Patent ID: 7467545

Claim:
A method for measuring the strength of an under-water current comprising the following steps; a. placing the measurement device under water at the desirable depth, said measurement device comprising i. a micro-processor ii. a thermistor connected to said micro-processor, iii. a thermometer, to measure the temperature of the water, connected to the said micro-processor, said thermometer might be separated from said thermistor or alternatively, said thermistor might also carry out the function of said thermometer, iv. a heat conductor exposed to said water current and connected to said thermistor by heat sensors, v. a heater to provide a constant heat supply to said heat conductor, vi. designated software for calculating all input data transferred to said micro processor and producing the output data, b. said thermometer measures the temperature of the water and transfer data to said processor, c. said thermistor measures the temperature of said heat conductor and transfer data to said processor, d. said heater heats the said heat conductor to a constant heat, e. after a fixed time, said thermistor measures the temperature of said heat conductor that is affected from said under-water current, and transfer data to said micro processor f. said micro-processor calculating all input data, obtained by steps b to e, and produces the output data, said output data includes the strength of water current, said strength of water current is obtained mainly from the difference in the temperature of the heat conductor affected from said under water current, the stronger the current the faster would be the drop in the temperature.