Modular Multi-Channel Acquisition With Clock Synchronization
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Solution Overview
Problem
Traditional acquisition systems with more than four channels face challenges such as high power consumption, complex cooling requirements, and difficulties in manufacturing and testing, making it impractical to build systems with a large number of channels, especially those exceeding 15 GHz bandwidth.
Innovation Solution
A modular acquisition system is developed, allowing for the addition of potentially unlimited channels, with each module having individual cooling units and independent power supply, and a synchronization system that distributes high-frequency clocks to minimize jitter and temperature drift, using power dividers and amplifiers to match signal paths and compensate for cable delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a traditional acquisition system is built with more than four channels to increase channel quantity, then the number of acquisition channels increases, but power consumption increases and cooling requirements become complex
Solution Approach 1:
The acquisition system is divided into multiple independent acquisition modules, each handling a subset of channels. This segmentation allows distributed power management where each module consumes power independently, avoiding the exponential power growth of a monolithic system. The system can dynamically activate only the modules needed for the current measurement task.
Solution Approach 2:
The system employs dynamic channel allocation where acquisition modules can be activated or deactivated based on real-time measurement requirements. This dynamic configuration allows the system to scale channel quantity adaptively without continuously powering all channels, reducing overall power consumption while maintaining the capability to handle large numbers of channels when needed.
2Quantity of substance
If a traditional acquisition system is built with more than four channels to increase channel quantity, then the number of acquisition channels increases, but cooling requirements become complex and difficult to manage
Solution Approach 1:
The cooling system is segmented to match the modular acquisition architecture, with each acquisition module having its own independent cooling unit. This distributes the thermal management burden across multiple small, manageable units rather than requiring a single complex cooling system for the entire high-channel-count apparatus.
Solution Approach 2:
Each acquisition module is designed to be self-cooling with integrated thermal management capabilities. This self-service approach to cooling eliminates the need for a centralized complex cooling distribution system, as each module manages its own thermal loads independently through its dedicated cooling unit.
3Adaptability or versatility
If a traditional acquisition system is built with the highest possible number of channels to maximize adaptability, then the system can handle any number of channels, but manufacturing and testing become difficult and time-consuming
Solution Approach 1:
The acquisition system is manufactured as separate, standardized modules that can be independently produced and tested. This segmentation allows each module to be manufactured using the same proven processes, ensuring consistent quality and simplifying manufacturing. Testing is performed on individual modules rather than requiring complete retesting of the entire system when configurations change.
Solution Approach 2:
Acquisition modules are pre-manufactured, pre-tested, and pre-calibrated as independent units before being assembled into the final multi-channel system. This preliminary preparation of modular components streamlines the overall manufacturing process and enables rapid system configuration changes without requiring retesting of the entire apparatus.
4Adaptability or versatility
If a traditional acquisition system is built with a fixed high number of channels to maximize versatility, then the system can accommodate any measurement requirement, but the cost and computing burden increase substantially for users with lower requirements
Solution Approach 1:
The system provides dynamic scalability where users can configure the acquisition system to use only the number of channels and computing resources needed for their specific measurement tasks. This dynamic resource allocation allows users with lower requirements to operate with minimal channels and computing burden, while the full capability is available when needed.
Solution Approach 2:
The modular acquisition modules are designed with universal interfaces and standardized functionalities that can be used in various configurations. This universality allows the same hardware modules to serve different measurement requirements, eliminating the need for users to purchase and power a full high-channel system when only a subset of channels is needed for their application.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The modular system addresses power, testing, and yield issues, enabling flexible expansion of channels without the need for specialized power delivery and complex cooling, while ensuring synchronization and alignment of data across modules, allowing for efficient acquisition of multiple signals.
Implementation Method 1
uses power dividers and amplifiers to minimize jitter and temperature drift
Implementation Method 2
uses power dividers and amplifiers to minimize jitter and temperature drift
Data Source
AI summary
A complex acquisition system and method for synchronizing components thereof. The complex acquisition system further including a master acquisition module. The master acquisition module further including an analog to digital acquisition signal generator for generating an analog to digital acquisition signal, a memory acquisition signal generator for generating a memory acquisition signal, a delay calibration signal for generating a delay calibration signal, a step source signal generator for generating a step source signal, and a synchronization module. The complex acquisition system further includes a plurality of slave acquisition modules, each also including a synchronization module. The complex acquisition system additionally includes a distribution system for distributing each of the analog to digital acquisition signal, memory acquisition signal, delay calibration signal and step source signal to each of the synchronization modules in the master and plurality of slave acquisition modules.