公开(公告)号：US4998058A

公开(公告)日：1991-03-05

申请号：US328430

申请日：1989-03-24

Applicant: Semor D. Tofte ,  Jeffry M. Irish ,  Thomas K. Hiniker

Inventor： Semor D. Tofte ,  Jeffry M. Irish ,  Thomas K. Hiniker

IPC: G01V3/08

CPC classification number: G01V3/081

Abstract: A method and apparatus for locating two corresponding points on opposite sides of a wall, floor, or other structural component. A transmitter transmits a electromagnetic signal indicative of a first point located on one side of the component, a signal receiver on the other side of the component generates an electrical signal proportionate to the strength of the electromagnetic signal, and a display outputs a maximum reading when the signal receiver indicates a maximum electromagnetic signal. The sensitivity of the display may be adjusted. The transmitter, receiver, and display may be structurally integrated when not in use. The transmitter is attached to the first side of the structural component at the first point, the receiver is moved along a second side of the structural component, and the receiver is moved along the second side to a location indicated by a maximum display.

Abstract translation: 一种用于在墙壁，地板或其他结构部件的相对侧上定位两个对应点的方法和装置。 发射机发送表示位于组件一侧的第一点的电磁信号，组件另一侧的信号接收器产生与电磁信号的强度成比例的电信号，并且显示器输出最大读数，当 信号接收器指示最大电磁信号。 可以调整显示器的灵敏度。 发射器，接收器和显示器可以在不使用时在结构上集成。 发射器在第一点处附接到结构部件的第一侧，接收器沿着结构部件的第二侧移动，并且接收器沿着第二侧移动到由最大显示器指示的位置。

公开(公告)号：USD310339S

公开(公告)日：1990-09-04

申请号：US179140

申请日：1988-04-08

Applicant: S. David Tofte ,  Jeffry M. Irish

Designer： S. David Tofte ,  Jeffry M. Irish