References: [1] www.AutoMatic-Project.eu [2] www.mgu.bg/drugi/ebooks/tokmak/2_1.pdf [3] http://dtnpe.tu-sofia.bg/uploads/materials/ITHMV.pdf [4] Metrology and Measuring Equipment, Volume 2 - edited by Prof. Hristo Radev, Sofia, Softrade, 2010. [5] Feedback Instruments Ltd - Manuals 2942, 342A/B, EEC 470/1/2/3/4/7, UK, 1996. [6] Measurement Systems: Application and Design – 5-th ed. (McGraw-Hill Series in Mechanical and Industrial Engineering), Author: Ernest O. Doebelin, 2004. [7] The Measurement, Instrumentation and Sensor, John G. Webster, 1999 by CRL Press LLC. |