| Autor: |
G.A. Arakaki, Roman C. Gutierrez, Tony K. Tang, K. Shcheglov, J. Z. Wilcox, William J. Kaiser, C.B. Stell, J.T. Rice, I. Chakraborty, Wen J. Li, V. Vorperian |
| Rok vydání: |
1970 |
| Předmět: |
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| Popis: |
In this paper, we present recent work on the design, fabrication, and packaging of a silicon Micro-Electro-Mechanical System (MEMS) microgyroscope designed for space applications. A hermetically sealed package that houses the microgyroscope and most of its control electronics has been built and tested. The entire microgyroscope package is approximately 1/spl times/1/spl times/0.7 inches in dimensions. The rest of the control electronics which includes the drive and lock-in amplifier circuitry are mounted outside the gyro box on a 1/spl times/1 inch circuit board. This packaged microgyroscope has a 7 Hz split between its drive and sense mode and has a scale factor of 24 mV/deg/sec, bias stability of 70 deg/hr, angle random walk of 6.3 deg//spl radic/hr, and a rate ramp of 0.2 deg/hr/sec. Recent improvements on the fabrication and assembly procedures and microgyroscope design have resulted in clover-leaf structures with matched drive and sense resonant frequency. These new structures have a very small temperature dependent frequency shift of 0.23 Hz/degree for both the drive and sense modes. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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