High-speed line-scan camera with digital time delay integration

2007 ◽  
Author(s):  
Ernst Bodenstorfer ◽  
Johannes Fürtler ◽  
Jörg Brodersen ◽  
Konrad J. Mayer ◽  
Christian Eckel ◽  
...  
Keyword(s):  
Time Delay ◽  
High Speed ◽  
Line Scan ◽  
Digital Time ◽  
Time Delay Integration

Efficient chroma subsampling strategy for compressing digital time delay integration mosaic video sequences in H.264/AVC

2011 ◽  
Vol 20 (2) ◽  
pp. 023011 ◽  
Author(s):  
Kuo-Liang Chung ◽  
Wei-Jen Yang ◽  
Chyou-Hwa Chen ◽  
Hong-Yuan Mark Liao ◽  
Sheng-Mao Zeng
Keyword(s):  
Time Delay ◽  
Video Sequences ◽  
Digital Time ◽  
Time Delay Integration

Dynamic Analysis and Control of High Speed and High Precision Active Magnetic Bearings

1992 ◽  
Vol 114 (4) ◽  
pp. 623-633 ◽  
Author(s):  
K. Youcef-Toumi ◽  
S. Reddy
Keyword(s):  
Time Delay ◽  
High Speed ◽  
Dynamic Stiffness ◽  
Magnetic Bearing ◽  
Magnetic Bearings ◽  
Successful Operation ◽  
Highly Nonlinear ◽  
Wide Range ◽  
And Control ◽  
Digital Time

The successful operation of actively controlled magnetic bearings depends greatly on the electromechanical design and control system design. The function of the controller is to maintain bearing performance in the face of system dynamic variations and unpredictable disturbances. The plant considered here is the rotor and magnetic bearing assembly of a test apparatus. The plant dynamics consisting of actuator dynamics, rigid rotor dynamics and flexibility effects are described. Various components of the system are identified and their corresponding linearized theoretical models are validated experimentally. Tests are also run to identify the coupling effects and flexibility modes. The highly nonlinear behavior of the magnetic bearings in addition to the inherent instability of such a system makes the controller design complex. A digital Time Delay Controller is designed and its effectiveness evaluated using several simulations based on linear and nonlinear models for the bearing including bending mode effects. This controller is implemented as an alternative to an existing linear analog compensator. Several experiments are conducted with each controller for spinning and nonspinning conditions. These include time responses, closed loop frequency responses and disturbance rejection responses. The experimental results and comparisons between those of a digital Time Delay Controller and an analog compensator indicate that the Time Delay Controller has impressive static and dynamic stiffness characteristics for the prototype considered. The Time Delay Controller also maintains almost the same dynamic behavior over a significantly wide range of rotor speeds.

High-speed backside-illuminated time-delay-integration (TDI) CCDs

1999 ◽  
Author(s):  
John R. Tower ◽  
Thomas M. Sudol ◽  
Vipulkumar Patel ◽  
Pradyumna K. Swain ◽  
Peter A. Levine ◽  
...  
Keyword(s):  
Time Delay ◽  
High Speed ◽  
Backside Illuminated ◽  
Time Delay Integration

A 32-Stage 15-b Digital Time-Delay Integration Linear CMOS Image Sensor With Data Prediction Switching Technique

2017 ◽  
Vol 64 (3) ◽  
pp. 1167-1173 ◽  
Author(s):  
Chin Yin ◽  
Ting Liao ◽  
Kuan-Lin Liu ◽  
Chen-Che Kao ◽  
Chin-Fong Chiu ◽  
...  
Keyword(s):  
Time Delay ◽  
Cmos Image Sensor ◽  
Image Sensor ◽  
Data Prediction ◽  
Digital Time ◽  
Time Delay Integration

Simulation on the Regulating Characteristics of the Pulse Modulation Hydraulic Hammer

2011 ◽  
Vol 422 ◽  
pp. 176-183
Author(s):  
Gang Wang ◽  
Yu Wan Cen
Keyword(s):  
Time Delay ◽  
Simulation Model ◽  
Impact Energy ◽  
High Speed ◽  
Impact Frequency ◽  
Pulse Modulation ◽  
Motion Equations ◽  
Hydraulic Hammer ◽  
Working Frequency ◽  
Simulation Results

To improve the regulating characteristics of impact energy, simplify structure of hydraulic hammer, a new pulse modulation hydraulic hammer is presented in the paper which can help regulate its impact frequency easily. The motion equations of the hydraulic hammer are established, its simulation model is obtained and the dynamic simulation is carried out on AMESim. The dynamics of high-speed ON/OFF valve is taken into account in the simulation model. The tendency of simulation results conforms to experimental results; it shows that the pulse modulation hydraulic hammer is feasible, and the hydraulic hammer model is reasonable. The time delay in high working frequency is also analyzed.

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