Patent ID: 9097567
Filing Date: 2015-08-04
Classification: G01F

Abstract:
1. An ultrasonic, flow measuring device, comprising: a measuring tube having a straight measuring tube axis; a transmitter for sending an acoustic signal on a first signal path; a receiver for receiving the acoustic signal on the first signal path; and at least a first reflection surface, on which the acoustic signal is reflected on the first signal path, in each case, at least once, wherein: the acoustic signal incident on the first reflection surface and the acoustic signal reflected on the first reflection surface travel, in each case, along a straight subsection of the first signal path; said transmitter, said receiver and said first reflection surface are so oriented with respect to one another and arranged in or on the measuring tube that the acoustic signal on the first signal path from a first transmitter to a first receiver is so reflected on the first reflection surface that the sum of all lengths of all subsections as projected on the measuring tube axis, extending in a first plane parallel to the measuring tube axis, and having a predetermined separation other than zero from the measuring tube axis has a predetermined value different from zero; the sum of all lengths of all subsections as projected on the measuring tube axis, extending in a second plane different from the first plane and parallel to the measuring tube axis, and having the same predetermined separation from the measuring tube axis has the same predetermined value; the first plane extends in a first half of the measuring tube and the second plane extends in a second half of the measuring tube; and the first half of the measuring tube does not overlap with the second half of the measuring tube.