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首页> 外文会议>Saint Petersburg International Conference on Integrated Navigation Systems; 20070528-30; Saint Petersburg(RU) >METALLIC RESONATOR CVG THERMOPHYSICAL PARAMETER OPTIMIZATION AND TEMPERATURE TEST RESULTS
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METALLIC RESONATOR CVG THERMOPHYSICAL PARAMETER OPTIMIZATION AND TEMPERATURE TEST RESULTS

机译：金属谐振器CVG热物理参数优化和温度测试结果

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摘要

It is considered, that the basic disadvantages of metallic resonator CVG are their low Q-factor and high temperature sensitivity. However, modern metallurgy has created a number of unique alloys providing as high stability of alloy parameters to temperature changes and high Q-factor to realize high accuracy force rebalance CVG. For example, the temperature frequency factor (TFF) of Ni-SPAN-C alloy is about 3×10~(-6)1/℃. Alloys with Ni and Cr components and a number of other alloys possess same TFF and have higher Q-factor and temperature stability of Young modulus. The resonators made of such alloys, at special cycles of heat treatment, have Q-factor in the range 10000 - 15000. In vacuum metallic resonators increase Q-factor 2-3 times. It has been shown experimentally, that metallic resonator CVG provides accuracy from 0.1-1 deg/h. Small-sized CVG with resonator diameter 15-17 mm not using vacuum, provide accuracy of 1-5 deg/hIn spite of the fact that temperature stable alloys are used, correction of key parameters (bias and scale factor) of a gyroscope is necessary to maintain high accuracy in a wide temperature range. Therefore, for metallic resonator CVG, made of highly stable alloys the problem of temperature compensation of its parameters remains actual one.
机译：可以认为，金属谐振器CVG的基本缺点是其Q值低和温度敏感性高。然而，现代冶金学已经创造出许多独特的合金，它们提供了合金参数对温度变化的高稳定性和高Q因子，以实现高精度的力平衡CVG。例如，Ni-SPAN-C合金的温度频率因子（TFF）约为3×10〜（-6）1 /℃。具有Ni和Cr成分的合金以及许多其他合金具有相同的TFF，并且具有较高的Q因子和杨氏模量的温度稳定性。由这种合金制成的谐振器在特殊的热处理周期下，其Q因子在10000-15000范围内。在真空金属谐振器中，Q因子增加2-3倍。实验表明，金属谐振器CVG的精度为0.1-1度/小时。谐振器直径为15-17毫米的小型CVG，不使用真空，提供1-5度/小时的精度尽管使用了温度稳定的合金，但仍需要校正陀螺仪的关键参数（偏倚和比例因子）在宽温度范围内保持高精度。因此，对于由高度稳定的合金制成的金属谐振器CVG，其参数的温度补偿问题仍然是实际的。

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