公开(公告)号：US3809481A

公开(公告)日：1974-05-07

申请号：US31123472

申请日：1972-12-01

Applicant: NASA

Inventor： SCHINDLER R

IPC: G01J3/453 ,  G01B9/02

CPC classification number: G01J3/4535

Abstract: In a Fourier interference spectrometer of the double-pass retroreflector type, a single mirror is employed in the path of both split beams of an incoming ray to cause them to double back through separate retroreflectors. Changes in optical path length are achieved by linear displacement of both retroreflectors using a motor driven lead screw on one for large, low-frequency changes, a moving-coil actuator on the other for smaller, midfrequency changes and a piezoelectric actuator on one of these two for small, high-frequency changes.

Abstract translation: 在双通后向反射器类型的傅里叶干涉光谱仪中，在入射光束的两个分束的路径中采用单个反射镜，以使它们通过单独的后向反射器双向反射。 光路长度的变化通过两个回射器的线性位移来实现，该反射器使用马达驱动的导螺杆，用于大的，低频率的变化，另一个用于较小的中频变化的动圈式致动器和一个压电致动器 这两个为小，高频率的变化。