A magnetic field sensor for measuring the rotational speed of a rotating gear component is disclosed. The apparatus may include a first guide rail for guiding the piece goods, wherein this guide rail has a gap through which one region of the piece goods passes and by means of which another region of the piece goods is held. An impingement baffle bridges the outer band and aft flange at the root thereof to provide impingement cooling. Once the packaged media is registered on the server, the media is made available for limited use and possible license through an authorization server. An electrical joint connects the conductive fill, the capacitor inner metallization along with the capacitor active electrode plates and the conductive leadwire.