公开(公告)号：WO2011005979A1

公开(公告)日：2011-01-13

申请号：PCT/US2010/041393

申请日：2010-07-08

Applicant: GEOSPACE TECHNOLOGIES, LP

Inventor： WOO, Daniel, M.

IPC: H04R9/00

CPC classification number: G01V1/181

Abstract: A geophone utilizing an Alnico-9 magnet and having an improved sensitivity over Alnico-9 gcophones of prior art through the lengthening of the parasitic air gap between the upper and lower pole pieces which, results in less magnetic flux leakage. The flux concentration through the geophone coils is increased and shifted towards the ends of the magnet. The increase of sensitivity of geophone of the present invention over prior art geophonεs may exceed 3 dB. The axial length of the coil bobbin is increased, and the positions of the electrical coils are moved towards the ends of the magnet to align with the shifted magnetic flux.

Abstract translation: 利用Alnico-9磁体并且通过延长上部和下部极靴之间的寄生空气间隙而使现有技术的Alnico-9 gcophone具有改进的灵敏度的地震检波器，这导致较少的磁通泄漏。 通过地震检波器线圈的磁通浓度增加并朝向磁体的端部移动。 与现有技术的地震检波器相比，本发明的地震检波器的灵敏度的增加可能超过3dB。 线圈筒管的轴向长度增加，并且电线圈的位置朝向磁体的端部移动以与移动的磁通量对准。

公开(公告)号：WO2011005985A1

公开(公告)日：2011-01-13

申请号：PCT/US2010/041400

申请日：2010-07-08

Applicant: GEOSPACE TECHNOLOGIES, LP

Inventor： WOO, Daniel, M.

IPC: H04R9/00

CPC classification number: G01V1/182

Abstract: A vertical geophone that includes a lower frequency spring, which forms part of the gcophone electrical circuit, that is positioned directly on the lower end cap This arrangement eliminates the "'spring supported by a spring'" arrangement of prior art geophones to minimize geophone distortion and simplify tuning of the frequency springs. A contact spring is positioned between the lower frequency spring and the lower pole piece for forming part of the geophone electrical circuit. One surface of contact spring includes a plurality of wiper surfaces that ensure consistent sliding electrical contact against either the bottom surface of the lower pole piece or the upper surface of the lower frequency spring. The obverse surface of the contact spring is preferably spot welded to the other adjacent member.

Abstract translation: 一种垂直地震检波器，其包括形成直接位于下端盖上的一部分gcophone电路的较低频率弹簧。这种布置消除了现有技术的地震检波器的“弹簧支撑的弹簧”布置，以最小化地震检波器失真 并简化频率弹簧的调谐。 接触弹簧位于低频弹簧和下极片之间，用于形成地震检波器电路的一部分。 接触弹簧的一个表面包括多个擦拭器表面，其确保与下极靴的底表面或较低频率弹簧的上表面的一致的滑动电接触。 接触弹簧的正面优选点焊到另一个相邻的构件上。

公开(公告)号：WO2011005981A1

公开(公告)日：2011-01-13

申请号：PCT/US2010/041395

申请日：2010-07-08

Applicant: GEOSPACE TECHNOLOGIES, LP

Inventor： WOO, Daniel, M.

IPC: H04R9/00

CPC classification number: G01V1/182 ,  H04R1/46

Abstract: A geophone in which a coil bobbin assembly ideally includes a provision for receiving a third coil winding between the upper and lower coils. A third mass-tuning coil is wound around die bobbin whose purpose is to adjust the overall mass of the bobbin assembly with greater accuracy and precision than can be achieved by machining techniques alone. Mass is adjusted by adding or subtracting one or more turns of wire in the tuning coil. The tuning coil is preferably electrically shorted for increasing geophone damping.

Abstract translation: 一种地音检波器，其中线圈架组件理想地包括用于接收上和下线圈之间的第三线圈绕组的设备。 第三个质量调节线圈缠绕在模具绕线筒上，其目的是以比仅通过机械加工技术可以实现的更高的精度和精度来调节线轴组件的整体质量。 通过在调谐线圈中增加或减少一圈或多圈导线来调整质量。 调谐线圈优选地被电短路以增加地震检波器阻尼。

公开(公告)号：WO2014015282A1

公开(公告)日：2014-01-23

申请号：PCT/US2013/051347

申请日：2013-07-19

Applicant: GEOSPACE TECHNOLOGIES, LP

Inventor： WOO, Daniel, M.

IPC: G01V1/18

CPC classification number: G01V1/182

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: 具有极靴的微型地震检波器不会围绕磁体的侧面延伸，从而允许对于给定的磁体直径减小地震检波器直径。 使用粘合剂将磁极片粘合到磁体上，所述粘合剂可以通过银或镍填充物适当地导电或者通过诸如硼硅酸盐玻璃微球的云母填充物而不导电。 轴向空间通过消除传统的蜘蛛扣环而节约。 星形弹簧直接安置在线圈形式上，并通过设置在朝外的弹簧圆周上的粘合剂嵌条固定。 星形弹簧包括用于接收粘合剂的周向槽口。 提供由粘合剂连接的两片双金属线圈形式的铝和较重的材料。 接头通过粘合剂固定在座椅内的外壳上。 每个地震检波器端部都有一个直的或倒圆的倒角，可以使检波器的整体尺寸最大化。