Abstract: The invention relates essentially to equipment (100) to be positioned against the body of a subject, said equipment including an acoustic measurement device (105) having at least one acoustic sensor (110) for measuring acoustic signals given off by the subject's body, wherein said measurement device (105) further comprises: a rigid structure (120) that is stationary relative to the equipment; and connection means (450, 550, 650, 750, 850, 950) for connecting the acoustic sensor (110) to the rigid structure (120); the connection means (450, 550, 650, 750, 850, 950) and the acoustic sensor (110) being movable relative to the rigid structure (120), and the connection means (450, 550, 650, 750, 850, 950) defining predetermined degrees of freedom of movement for the acoustic sensor (110).