ANGLE MEASUREMENT DEVICE Russian patent published in 2019 - IPC G01B11/26 

FIELD: astronautics.

SUBSTANCE: device can be used to measure the angular coordinates of the position of the axes of spacecraft relative to objects of celestial orientation. Device contains a hood, a channel of a geometric standard (GSC) and a receiving device, including a lens and a photodetector with a computing unit. GSC contains a collimator unit including a collimator lens, a rectangular prism, a radiation source, a pinhole and a flat mirror mounted on the reference plane at half the focal length of the collimator lens, as well as a mirror-prism unit for inputting radiation into the receiving device. Collimator lens is made in the form of an optical element in the form of a monolithic part with one surface of a spherical shape and with two parallel inclined surfaces with a mirror coating and an output flat surface. Pinhole located at the rear main point of the collimator lens is applied to the input oblique surface. Rectangular prism is set by the hypotenuse face in the region of the diaphragm, its input plane facing the radiation source is perpendicular to the optical axis of the collimator lens.

EFFECT: technical result is improving the accuracy of the device without changing the weight and size characteristics.

1 cl, 6 dwg