ANALYSIS ON THE EFFECTS OF STIFFNESS IN MASS MEASUREMENT USING RELAY FEEDBACK OF DISPLACEMENT
Takeshi Mizuno, Yuji Ishino, Masaya Takasaki
Abstract:
This paper treats a relay-feedback mass measurement system that uses a relay with dead zone and feeds back the displacement of the object. The efficacy of the proposed method has been already confirmed experimentally. In actual measurement, however, the object to be measured was guided by a spring for avoiding rotation. The effect of stiffness produced by this spring on mass estimation has not been investigated analytically. In this paper, an estimating equation including this effect is derived. The derived equation indicates that the estimated mass is smaller than the actual one when the conventional estimating equation is used. The experiments carried out in the fabricated apparatus support well the validity of the derived estimating equation.
Keywords:
mass measurement, relay feedback
Download:
IMEKO-WC-2009-TC3-077.pdf
DOI:
-
Event details
Event name:
XIX IMEKO World Congress
Title:

Fundamental and Applied Metrology

Place:
Lisbon, PORTUGAL
Time:
06 September 2009 - 11 September 2009
 Back