Handheld Salinity Analyzer with Direct Temperature Sensing
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Solution Overview
Problem
Conventional salinity analyzers are not portable, leading to damage during transport, consume battery power unnecessarily due to lack of an off switch, and have delayed and incorrect temperature measurement due to indirect sensing through electrodes.
Innovation Solution
A handheld salinity analyzer with a hollow body, clip for carrying, a detachable battery cover, direct temperature sensing, and a light-emitting lamp indicating salinity levels, allowing safe portability, power conservation, rapid and accurate temperature measurement, and easy salinity judgment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conventional salinity analyzer is carried in a bag or case with other articles, then it can be transported, but the main parts of the salinity analyzer may be damaged
Solution Approach 1:
The device is divided into a main body and a detachable cover portion. The cover portion can be separated from the main body, allowing the user to carry only the compact main body in pockets or bags without the risk of damaging the entire device or its internal components.
Solution Approach 2:
The cover portion is extracted as a separate, detachable component. When not in use, the cover can be removed and set aside, leaving only the essential measuring portion to be carried, thereby reducing the risk of damage during transport.
2Ease of operation
If the user frequently stores the salinity analyzer without turning off the power, then it is convenient, but the battery power is continuously consumed and may be easily discharged
Solution Approach 1:
The device automatically turns off the power when the cover portion is detached from the main body. This self-service mechanism eliminates the need for manual power management by the user, ensuring that the device does not consume battery power when stored or carried without the cover.
Solution Approach 2:
Instead of requiring the user to manually turn off the power before storage, the invention inverts the logic: the act of removing the cover (a natural storage action) automatically triggers the power-off function. This ensures power conservation while maintaining convenience.
3Device complexity
If the temperature sensor is installed within the electrodes, then the structure is compact, but the temperature measurement is delayed and incorrect due to indirect sensing
Solution Approach 1:
The temperature sensor is extracted from the interior of the electrodes and repositioned to directly contact the external surface of the food sample. This extraction allows the sensor to measure the actual sample temperature without the delay and inaccuracy caused by heat transmission through the electrode material.
Solution Approach 2:
The external surface of the food sample serves as an intermediary medium. By placing the temperature sensor in direct contact with this surface, the sensor can accurately detect the sample temperature without requiring heat to pass through the electrode, thus eliminating the measurement delay and inaccuracy.
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
Enables safe and convenient portability, prevents battery power wastage, allows for rapid and accurate temperature measurement, and simplifies salinity judgment with color-coded light indications.
Implementation Method 1
a temperature sensor inserted into the temperature sensor hole of the cell block, and provided with one end connected to the circuit board and the other end exposed to the outside of the depressed part so as to directly contact the food sample
Implementation Method 2
a light emitting lamp installed at one side of the ON/OFF switch, and connected to the circuit board
Data Source
AI summary
Disclosed is a handheld salinity analyzer including a body, in which a circuit board and a battery are installed, a cell block provided with one end inserted into one end of the body and the other end on which a projecting part provided with a salinity sensor hole and a depressed part provided with a temperature sensor hole are formed, a salinity sensor inserted into the salinity sensor hole and provided with one end connected to the circuit board, a temperature sensor inserted into the temperature sensor hole and provided with one end connected to the circuit board, an ON/OFF switch installed on the end of the body, a light emitting lamp connected to the circuit board, and a body cover connected to the end of the body provided with the ON/OFF switch or to the cell block, and provided with an operating piece to operate the ON/OFF switch.