Sensor Cartridge Protrusion and Hermetic Sealing Mechanism
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Solution Overview
Problem
Existing measurement apparatuses face challenges in downsizing sensors without complicating the manufacturing process, leading to increased costs and difficulty in performing droplet applying operations due to the complexity of hermetic closing mechanisms.
Innovation Solution
A measurement apparatus with a moving member that protrudes the sensor from the enclosure, allowing easy droplet application and incorporating a hermetic closing unit with a flexible or elastic component to seal the sensor cartridge, reducing the number of components and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sensor is downsized, then the manufacturing cost is reduced, but the droplet applying operation becomes difficult
Solution Approach 1:
The patent extends the sensor in the longitudinal direction to create a protruding tip that extends beyond the cartridge end face. This dimensional extension allows the droplet application area to be accessible while keeping the sensor body compact, thus maintaining ease of operation despite downsizing the overall sensor structure
2Reliability
If a hermetic closing mechanism is incorporated into the sensor cartridge, then the sensor protection against humidity is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The hermetic closing mechanism is extracted from the sensor cartridge itself and relocated to the measurement apparatus. The apparatus enclosure now provides the hermetic sealing function when the cartridge is inserted, allowing the cartridge to remain simple while still achieving sensor protection against humidity
Solution Approach 2:
The apparatus enclosure serves multiple functions: it houses the measurement components, provides hermetic sealing for the sensor cartridge, and protects the sensor from humidity. This multi-functionality eliminates the need for a separate hermetic mechanism in the cartridge
Data Source
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AI summary
A measurement apparatus to measure a physical quantity related to a measurement target by use of a sensor, comprising: an apparatus enclosure; a control unit to be electrically connected to the sensor; and a moving member including a sensor holding unit to hold the sensor, the moving member being movable to protrude the sensor holding unit outwardly of the apparatus enclosure and further including a conductive member to electrically connect the sensor to the control unit.