A kind of calibrating installation of laser ranging and surveying instrument

A kind of calibrating installation of laser ranging and surveying instrument

  • CN 204,044,355 U
  • Filed: 07/30/2014
  • Issued: 12/24/2014
  • Est. Priority Date: 07/30/2014
  • Status: Active Grant
First Claim
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1. a calibrating installation for laser ranging, is characterized in that, comprising:

  • Emitter, for generating according to high-frequency oscillation signal modulation the first light wave and the second light wave that also emission wavelength is different, wherein, a part for described first light wave is as outer light path first signal, as outer light path secondary signal after another part of described first light wave is turned back by measured target reflection, a part for described second light wave is as interior light path first signal, and another part of described second light wave is as interior light path secondary signalFirst photoelectric conversion device, carries out opto-electronic conversion for receiving outer light path first signal and interior light path first signal respectively and exports respectively;

    Second photoelectric conversion device, is reflected the outer light path secondary signal of turning back by measured target and interior light path secondary signal is carried out opto-electronic conversion and exports respectively for receiving respectively;

    Phase detector, for receiving the signal that described first photoelectric conversion device and described second photoelectric conversion device export respectively, carrying out phase compare and exporting the phase signal eliminating substrate reference.

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