公开(公告)号：WO2014015271A1

公开(公告)日：2014-01-23

申请号：PCT/US2013/051324

申请日：2013-07-19

Applicant: GEOSPACE TECHNOLOGIES, LP

Inventor： WOO, Daniel

IPC: G01V1/18

CPC classification number: G01V1/183 ,  G01V1/182 ,  G01V1/38 ,  H01F7/066 ,  H04R9/02

Abstract: A micro geophone having pole pieces do not extend out around the sides of the magnet, thereby allowing a reduced geophone diameter for a given magnet diameter. The pole pieces are adhesively bonded to the magnet using an adhesive, which may be made suitably electrically conductive by silver or nickel fillers or non-conductive by mica fillers such as borosilicate glass micro-spheres. Axial space is economized by eliminating traditional spider retaining rings. The spider springs are seated directly against the coil form and secured by adhesive fillets disposed on the outward-facing spring circumferences. The spider springs include circumferential notches to receive adhesive. A two-piece bimetallic coil form of aluminum and a heavier material, joined by adhesive, is provided. Headers are affixed to the housing within the seats by adhesive. A straight or rounded chamfer at each of the geophone ends allows the overall geophone dimensions to be maximized.

Abstract translation: 具有极片的微型地震检波器不会围绕磁体的侧面延伸，从而允许给定磁体直径减小的地震检波器直径。 极片使用粘合剂粘合到磁体上，粘合剂可以通过银或镍填料适当地导电，或者通过云母填料如硼硅酸盐玻璃微球不导电。 通过消除传统的蜘蛛保持环来节省轴向空间。 蜘蛛弹簧直接抵靠线圈形状，并通过设置在面向外的弹簧周边上的胶片固定。 蜘蛛弹簧包括用于接收粘合剂的圆周凹口。 提供了一种两片双金属线圈形式的铝和较重的材料，通过粘合剂连接。 标题通过粘合剂固定在座椅内的壳体上。 每个地震检波器端部的直角或倒圆倒角允许整个地震检波器尺寸最大化。