A NEW DESIGN OF DEADWEIGHT FORCE STANDARD MACHINE WITH SUBSTITUTE LOAD CONTROL AND SELF-CHECKING SYSTEMS
T. Allgeier, H. El-Hakeem, A. El-Sayed, B. Glöckner
Abstract:
A new dead weight force standard machine covering the range from 10 kN to 1 MN has been designed and constructed at the National Institute for Standards (NIS)-Egypt, by GTM GmbH.
This machine incorporates an electromechanical system that allows the generation of any load from 10 kN to 500 kN in steps of 5 kN with only 10 masses by selecting a suitable combination of these, while keeping the load on the transducer under calibration constant. Furthermore, it allows the generation of additional loads of up to 500 kN, so that 1 MN is reached by full deadweight action and full substitute load at the same time without significant loss of accuracy.
The forces generated by the various masses can be checked against a reference mass without any dismantling operation. The machine also serves as a precision pressure balance of a 5 MN hydraulic force standard machine. The amplification system formed is of 10:1 ratio.
The paper presents the special design features of the machine and the design considerations with a brief account of the verification of the machine. A second paper will follow to present the evaluation of the metrological characteristics of the developed machine.
Download:
IMEKO-TC3-2001-014.pdf
DOI:
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Event details
IMEKO TC:
TC3
Event name:
TC3 Conference 2001
Title:

17th Conference on Force, Mass and Torque

Place:
Istanbul, TURKEY
Time:
17 September 2001 - 21 September 2001
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