Sub nano grade double frequency laser interferometer signal subdivision system
A dual-frequency laser interference and signal subdivision technology, applied in the direction of instruments, optical devices, measuring devices, etc., can solve the problems of limited precision, limited moving speed, limited, etc., achieve high stability and reliability, improve Subdivision accuracy, the effect of high subdivision accuracy
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0011] Such as figure 1 As shown, the embodiment of the present invention consists of a measurement signal preprocessing circuit 1, a reference signal preprocessing circuit 2, a digital phase detection circuit 3, a main clock signal generating circuit 4, a phase shifter group 5, a counting circuit 6, a counter group 7 and an operation The processing circuit 8 is composed of the measurement signal preprocessing circuit 1 and the reference signal preprocessing circuit 2. After completing the photoelectric detection, amplification, filtering and shaping of the measurement signal and the reference signal respectively, the output is two channels of square wave digital signals, which are sent to the digital identification The phase circuit 3 conducts phase detection and outputs a digital pulse signal with a certain width. The rising edge of the output signal of the digital phase detection circuit 3 drives the main clock generation circuit 4 to generate a clock signal, and drives the...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com