Morehouse UCM - Design; Reference Standard

Universal Calibrang Machine
(UCM) Manual
(PM-5201)
Morehouse Instrument Company, Inc.
1742 Sixth Ave., York, PA 17403-2675 USA
Phone: (717) 843-0081
www.mhforce.com
Page 5
Rev. 3/2024
1.3 Design
The design of the machine has one purpose: low uncertainty. The force the calibrang machine produces is
transferred directly to the unit under test without any machine loss or mechanical interference. Fricon be-
tween the reference standard and the unit under test has been eliminated. This is essenal because even slight
fricon, which is inherent in other types of calibrang machines, frequently results in gross errors. Non-axial
loading, another potenal error source, is eliminated by the design of the machine and its accessories.
1.4 Reference Standard
While a reference standard, such as a load cell, is essenal to calibraon, it is not supplied as part of the
Universal Calibrang Machine. The reference standard is always loaded in compression whether performing a
tension or compression calibraon.
Figure 2: Morehouse Ultra-Precision Load Cell