ADAPTER FOR REAL EAR MEASUREMENTS

摘要

An adapter configured to connect to a probe tube for calibrating a hearing aid device is disclosed. The adapter comprises a tubular pipe member and an opening through which the adapter is adapted to receive the probe tube. The adapter comprises an input member configured to connect to a connection member for providing fluid communication between the probe tube and the connection member through the adapter. An outer diameter of the probe tube is 5-20%, preferably 8-15% smaller than an inner diameter of the cylindrical space of the pipe member and that length of the cylindrical space of the pipe member is at least five times, preferably at least ten times larger than the outer diameter of the probe tube. Hereby it is achieved that a long narrow gab can be provided between probe tube and the pipe member of the adapter so that a sufficient acoustic seal can be accomplished.

主权项

1. An adapter configured to be connected to a probe tube for calibrating a hearing aid device, where the adapter comprises a tubular pipe member and an opening through which the adapter is adapted to receive the probe tube, where the adapter further comprises an input member configured to be connected to an connection member in order to provide fluid communication between the probe tube and the connection member through the adapter, where the probe tube has an outer diameter (D1) and where the tubular pipe member comprises a cylindrical space having an inner diameter (D2) and a length (L2) wherein the outer diameter (D1) of the probe tube is 5-20%, preferably 8-15% smaller than the inner diameter (D2) of the cylindrical space of the pipe member and that the length (L2) of the cylindrical space of the pipe member is at least five times, preferably at least ten times larger than the outer diameter (D1) of the probe tube.