| 摘要 |
FIELD: controlling and measuring systems engineering. ^ SUBSTANCE: device has body with tail piece and photo-detecting block. Photo-detecting block is made in form of combination of front case with periphery photo-detectors, mounted perpendicularly to device axis and central case with axial photo-detector, interconnected via inner cone-shaped light absorbing cover. Central case is displaced along device axis relatively to front case. ^ EFFECT: higher precision, higher trustworthiness. ^ 3 dwg |
