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公开(公告)号：US5994688A
公开(公告)日：1999-11-30
申请号：US834472
申请日：1997-04-11
CPC分类号： G01C15/004 , G01B11/26
摘要： A device for leveling a laser transmitter is provided. An optical position sensor is used to measure the position of a compensator assembly. The compensator assembly automatically adjusts the position of the laser beam once the compensator assembly is within a specified range of level. Once the compensator assembly is within the specified range, the compensator assembly optically adjusts the laser beam so that it is plumb. A leveling device may be used to level the laser transmitter in response to the position of the compensator assembly as measured by the position sensor.
摘要翻译： 提供了一种用于调平激光发射器的装置。 光学位置传感器用于测量补偿器组件的位置。 补偿器组件一旦补偿器组件在指定的水平范围内，就自动调整激光束的位置。 一旦补偿器组件在规定范围内，补偿器组件就会光学地调整激光束，使其成为铅垂。 可以使用调平装置来响应于由位置传感器测量的补偿器组件的位置来平坦化激光发射器。
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公开(公告)号：US06292258B1
公开(公告)日：2001-09-18
申请号：US09363576
申请日：1999-07-29
IPC分类号： G01C308
CPC分类号： G01C15/006 , G01B11/26
摘要： A laser receiver is provided that is capable of providing an accurate indication of laser receiver tilt and correcting a generated elevation signal based upon the indicated laser receiver tilt. In accordance with one embodiment of the present invention, a laser receiver is provided comprising a laser beam detection unit, an inclination detection unit, and suitable laser receiver control circuitry. The laser beam detection unit is arranged to enable production of an elevation signal indicative of an elevation of a laser beam relative to the laser receiver. The inclination detection unit comprises a reference light source, an optical fiber, and an optical detector. The optical fiber defines a light input end and a light output end and is coupled to the reference light source such that light from the reference light source enters at the light input end and exits from the light output end as an output beam of light. The optical detector is arranged to receive the output beam of light. The inclination detection unit is arranged to permit the output end of the optical fiber to move relative to the optical detector as the primary receiver axis tilts relative to a vertical reference axis. The optical detector is arranged to produce an optical detection signal indicative of a position of the output beam on the optical detector. The laser receiver control circuitry is arranged to generate a receiver tilt signal from the optical detection signal. The receiver tilt signal is indicative of a degree to which the primary receiver axis is tilted relative to the vertical reference axis. The laser receiver control circuitry is also arranged to correct the elevation signal as a function of the receiver tilt signal.
摘要翻译： 提供了一种激光接收器，其能够提供激光接收器倾斜的精确指示，并且基于所指示的激光接收器倾斜来校正产生的仰角信号。 根据本发明的一个实施例，提供一种包括激光束检测单元，倾斜检测单元和合适的激光接收器控制电路的激光接收器。 激光束检测单元被布置成能够产生指示激光束相对于激光接收器的高度的仰角信号。 倾斜检测单元包括参考光源，光纤和光学检测器。 光纤限定光输入端和光输出端，并且耦合到参考光源，使得来自参考光源的光进入光输入端并从光输出端离开作为输出光束。 光学检测器被布置成接收输出光束。 倾斜检测单元布置成当主接收器轴线相对于垂直参考轴线倾斜时允许光纤的输出端相对于光学检测器移动。 光学检测器被布置成产生指示输出光束在光学检测器上的位置的光学检测信号。 激光接收器控制电路被布置成从光学检测信号产生接收器倾斜信号。 接收机倾斜信号表示主接收机轴相对于垂直参考轴线倾斜的程度。 激光接收机控制电路还被布置成根据接收机倾斜信号来校正仰角信号。
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