhelm Kösters
  11. 1951–1961: Richard Vieweg
  12. 1961–1969: Martin Kersten
  13. 1970–1975: Ulrich Stille
  14. 1975–1995: Dieter Kind
  15. 1995–2011: Ernst Otto Göbel
  16. a partir de 2012: Joachim Ullrich[2]

Referências

Ligações externas

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