Claims
- 1. A pendulous accelerometer comprising:
- a housing;
- a frame fixed to said housing;
- a reaction mass disposed external to said frame and rotatable attached to said frame; and
- means for measuring a displacement of said reaction mass, wherein said reaction mass comprises an external pendulum portion and a cover fixed to said pendulum portion.
- 2. The pendulous accelerometer of claim 1 wherein said frame comprises an internal frame member spaced away from said housing and a pedestal portion extending between said housing and said internal frame member.
- 3. The pendulous accelerometer of claim 2 wherein said external pendulum portion and said internal frame member are formed of a single substrate.
- 4. The pendulous accelerometer of claim 3 wherein said cover includes a substantially planar portion disposed essentially parallel with said substrate and spaced away from said internal frame member.
- 5. The pendulous accelerometer of claim 4 wherein said cover includes a passage formed therein, said pedestal portion extending through said passage.
Parent Case Info
This application is a division of U.S. patent application Ser. No. 08/943,719 filed Oct. 3, 1997, U.S. Pat. No. 6,041,655, which claims priority from U.S. provisional application Ser. No. 60/044,034 filed Apr. 22, 1997, each of which is incorporated herein by reference.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4736629 |
Cole |
Apr 1988 |
|
4930042 |
Wiegand et al. |
May 1990 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
943719 |
Oct 1997 |
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