초록 ▼

The accelerometer comprising two piezoelectric transducers. A common outer seismic mass acts on both transducers and an additional seismic mass acts only on the inner transducer. The sensitivity of the two transducers and the inertial forces acting thereof are so selected that the two transducers, u

The accelerometer comprising two piezoelectric transducers. A common outer seismic mass acts on both transducers and an additional seismic mass acts only on the inner transducer. The sensitivity of the two transducers and the inertial forces acting thereof are so selected that the two transducers, under the action of an acceleration force, each deliver equal output signals. Both seismic masses are accessible for being tuned, in their assembled condition, prior to being mounted in a housing of the accelerometer. The accelerometer requires less material, is of small volume and lightweight, and is particularly suitable for being mounted in aircraft engines. It is also easy to manufacture.

대표청구항 ▼

A dual accelerometer having first and second output channels and comprising: a mounting base; a first electro-mechanical transducer having a first sensitivity; a second electro-mechanical transducer having a second sensitivity; a first seismic mass acting on both of said first and second electro-mec

A dual accelerometer having first and second output channels and comprising: a mounting base; a first electro-mechanical transducer having a first sensitivity; a second electro-mechanical transducer having a second sensitivity; a first seismic mass acting on both of said first and second electro-mechanical transducers, said first and second electro-mechanical transducers being disposed between the mounting base and said first seismic mass; and a second seismic mass disposed between said first and second electro-mechanical transducers, said first and second seismic masses and said first and second sensitivities being relatively selected so that for a common acceleration each of said first and second output channels carry signals of essentially the same value.