Patent ID: 9030919
Filing Date: 2015-05-12
Classification: G01V

Abstract:
1. A combined broadband ocean bottom seismograph with single sphere, comprising: an anchor; a seismometer chamber; a functional chamber; and a release mechanism, wherein the anchor is provided at the bottom of the ocean bottom seismograph and has a frame structure with a rigid ring provided at the center of the frame structure for accommodating the seismometer chamber so that a seismometer sealed chamber in the seismometer chamber is seated on the seabed and in contact with the seabed directly; wherein the seismometer chamber comprises a bell-shaped protection hood with an opening facing downward and the seismometer sealed chamber with a top end connected to an inner surface of the top of the bell-shaped protection hood via a plurality of cables, and the bottom of the seismometer sealed chamber is projected outside the opening of the bell-shaped protection hood and accommodated in the rigid ring of the anchor to be level with the bottom of the anchor; wherein the functional chamber comprises a plastic instrument chamber and a glass instrument chamber secured in the plastic instrument chamber, the bottom of the plastic instrument chamber being fixedly connected to the outer surface of the top of the bell-shaped protection hood and the top end of the plastic instrument chamber being fixedly connected to the release mechanism; and wherein the release mechanism is provided above the functional chamber and connected to frames of the anchor via fusible tensioning steel wires so that the functional chamber and the seismometer chamber are held on the rigid ring at the center of the anchor.