An ultrasonic heat meter is an instrument for calculating heat.
The heat meter consists of a pair of temperature sensors installed on the upstream and downstream pipes through which the heat-carrying fluid flows, and a flow meter installed on either the fluid inlet or return pipe (the measurement result varies depending on the flow meter's installation location). The flow meter emits a pulse signal proportional to the flow rate, and the pair of temperature sensors provide analog signals indicating temperature levels. An integrator collects the signals from the flow and temperature sensors and uses a calculation formula to calculate the heat gained by the heat exchange system. Compared to the household meters commonly used in the construction industry in the past-water meters, electricity meters, and gas meters-ultrasonic heat meters have a more complex design and higher technological content. Ultrasonic heat meters are high-tech products incorporating mechanical, electronic, and information technology, and have been successfully applied in many fields.