Base Unit Mode Detector for Multi-Sensor Signal Preprocessing
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Solution Overview
Problem
Existing measurement systems face challenges in efficiently preprocessing sensor signals from various sensor head types, especially in harsh environments, due to differences in electrical and measurement properties.
Innovation Solution
A measurement system comprising a base unit with a mode detector and a sensor head with a sensing element and an identification unit, allowing the base unit to select an appropriate operating mode based on the identification signal from the sensor head, thereby preprocessing the sensor signal effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the base unit is configured to support multiple sensor head types with different electrical and measurement properties, then the adaptability of the measurement system is improved, but the device complexity increases due to the need for multiple operating modes and identification mechanisms
Solution Approach 1:
The system performs preliminary identification of the sensor head type by detecting electrical properties (such as impedance, capacitance, or resistance) before the actual measurement process. This preliminary action allows the base unit to automatically configure the appropriate operating mode in advance, avoiding the need for manual configuration and reducing operational complexity while maintaining high adaptability across different sensor types.
2Ease of operation
If the sensor head is detachably connected to the base unit to allow flexible installation and replacement, then the ease of operation is improved, but the reliability of the electrical connection may deteriorate due to potential connection issues in harsh environments
Solution Approach 1:
The system uses electrical properties of the connection interface as an intermediary to monitor and verify the quality of the detachable connection. By continuously or periodically measuring parameters such as contact impedance or signal integrity, the system can detect connection issues before they lead to measurement failures, thereby maintaining reliability while preserving the ease of operation provided by detachable connections.
3Measurement precision
If the base unit performs preprocessing of sensor signals according to different operating modes, then the measurement precision is improved, but the loss of time increases due to the need to identify and switch between operating modes
Solution Approach 1:
The system performs preliminary detection of the sensor head's electrical properties immediately upon connection, before the actual measurement process begins. This preliminary identification allows the base unit to automatically select and configure the appropriate operating mode in advance, so that when measurement starts, the system is already optimized for that specific sensor type. This eliminates mode-switching delays during measurement and maintains high precision without time loss.
Data Source
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AI summary
The invention relates to a measurement system (1) comprising: - A base unit (2) having a measurement unit (22) and a mode detector; - A sensor head (5) for detecting a physical quantity, which is detachably electrically connected with the base unit (2), the sensor head (5) comprising: ∘ a sensing element (51) which provides an electrical property, ∘ an identification unit (54) to provide an electrical property or an identification signal, wherein the mode detector (24) is configured to obtain an identification signal from or by means of the identification unit (54), wherein the measurement unit (22) is configured to operate the sensing element (51) to obtain a sensor signal according to one selected operating mode selected from multiple operating modes.