公开(公告)号：US4832490A

公开(公告)日：1989-05-23

申请号：US80428

申请日：1987-07-31

Applicant: Michael Boos ,  Werner Klug ,  Alfons Zoller

Inventor： Michael Boos ,  Werner Klug ,  Alfons Zoller

IPC: G01N21/59 ,  G01B11/06 ,  G01J1/04 ,  G01J1/16 ,  G01J1/36 ,  G01J1/44 ,  G01J3/42 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01N21/84

CPC classification number: G01J1/16 ,  G01B11/0616 ,  G01N21/255 ,  G01J2001/363 ,  G01J2001/4242 ,  G01J2001/4426 ,  G01J3/42 ,  G01N2021/1742 ,  G01N2021/8427 ,  G01N2201/082 ,  G01N2201/084 ,  G01N2201/12753

Abstract: A photometer in which a measuring phase, a reference phase and a dark phase are produced by means of a chopper. These phases are staggered in time, so that a single detector can be provided for all phases. In the photometer the object to be measured is situated between two light conductors, the one light conductor leading to the detector and the other light conductor leading to the chopper input. The chopper output is carried by an additional light conductor to the detector.

Abstract translation: 其中通过斩波器产生测量相位，参考相位和暗相位的光度计。 这些阶段在时间上交错，因此可以为所有阶段提供单个检测器。 在光度计中，要测量的物体位于两个光导体之间，一个光导体通向检测器，另一个光导体通向斩波器输入。 斩波器输出由附加的光导体携带到检测器。

公开(公告)号：US12066324B2

公开(公告)日：2024-08-20

申请号：US17530785

申请日：2021-11-19

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Michele Vaiana ,  Enri Duqi ,  Maria Eloisa Castagna

IPC: G01J1/36 ,  H01L33/46

CPC classification number: G01J1/36 ,  H01L33/465 ,  G01J2001/363

Abstract: Radiation sensor including a detection assembly and a chopper assembly, which are mechanically coupled to delimit a main cavity; and wherein the chopper assembly includes: a suspended movable structure, which extends in the main cavity; and an actuation structure, which is electrically controllable to cause a change of position of the suspended movable structure. The detection unit includes a detection structure, which faces the main cavity and includes a number of detection devices. The suspended movable structure includes a first shield of conductive material, which shields the detection devices from the radiation, the shielding of the detection devices being a function of the position of the suspended movable structure.