Download Mechanical Problems in Measuring Force and Mass: Proceedings by Daniel Girard (auth.), H. Wieringa (eds.) PDF

By Daniel Girard (auth.), H. Wieringa (eds.)

Nowadays electric strength transducers, within which numerous electric conversion rules are utilized, are commonly used. Transducers for forces from 1N until 10 MN are commercially to be had and used for commercial in addition to learn reasons. They not just serve to degree forces but additionally for weighing reasons. at once changing a strength into an electric sign isn't really attainable. This has to be performed step-by-step. for example, in a pressure gauge established transducer the conversion chain is: strength - pressure - pressure - resistance switch - bridge output. At each conversion aspect during this chain parasatic affects can intervene with the consequences and will reason a loss in accuracy. To surmount the issues with regards to acquiring enough accuracy and reliability for those transducers, a lot study has been performed allover the realm long ago 35 years. hence, new fabrics, new options, better constructional designs and repayment circuits were came across to beat the parasitic affects. the item of the IMEKO meetings on behalf of the Technical Committee on dimension of strength and Mass (TC-3) is to replace reviews, to debate difficulties and to procure wisdom approximately functional purposes. during this booklet the papers were accrued that might be mentioned on the eleventh foreign convention on dimension of strength and Mass. the subject of this convention is "Mechanical difficulties in Measuring strength and Mass".

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Extra resources for Mechanical Problems in Measuring Force and Mass: Proceedings of the XIth International Conference on Measurement of Force and Mass, Amsterdam, The Netherlands, May 12–16, 1986 Organized by: Netherlands Organization for Applied Scientific Research (TNO) on

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F a s e r 0 p tis c he Wega u f n e h mer a 1 s Grun del em e n t e fUr Sensoren, Automatisierungstechnische Praxis, Heft 3, S. 117-123, und Heft 4, 178-183 (1985). 7. : Use of fiber optical components as active sensors in dynamical material testing, 2nd Internat. Technical Symposium on Optical and Electro-Optical Applied Science and Engineering, Cannes (Nov. 1985). 8. : Optical fiber pressure sensor using a shutter modulator and two-wavelength intensity referencing, 2nd Internat. Conference on Opt.

This provides a voltage proportional to the force F a p p 1 i edt 0 the can til eve r. The sum s i g n a 1 S+ = t· (A + B ) , wit h t being another scaling factor, provides a voltage proportional to the temperature at the sensor. Fig. lOa) shows the sensor signals U(FFP1) and U(FFP2) as a force F of about 2 N is periodically applied to the cantilever for a time interval of 10 seconds. e. optical length n·L of the FFP. This simulation has been achieved by a drift component in the laser diode injection current which produces a drift in wavelength and hence a net increase in the interference order of both FFP resonators.

7(b) to (d). The applied load and the maximum deformation are shown by a thick arrow and a thin arrow respectively. For this analysis, the FEM program developed by Hitachi Laboratory of Hitachi Ltd. was used. This program was furnished with a special function to display minute deformations in enlarged form together with a total model with a nonlinear scaling. According to its rule, the maximum deformation of each calculated model is shown as the same dimension in each figure. 7 is different. 7, the maximum deformations of the PPS model by moments Mx and My are the same order as the one by a force Fz when the force is 10kgf and the moment is lkgf-m.

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