发明名称 |
CALIBRATION METHOD AND DISTANCE MEASUREMENT DEVICE THEREOF BASED ON PHASE MEASUREMENT OF DOUBLE-WAVELENGTH LASER TUBE |
摘要 |
A calibration method and a distance measurement device thereof based on phase measurement of a double-wavelength laser tube. The method comprises the following steps: step 1, a first wavelength light-wave is transmitted to a target to be measured through a first light filter from a light wave transmitting device during forming an external light path, the light-wave reflected by the target is received by a receiving device, as an external light path signal, the first wavelength light-wave is modulated from a high frequency oscillating signal (S101); step 2, a second wavelength light-wave is transmitted to the receiving device through a second light filter from the light wave transmitting device during forming an internal light path, as an internal light path signal of a basic reference, the second light-wave is generated from the high frequency oscillating signal (S102); step 3, the receiving device compares phases of the two sequentially received light-waves, and outputs a phase signal eliminated the base reference (S103). |
申请公布号 |
WO2013116963(A1) |
申请公布日期 |
2013.08.15 |
申请号 |
WO2012CN00422 |
申请日期 |
2012.03.31 |
申请人 |
JIANGSU LAITZ OPTOELECTRONICS TECHNOLOGY CO., LTD.;DU, XIN;QIAO, BAIWEN;ZHA, XIAOYI |
发明人 |
DU, XIN;QIAO, BAIWEN;ZHA, XIAOYI |
分类号 |
G01S17/36;G01C3/00;H01S5/00 |
主分类号 |
G01S17/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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