Wireless Liquid Sensor with Magnetic Container Wall Contact
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Solution Overview
Problem
Existing liquid characteristic analyzing apparatuses face challenges in quickly measuring liquid characteristics due to the need for electrode level adjustments and attenuation of electromagnetic wave signals in liquids, making wireless communication and measurement difficult.
Innovation Solution
A liquid characteristic analyzing apparatus with a waterproof containing body that exposes a sensor surface to the liquid, converts electrical signals to electromagnetic or sound waves for wireless transmission, and uses close contact means, such as magnetic parts, to maintain signal integrity and facilitate easy immersion and stirring, allowing for quick and accurate analysis without level adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a columnar electrode is used to measure liquid characteristics, then measurement function is achieved, but electrode level adjustment is required which takes time and effort
Solution Approach 1:
The electrode is divided into a sensor part with sensor surface and a containing body. The sensor part is immersed in liquid through an opening in the containing body, while the containing body remains above the liquid level. This segmentation eliminates the need for continuous electrode level adjustment as liquid level changes.
Solution Approach 2:
A containing body acts as an intermediary structure that holds the sensor part. It has a waterproof structure with an opening that exposes the sensor surface to liquid while preventing liquid intrusion into the internal space. This intermediary structure solves the level adjustment problem.
2Ease of operation
If wireless communication through electromagnetic wave signal is implemented, then remote measurement capability is improved, but signal attenuation in liquid makes communication impossible
Solution Approach 1:
The transmission part is extracted from direct contact with liquid and placed inside the waterproof containing body. The electromagnetic wave signal is transmitted through the container wall from the containing body, avoiding signal attenuation that would occur if transmission occurred directly through liquid.
Solution Approach 2:
The container wall acts as an intermediary medium for electromagnetic wave transmission. Instead of transmitting through liquid (which causes attenuation), the signal passes through the container wall material, which has better transmission properties for electromagnetic waves.
3Measurement precision
If the sensor part is always immersed in liquid for measurement, then measurement accuracy is maintained, but liquid intrusion into the internal space causes damage
Solution Approach 1:
The waterproof containing body structure with a sealed opening acts as an intermediary barrier. It allows the sensor surface to contact liquid for accurate measurement while preventing liquid from intruding into the internal space where electronic components are located.
Solution Approach 2:
The containing body employs a waterproof structure (potentially using sealed membranes or coatings) that creates a barrier between the liquid environment and internal components, protecting them while allowing sensor functionality.
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 certain wireless communication and simple, quick measurement of liquid characteristics without signal attenuation, even with varying liquid levels, and allows for efficient analysis of small liquid amounts by maintaining close contact with the container wall, reducing the need for frequent part replacements and improving measurement accuracy.
Implementation Method 1
a transmission part that is configured to convert the electrical signal to an electromagnetic wave signal, and wirelessly is configured to output the electromagnetic wave signal
Implementation Method 2
close contact means is configured to bring a passing portion for the electromagnetic wave signal in the containing body into substantially close contact with an inner wall of the container
Data Source
AI summary
A liquid characteristic analyzing apparatus may include a sensor part to bring a sensor surface into contact with the liquid and outputs an electrical signal; a transmission part to convert the electrical signal to an electromagnetic wave signal or a sound wave signal and wirelessly output the electromagnetic wave signal or the sound wave signal; a containing body that exposes the sensor surface, contains the sensor part and the transmission part, and prevents the liquid from intruding into the inside, the containing body arranged in the container and immersed in the liquid; and close contact structures to bring a passing portion for the electromagnetic wave signal or the sound wave signal into substantially close contact with an inner wall of the container. The close contact structures may include a first magnetic part that is provided in the containing body and a second magnetic part that is arranged outside the container.