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Home | Basket and experiments |
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The radio-transmitter called Kiwi, lent by the CNES
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Description and Functionning - It's above all a radio-transmitter which transmits the measured data all 2s. It works with the frequency of 137,950 MHz ou 138,500 MHz. - Its too a generator which provides a 5V voltage at each sensors connected. - It is a volmetre which is able to measure
voltage between 0 and 5V.
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Our connexions : 8 sensors can be connected to the transmitter which broadcast the data measured. Channel 1 : Inside temperature sensor located at the upxard surface ofthe balloon ; Channel 2 : ambient temperature sensor 1 ; Channel 3 : ambient temperature sensor 2 ; Channel 4 : Inside temperature sensor located at the middle of the balloon; Channel 5 : pressure sensor 1 ; Channel 6 : pressure sensor 2 ; Channel 7 : horizontal lighting sensor 1 ; Channel 8 : horizontal lighting sensor 2. |