Average water temperature measuring device for river mouth area

The invention discloses an average water temperature measuring device for a river mouth area, and relates to water temperature measurement. The average water temperature measuring device comprises a GPS module, a computer, a data acquisition card, a power amplifier, a transmitting transducer, a receiving transducer, a preamplifier, a filter, a heat sink, and an accumulator, wherein the GPS module is used for positioning an observation station and time synchronization to generate 1 pps pulse and trigger the working state of the data acquisition card; the computer is used for generating digital signals through a LabVIEW compiled user program, and sending the digital signals to the data acquisition card; the data acquisition card transmits analog signals to the power amplifier; the analog signals transmitted by the filter are converted into digital signals and transmitted to the computer; the output end of the power amplifier is connected with the transmitting transducer; the transmitting transducer is used for converting the analog signals amplified by the power amplifier into sound signals and transmitting the sound signals; the output end of the receiving transducer is connected with the preamplifier; the output end of the preamplifier is connected with the filter; the output end of the filter is connected with the data acquisition card.