| 摘要 |
An ultrasound flow meter for ultrasonic measurement of a fluid flow, the meter comprising a housing 120 with a measuring tube 114 inside, and first and second ultrasound transducers 206, a circuit board 202 with an electronic circuit 204 arranged for operating the first and second ultrasound transducers 206, and a common protection membrane 132, such as a sheet of metal, arranged to protect both of the first and second ultrasound transducers 206 from contact with the fluid. The common protection membrane 132 may further form part of a water-tight casing, such as an IP68 class casing capable of being submerged in liquid, and wherein the first and second ultrasound transducers 206 and the circuit board 202 with the electronic circuit 204 are positioned within the water-tight casing. |
