journal The scientific articles that is created on new developments results at the field of a theory and practice of modern precision instrument-making are published in bulletin, from the questions of general issues of science and engineering of instrument-making, in particular navigation devices and systems, optically-ele ctronic and digital treatment of signals, analytical and ecological instrument-making. The articles of Editorial Board members and invited experts are reviewed. Materials of the articles are edited. JOURNAL’S RUBRICATOR Theory and practice of modern precision engineering Theory and practice of navigation devices and systems Methods and optical-electronic systems for digital signal processing Monitoring and diagnosis of processes and systems in instrument design Analytical and environmental engineering Scientific and practical problems of production equipment and systems Highly technological processes in the instrument design and engineering Automation and intellectualization in instrument desing Devices and systems of biomedical technologies Hypotheses. Non-standard methods for solving scientific and engineering problems in engineering