Densitometer

A vibration densitometer comprising:

• an electromechanical oscillator including a probe having input and output leads, and a loop circuit having an input lead connected from said probe output lead and an output lead connected from said probe input lead;
• a lower mounting body having a cylindrical passageway therethrough;
• a hollow cylindrical well;
• means mounting said well concentrically within said passageway, said probe being fixed inside said well, said probe having a vane supported near the bottom of said well;
• driver means to vibrate said vane, said driver means being located above said vane, said driver means including a cylindrical housing disposed concentrically within said well contiguous to said well;
• an upper mounting;
• a cylindrical extension fixed to said upper mounting and attached to said driver means cylindrical housing concentrically therewith and concentric with said well in spaced relation to said well;
• and an annular body positioned around said extension.