Sensor quantization method for space optics effective loading force disturbance simulation source actuator

A payload and space optics technology, which is applied in the simulation devices of space navigation conditions, space navigation equipment, transportation and packaging. The effect of computing performance and control accuracy

Active Publication Date: 2015-07-22
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is no uniform micro-vibration ground test verification method for high-resolution space payloads. Most of the test methods are oriented to component-level equivalent models, and they are also consistent with the actual on-orbit payload in terms of micro-vibration degrees of freedom and coupling paths. The environment is very different, and there is no report on the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sensor quantization method for space optics effective loading force disturbance simulation source actuator
  • Sensor quantization method for space optics effective loading force disturbance simulation source actuator

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Such as figure 1 As shown, the quantification method for the control loop sensor of the spatial optical payload force disturbance simulation source actuator includes: determining the control loop type 1, determining the loop sensor type and sensitivity 2, determining the control range and minimum control step size 3 , Determine the sensor quantization bit width 4 and loop sensor gain compensation 5. Among them, the drive adopts Copley JSP-180-10, the controller adopts DSP28335, the force sensor adopts 208C02 of PCB company, the force feedback loop update control frequency is set to 10kHz, the current control command adopts the PWM method, and 100% PWM corresponds to the current command 4A. 50% PWM corresponds to the current command 0A, and 0% PWM corresponds to the current command -4A.

[0016] Such as figure 2 As shown, the specific steps of the method of the present invention are:

[0017] The first step is to determine the control loop type. The control input parameter...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a sensor quantization method for a space optics effective loading force disturbance simulation source actuator and belongs to the technical field of testing space platform micro-vibration environmental adaptability through space optics effective loads. The sensor quantization method aims to realize the space optics effective loading force disturbance simulation source actuator. The method comprises the step one of determining a control loop type, the step two of determining a sensor type and the sensitivity, the step three of determining the control range and the minimum control step size, the step four of determining the sensor quantization bit width, and the step five of carrying out gain compensation on sensors of a loop. The method achieves the effect of sensor quantization of the space optics effective loading force disturbance simulation source actuator, normalization processing and resolution setting of multi-sensor quantization of the loop are controlled, and the situation that due to the fact that in a digital controller, a large number of division operations are guided into the sensor normalization processing, the operation performance and the control precision of the controller are reduced.

Description

technical field [0001] The invention relates to a sensor quantification method for a force disturbance simulation source actuator of a space optical payload, and belongs to the technical field of adaptability testing of a space optical payload to a micro-vibration environment of a space platform. Background technique [0002] The space optical payload is a special imaging device carried on the satellite to obtain the optical information of the target of interest. Under the same application conditions, in order to obtain high-quality and high-resolution images, the volume and aperture of the optical load are getting larger and larger, and the requirements for the micro-vibration environment of the satellite platform on which it is located are also getting higher and higher. The environment of the satellite platform where the optical payload is located is micro-vibration due to the movement of the mechanism, the tremor caused by the cold and heat of the solar panel, and the di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B64G7/00
Inventor 顾营迎徐振邦吴清文李义张立宪
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products