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1. (WO2018104129) SYSTEM AND METHOD FOR DETERMINING THE AIR-TIGHTNESS OF A BUILDING

Pub. No.:    WO/2018/104129    International Application No.:    PCT/EP2017/080855
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: G01M 3/00
Applicants: DEUTSCHES ZENTRUM FÜR LUFT- UND RAUMFAHRT E. V.
Inventors: TIDDENS, Arne
SCHMIEDT, Jacob Estevam
RÖGER, Marc
Title: SYSTEM AND METHOD FOR DETERMINING THE AIR-TIGHTNESS OF A BUILDING
Abstract:
The invention relates to a system (1) for determining the air-tightness of a building (10) having multiple walls (101) and for determining positions of leaks (103) in the building (101). The system has at least one ultrasonic transmitter (3) and at least one ultrasonic receiver (5). The at least one ultrasonic transmitter (3) and the at least one ultrasonic receiver (5) can be placed on different sides (101a, 101b) of at least one of the walls (101) of the building (100), and the ultrasonic receiver (5) receives ultrasonic signals emitted by the ultrasonic transmitter (3). The system also has an evaluation device (7) for determining the air-tightness of the wall (101) and for determining the positions of leaks (103) in the wall (101) by means of the signals received by the ultrasonic receiver (5) and using the position of the ultrasonic transmitter (3) and the position of the ultrasonic receiver (5) and using the time and form of the emitted ultrasonic signals.