초록 ▼

A transducer (700) of great sensitivity is disclosed which incorporates a magnetohydrodynamic (MHD) cell (738) exposed to the flow of a electrically conductive fluid (712) within a channel (704). Flexible diaphragms (722) form the ends of the channel (704) and deflect with the fluid motion. The defl

A transducer (700) of great sensitivity is disclosed which incorporates a magnetohydrodynamic (MHD) cell (738) exposed to the flow of a electrically conductive fluid (712) within a channel (704). Flexible diaphragms (722) form the ends of the channel (704) and deflect with the fluid motion. The deflection is sensed by strain gauges (724) and the signals from the MHD cell and strain gauges are processed. In addition, an MHD power generator is contemplated which generates power from a moving electrically conductive fluid, such as sea water in geophysical motion. A strong magnetic field is established normal the direction of fluid flow. Electrodes are positioned normal to both the magnetic field and fluid flow to complete a circuit to transfer the power generated by the movement of the electrically conductive fluid through the magnetic field.

대표청구항 ▼

A fluid transducer for sensing motion said transducer comprising: means defining a linear fluid flow channel containing an electrically conductive fluid, said channel extending in a first direction; magnetic means for establishing a magnetic field at a first position along the flow channel, said mag

A fluid transducer for sensing motion said transducer comprising: means defining a linear fluid flow channel containing an electrically conductive fluid, said channel extending in a first direction; magnetic means for establishing a magnetic field at a first position along the flow channel, said magnetic field generally perpendicular to said first direction; means for sensing perturbations in the electric field normal to the magnetic field for monitoring motion, said sensing means comprising electrode means oriented transversely with respect to said magnetic field for sensing said electrical field; and at least one pressure sensor mounted at an end of the channel and exposed to the fluid for sensing the fluid pressure exerted on said pressure sensor.