Non-Metallic Salinity Sensor for Road Water Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Continuous use of metal sensors in winter conditions to measure road salinity leads to corrosion and degradation, necessitating frequent replacements, and existing sensors are ineffective beyond a certain salinity threshold, resulting in unnecessary salt distribution and costs.
Innovation Solution
A predominantly non-metallic salinity detection device with a carbon-based sensor mounted in a vehicle's wheel well, using a collection plate and heating member to funnel road water for salinity measurement, allowing continuous monitoring and preventing ice formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal sensor is used to measure road salinity continuously in winter conditions, then salinity measurement capability is maintained, but the sensor corrodes and degrades requiring frequent replacement
Solution Approach 1:
The patent employs a disposable carbon-based sensor that is replaced periodically rather than repaired. The carbon sensor is inexpensive and designed for single-use or limited-use in harsh winter conditions, eliminating the need for maintenance of expensive metal sensors. This resolves the contradiction by accepting short service life to avoid corrosion issues while maintaining measurement capability.
Solution Approach 2:
The patent changes the material parameter of the sensor from metal to carbon-based materials. This fundamental material substitution eliminates corrosion susceptibility while maintaining electrical conductivity necessary for salinity measurement. The carbon-based sensor achieves reliable operation in winter conditions without the harmful corrosion effects that plague metal sensors.
2Productivity
If metal sensors are used continuously to monitor salinity, then measurement continuity is achieved, but replacement costs and maintenance requirements increase
Solution Approach 1:
The carbon-based sensor is designed as a disposable component that can be easily replaced without complex maintenance procedures. This eliminates the need for sensor repair facilities and reduces maintenance personnel requirements while maintaining continuous monitoring capability through simple replacement operations.
Solution Approach 2:
The system enables self-service through the disposable sensor design, where the sensor is replaced automatically or easily by the operating personnel without requiring specialized maintenance skills or facilities. This maintains continuous monitoring while significantly reducing maintenance complexity and costs.
3Reliability
If salting continues beyond the threshold salinity level, then ice prevention is maintained, but additional costs and road surface damage occur
Solution Approach 1:
The patent implements a feedback mechanism where the carbon sensor continuously monitors road salinity levels and provides real-time data to the salt application system. This feedback enables the system to adjust salt application rates dynamically, stopping salting when the threshold salinity level is reached. This resolves the contradiction by preventing both ice formation and unnecessary salt distribution through continuous monitoring and adaptive control.
Solution Approach 2:
The system changes the control parameter from fixed salt application rates to variable rates based on measured salinity levels. The carbon sensor provides continuous salinity measurements that trigger adaptive salt application decisions, optimizing the balance between ice prevention and salt waste reduction.
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
The device provides reliable, continuous salinity measurement without corrosion, optimizing salt distribution by determining when further salting is unnecessary, reducing costs and maintaining road surface integrity.
Implementation Method 1
a heating member positioned adjacent the collection plate and configured to prevent the water from freezing on the collection plate
Implementation Method 2
measure a current flowing through the water. From this current measurement a proportional salinity
Data Source
AI summary
Disclosed is a salinity detection device. The salinity detection device has a collection plate, a mounting frame, and a sensor portion including a predominantly non-metallic sensor. The device may be mounted in a wheel well of a vehicle via the mounting frame and the collection plate may be attached to the mounting frame and positioned behind a wheel such that water on a road surface may be splashed thereon. The collection plate is fluidically connected to the sensor portion so that water may flow through the sensor portion proximate the sensor to measure a current flowing through the water and determine a salinity thereof.