| Popis: |
To increase the accuracy the multichannel principle is used for constructing the invariant systems. The method of pressure measurement with the use of several strain gauges of different sensitivity approximated by polynomials of degree m for pressure and system n for temperature, forming a system of linear algebraic equations from the transformation functions as products of polynomials and the relative changes in resistances tenzoreristors and the system solution relative to the measured pressure Variants of devices for interrogating strain gauges at direct and alternating currents are considered. |
