Hauchs elektrometer

Danish Instrument Inventory text:

Electrometer. Hauch's discharge. Oak base 320x105x30. 2 glass pillars Dia22 L200 and L260. Balance beams on each with brass fittings and knife edge fulcrums. The beam at the smaller pillar has a glass pan at one side and a brass arm with sliding weight at the other. The beam on the larger pillar has at one side a glass arm with sliding ivory weight (a suspended pan is missing), and at the other side a brass arm ending in brass sphere. The electrostatic repulsing force act between this sphere and a fixed sphere. Interaction between the two balance beams multiplies the movements of the contact points, and gives, according to Hauch, more independence of atmospheric conditions.Ref: Videnskabernes Selskabs Skrifter vol IV, Copenhagen 1792. Encyclopaedia Londinensis vol 6, London 1810. Edinburgh Encyclopaedia vol 8, 1830.Not signed.c1792

• Category: Electricity
• Hauch number: K106
• Inventory number: 6960
• Danish Instrument Inventory number: 1722

• Hauch references:
• Begynd.grund: §528
• Cabinet 1: 0 47

• Literature:

• Hauch(1791)
  

  Hauch(1795c)
  

  Gehler(1787-96) V p.1045
  

  Schrader(1797) p.229
  

  Hauch(1799c)
  

  Fischer(1798-1827) II p.100 (fig.34)
  

  Encyclopaedia Londinensis vol. 6, London 1810
  

  Edinburgh Encyclopaedia vol. 8, 1830