Compensation method of PSD's background light based on improved BP neural network

Zhang, Feimeng; Li, Yi; Li, Hao; Gu, Guohua

doi:10.1109/msna.2012.6324535

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…The position information is determined by detecting the movement of the photo generated charge on the substrate, while it has no relationship with the intensity, distribution, symmetry and size of the light spot on the surface [12]. The structure and equivalent circuit of one dimensional PSD are shown in Fig.…”

Section: The Psd Working Mechanismmentioning

confidence: 99%

Sun sensor design and test of a micro satellite

Liu¹,

Sitong²,

Tan³

et al. 2016

J. meas. eng.

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Abstract. According to the requirement of small satellite, this paper designed a digital sun sensor which diaphragm is a V-shaped cross-section structure. Using Position Sensitive Detector (PSD) as the light detector, we designed the V-shaped cross-section structure based on the pinhole imaging principle. The sun sensor realized the accurate calculation for two axis sun angle of the sun sensor. The mechanical test, thermal test and testing of the sun sensor are designed and carried out. The mechanical test and thermal test results verify the stability of the sun sensor. Testing result shows that the detection angle can reach (120°)×(120°), and the attitude determination accuracy is better than 6" in the entire viewing field. The mass, volume and power consumption of the sun sensor is 0.177 kg, 78 mm×77 mm×21 mm and 0.25 W. The sun sensor has low power consumption, large viewing angle and high precision characteristics, which realized the sun sensor the miniaturization and meet the requirements of the micro satellite. Its performance has been verified in orbit.

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Section: The Psd Working Mechanismmentioning

confidence: 99%

Sun sensor design and test of a micro satellite

Liu¹,

Sitong²,

Tan³

et al. 2016

J. meas. eng.

View full text Add to dashboard Cite

show abstract

“…A huge advantage of such sensors is their high speed of resolution. This is due to the wide bandwidth utilised (from DC up to even more than 150 kHz) [ 1 , 2 , 3 , 4 , 5 , 6 ]. Operation over a vast wavelength range (from approx.…”

Section: Introductionmentioning

confidence: 99%

Three Dimensional Membrane Vibration Measurement Using a Two Dimensional Position Sensitive Device

Białek

2022

Sensors

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This study presents the outcome of research into membrane vibrations in a 3D space performed using a system based on position sensitive device (PSD) sensors. Here, measurements were conducted for harmonic vibrations. The use of such detectors for assessing the movement of objects within a plane or space requires determining the position of more than one marker. The article reviews two methods for detecting the position of several light spots on a sensor’s photosensitive plane: a marker sequential control method, and a method based on Fast Fourier Transform (FFT) that employs a square wave control signal. The authors present an approach to improving measurement accuracy for both methods. They also discuss the advantages and disadvantages of each.

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Compensation method of PSD's background light based on improved BP neural network

Cited by 2 publications

References 2 publications

Sun sensor design and test of a micro satellite

Sun sensor design and test of a micro satellite

Three Dimensional Membrane Vibration Measurement Using a Two Dimensional Position Sensitive Device

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