Why do We Need a High Performance Position Sensitive Detector in Atom Probe Tomography?

Author(s):  
F. Vurpillot ◽  
G. Da Costa ◽  
F. De Geuser ◽  
B. Gault ◽  
B. Deconihout
2019 ◽  
Vol 7 (34) ◽  
pp. 10642-10651 ◽  
Author(s):  
Shuang Qiao ◽  
Jihong Liu ◽  
Guangsheng Fu ◽  
Shufang Wang ◽  
Kailiang Ren ◽  
...  

In this manuscript, the vertically standing nanoplate MoS2/Si heterojunction is prepared and successfully exploited as a photovoltage, photocurrent and photoresistance-based multifunctional self-powered position sensitive detector (PSD).


1995 ◽  
Vol 87-88 ◽  
pp. 428-437 ◽  
Author(s):  
B. Deconihout ◽  
A. Bostel ◽  
M. Bouet ◽  
J.M. Sarrau ◽  
P. Bas ◽  
...  

2010 ◽  
Vol 36 ◽  
pp. 365-369 ◽  
Author(s):  
Shota Nakashima ◽  
Takafumi Nakamuta ◽  
Yuhki Kitazono ◽  
Shi Yuan Yang ◽  
Serikawa Seiichi

In this study, we propose a sensor system to improve the performance of distance measurement using multiple paralleled position sensitive detector (PSD) sensors. The PSD sensor uses a light emitted diode (LED) to illuminate an object and measures the distance to the object by the position on the PSD of the gathered light from the object. The proposed sensor system uses two symmetrically paralleled PSD sensors to increase the measuring distance extent and accuracy. Experimental results showed that the proposed PSD sensor system has an enlarged measuring extent, and has a measuring accuracy better than or equal to the conventional one.


2019 ◽  
Vol 58 (19) ◽  
pp. 5200 ◽  
Author(s):  
Xiaofeng Zhao ◽  
Lingrui Zhang ◽  
Qiying Gai ◽  
Chang Hu ◽  
Xianjie Wang

Optica ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 27 ◽  
Author(s):  
Wenhui Wang ◽  
Zhenzhong Yan ◽  
Jinfeng Zhang ◽  
Junpeng Lu ◽  
Hua Qin ◽  
...  

Metrologiya ◽  
2020 ◽  
pp. 38-51
Author(s):  
V. N. Astapov ◽  
I. N. Kozlova

This article presents the rationale and methodology for developing an intrinsically safe device, namely, a hydrostatic fiber optic sensor with a position-sensitive detector for monitoring the level of oil products in large-capacity tanks at oil depots and during pumping in a raw material warehouses. This device suitable for continuous monitoring of the liquid level, based on the measurement of a hydrostatic column of liquid with automatic offset of changes in the density of the liquid. Offset is carried out by means of a displacer (a fully submerged float), inside which a housing with a position-sensitive detector (PSD) is integrated. Theoretical validation of the bellows suspension usage for a displacer is given. During filling a container with a liquid whose level is measured, liquid bellows, the movement of which is recorded by an optical triangulation sensor using the reflected infrared ray incident on the bottom of the bellows. The principle of the triangulation sensor operation is based on the geometric properties of the triangles. The pulses of infrared radiation come through a fiber optic cable. In order to measure the movement of the surface (the bottom of the bellows) by measuring the movement of the reflected beam, a position-sensitive detector is used, which is located in a remote controller. In this device for the intrinsic safety problem solution, optical inputs of a fiber optic flat cable are located in the active zone of the sensor, which is connected to the optical inputs of a position-sensitive detector, operated on the principles of photoelectric effect. The light spot moving along the sensitive zone and converted by the detector into a one-dimensional signal proportional to the distance to the object. hydrostatically applies pressure over the entire effective area of the measuring


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