Abstract:
The article discusses ways to improve the quality and economic efficiency of the development and production of complex innovative electronic devices, which include laser gyroscopes (LGs). The problems arising in ensuring the reliable operation of the LG in a wide temperature range, associated with the dense arrangement of the device, are described. The theoretical principles and mathematical apparatus that are used in the construction of thermal models of triaxial LGs with electronics are considered in detail. A developed algorithm for constructing a thermal model of an LG, which provides for a gradual disaggregation (zooming) procedure, is presented. The process of modeling the LG using the ASONIKA system is described, the constructed thermal model of the LG is presented, as well as the thermal field of one of the printed circuit assemblies of the LG. The detected thermally loaded electronic components are indicated. The results of experimental verification of the accuracy of modeling by means of real measurements by temperature sensors of temperatures in the nodes of the model, which have confirmed the reliability of thermal modeling using the ASONIKA system, are presented. It is emphasized that the cost of manufacturing and testing LG is quite high. Therefore, the task of finding ways to reduce the cost at the stages of development and production of LG while ensuring an increase in the quality and reliability of manufactured devices is extremely urgent. Accurate thermal modeling at early stages of development is an effective way to solve this problem due to savings in testing and redesign costs, as well as due to the use of an inexpensive domestic computer simulation system ASONIKA.
