用仪表测量
3.This thesis adopted the method that created mathematics pattern of the soft measurement in the baume degrees of black liquor,and indirectly converted into the baume degrees of black liquor by measuring pressure and temperature. It gave the method of revising the pattern parameter and the pattern,and designed the cascade control system for the baume degree of black liquor which used S7-200 PLC to implement the measuring instrument and control the system.
4.General Model C38 DC meters are portable taut-band suspended moving coil instruments with light-spot indication.The meters have the feature of extremely high in sensitity and small in consumpition being particularly suitable to be used for measuring weak electric quantity on DC circututs,also for testing the static paramenters of transistors as well for measuring the output of millivolt values of zhermocouple in the vacuun furnaces(or hydrogen furnaces ).
5.The total uncerntainty of conventional dose value given by MCD-100 type ionization chamber, with air-attenuation and backscattering corrected, is unlikely more than ±2.5% for filtered X-ray, ±1.5% for ~(137)Cs and ~(60)Co γ -radiation respectively.
