Abstract: 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.

Abstract: A lightweight pillow tank (10) is disclosed which includes upper and lower sections (12, 14) which are secured together along a seam (22) of predetermined width (24). A sleeve extends along a mid line of the width about the entire perimeter to the seam. Suitable holes or slits (32, 36) are formed through the outer material and the sleeve to permit a rope (34) to be threaded through portions of the sleeve to form tie-down points for the tank.