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Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Anatomy of the hysteresis loop. Figure Legend: From: Hysteresis compensation of.

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Presentation on theme: "Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Anatomy of the hysteresis loop. Figure Legend: From: Hysteresis compensation of."— Presentation transcript:

1 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Anatomy of the hysteresis loop. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

2 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Illustration of inverse Preisach model computing process. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

3 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Schematic representation of a two-layer NN. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

4 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Optical layout of the experimental TTM control system setup. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

5 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Block diagram of the close-loop TTM system with an HC in the feed-forward loop. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

6 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Input voltage signal and hysteresis curves: (a) input voltage and (b) measured hysteresis curves. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

7 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. The inverse hysteresis model simulation results: (a) the actual applied voltages and the inverse hysteresis model simulated output; and (b) the experimental measured and simulated inverse hysteresis curves. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

8 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. The static hysteresis curves with HC on and off. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

9 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Open-loop tracking results for a sine wave with frequency of 30 Hz when HC is on and off: (a) tracking output and (b) trace errors. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

10 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Closed-loop integral control results for a sine wave frequency of 30 Hz when HC is on and off: (a) tracking output and (b) trace errors. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107

11 Date of download: 6/24/2016 Copyright © 2016 SPIE. All rights reserved. Closed-loop integral control results for actual tip aberrations when HC is on and off: (a) tracking output and (b) trace errors. Figure Legend: From: Hysteresis compensation of the piezoelectric ceramic actuators–based tip/tilt mirror with a neural network method in adaptive optics Opt. Eng. 2016;55(5):054107. doi:10.1117/1.OE.55.5.054107


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