三角法激光測(cè)量系統(tǒng)的誤差分析及消除方法

從理論和應(yīng)用兩方面分析了三角法激光測(cè)量系統(tǒng)的誤差,得出：定點(diǎn)標(biāo)定和插值可以消除
光學(xué)放大率隨測(cè)量點(diǎn)位置變化的影響；雙光路方案或標(biāo)準(zhǔn)點(diǎn)校準(zhǔn)方法可以消除光線路徑隨環(huán)境溫度、濕度變化而引入的誤差；提高激光束質(zhì)量和采用峰值求光斑中心的方法，可以消除激光束強(qiáng)度分布、物體表面粗糙度、CCD 傳感器、信號(hào)處理電路等引入的誤差。
關(guān)鍵詞：激光測(cè)量系統(tǒng); 三角法測(cè)量; 數(shù)據(jù)處理; 測(cè)量誤差
Abstract: The error of triangular laser measuring system is analyzed in theory and applications, thus some conclusions have been obtained. These conclusions are: 1. Fixed-point scaling and interpolation can eliminate the influence of optical magnification ratio varying with position variation of measuring points is obtained, 2. Double light path scheme or calibration at standard points can eliminate the errors introduced by light-ray path varying with ambient temperature and humidity. 3. Eliminating the errors introduced by intensity distribution of laser beam, roughness on object surface, CCD sensor and signal processing circuit, etc through improving laser beam quality and looking for spot center with peak.
Key words: Laser measuring system ; Triangulation; Data processing; Measuring error