The development and characterization of a square ring shaped force transducer

Abstract

Though various types of force transducers have been developed over many years, research is continuing through the globe regarding the development of different types of force transducers. The present paper discusses the development of square ring shaped force transducers and their metrological characterization based on the calibration procedures according to standards ISO 376:2004 and IS: 4169-1988 (reaffirmed 2003). The force transducers have been developed as a modification of ring shaped force transducers and strain gauges have been mounted on suitable locations. The force transducers have been studied analytically and computationally. The force transducers are found to have good metrological characteristics and further efforts are being focused on improving the metrological characteristics of force transducers.

Investigations on metrological characterization of elliptical shaped force transducers for precision force measurement

“…The uncertainty of measurement of elliptical shaped force transducer is found to be either very close or better to the uncertainty of measurement of such force transducers e.g. ring shaped force transducer (Kumar and Sharma 2012 a), hexagonal ring shaped force transducer and square ring shaped force transducer (Kumar et al 2013) are found to have uncertainty of measurement up to 0.10 (k=2), while the elliptical shaped force transducer is found to have uncertainty up to 0.10 (k=2), while taking suitable factors into account. Square ring shaped force transducer's metrological performance has not been tabulated as it has been developed only for 1 kN nominal capacity.…”

“…The ring shaped force transducers have been calibrated according to the standard procedure like ISO 376 and it is found that uncertainty could be about 0.025 % (excluding relative uncertainty due to hysteresis) and up to 0.10 % (including relative uncertainty due to hysteresis). Suitable discussion pertaining to different metrological characteristics has already been made by researchers (Kumar et. al., 2013).…”

“…The different factors pertaining to the uncertainty of measurement of the force transducer are listed below. The factors have been mentioned earlier somewhere else (Kumar et al, 2013). The uncertainty of measurement of the force transducer is evaluated by computing the relative uncertainty due to the factors mentioned above depending upon their applicability to the calibration procedure used, as follow:…”

Design, development and metrological characterization of a low capacity precision industrial force transducer

“…Ring shaped force transducers have been modified to square ring shaped force transducer for higher capacity [11].…”

“…The uncertainty of measurement is an indication of reliability and stability of the results reproduced by any force transducer. The uncertainty of the measurement of the force transducer has been evaluated on the basis of standard guidelines [11,12]. The sequence of the calibration procedure is as follow:…”