Patent Number: 7,732,721

Title: Nickel alloy precision force transducer with strain gauge elements

Abstract: A precision force transducer having a spring element (1) whose load-dependent deflection is converted into an electrical signal by means of strain gauge elements (10). The spring element (1) is made of a precipitation-hardenable nickel-based alloy with a nickel content in the range of 36 to 60 percent and a chromium content in the range of 15 to 25 percent. The strain gauge elements (10) are composed of a polymer-free layered film system. This makes it possible to produce a precision force transducer that features great accuracy, low creep and low moisture sensitivity.

Inventors: Mueck; Tanja (Langelsheim, DE), Relling; Volker (Bad Segeberg, DE), Schulze; Werner (Goettingen, DE), Steps; Michael (Hamburg, DE), Covic; Helga (Goettingen, DE)

Assignee: Sartorius AG

International Classification: G01G 3/14 (20060101); G01G 3/12 (20060101)

Expiration Date: 2022-06-08 0:00:00