Sensor Apparatus Recessed Shielding Lids Noise Consistency
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Solution Overview
Problem
In sensor apparatuses where multiple gyroscopes are arranged to detect physical quantities along different axes, the varying positions and orientations of the gyroscopes within the case lead to differing influences of noise on each sensor, affecting their accuracy.
Innovation Solution
The sensor apparatus incorporates a sensor arrangement part with recessed parts for each sensor, covered by shielding lids and a shielding cover to provide duplicate electromagnetic noise shielding, ensuring consistent noise influence across all sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple gyroscopes are arranged at different positions and orientations in the case to detect physical quantities along different axes, then the sensor apparatus can measure motion in multiple directions, but the varying positions and orientations cause different noise influences on each sensor, reducing measurement consistency
Solution Approach 1:
The invention applies local quality by providing individual shielding lids for each recessed part containing a gyroscope. Each shielding lid is specifically positioned to cover its corresponding sensor, creating localized electromagnetic shielding zones. This ensures that each sensor experiences consistent noise protection regardless of its position or orientation within the case, thereby maintaining measurement precision across all detection axes while preserving multi-directional detection capability.
2Ease of manufacture
If sensors are left exposed from the case as in prior art, then the structure is simpler and easier to manufacture, but electromagnetic noise can enter and affect the sensors differently depending on their positions
Solution Approach 1:
The invention implements the nesting principle by placing shielding lids within the case structure that specifically cover each recessed part containing a sensor. The shielding lids are nested inside the case interior, creating a hierarchical shielding system where the case provides outer protection and the individual shielding lids provide inner protection. This nested approach effectively blocks electromagnetic noise from reaching the sensors while maintaining a relatively compact and manufacturable structure.
3Reliability
If duplicate electromagnetic noise shielding is provided by both shielding cover and shielding lids, then noise influence consistency is improved, but the device complexity increases
Solution Approach 1:
The invention applies segmentation by dividing the shielding function into two separate components: a shielding cover that covers the case opening and individual shielding lids that cover each recessed part. This segmentation allows each shielding component to be independently designed and positioned to address specific noise protection needs. The modular segmented approach provides comprehensive noise shielding while maintaining ease of assembly and manufacturing, balancing reliability improvement with acceptable device complexity.
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
This configuration effectively reduces the difference in noise influence between sensors, enhancing the accuracy and reliability of the sensor apparatus by providing consistent electromagnetic noise shielding.
Implementation Method 1
shielding lids for shielding against the electromagnetic noise, the shielding lids being arranged between the plurality of recessed parts and the shielding cover and covering the plurality of recessed parts
Implementation Method 2
a shielding cover for shielding against electromagnetic noise, the shielding cover being arranged to cover the sensor arrangement part
Data Source
AI summary
A sensor apparatus (100) according to this invention includes a plurality of sensors (2) for detecting physical quantities; a sensor arrangement part (1) including a plurality of recessed parts (11) that are opened in different directions from each other and in which the plurality of sensors (2) are arranged; shielding lids (7) for shielding against electromagnetic noise arranged between the recessed parts (11) and the shielding cover (4) and covering the plurality of recessed parts (11) to prevent exposure of the plurality of sensors (2) that are arranged in the plurality of recessed parts (11).