Politylo R. Computer-assisted measuring facilities of increased exactness for the guard systems of important objects

Dissertation is devoted the questions of development of new methods of construction of the instrumentation-informative systems of guard of important objects. The variants of new ultrasonic method of guard of important objects are offered, the two channel measuring and functional transformation of sentinel parameters of the ultrasonic reflected signals, invariant to the change of temperature environments is fixed in basis of which, which enabled to decrease the errors of decision-making about violation the controlled area on an order. The new methodological error depends on the decision to breach the controlled zone of each alternative ultrasonic method and on this basis, minimizing the total measurement error of computer-based tool. The ways of the ultrasonic method on the criteria specified accuracy and ease of implementation and established principles in building a new computerized ultrasonic measuring tool. The new method of measuring of sentinel parameters of ultrasonic impulsive signals is offered, in basis of which two channel integrated transformation is fixed with the multiple delay of one of signals, that enabled anymore how on an order to promote exactness of measuring and a device is synthesized for his realization. The analytical expressions for the random error of measurement of time shifts of ultrasonic pulse signals and concludes with recommendations for its minimization.