Integrated Displacement and Electrostatic Potential Sensor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electrostatic measurement sensors require manual distance compensation, leading to inaccurate potential measurements and increased installation costs when used separately with displacement sensors.
Innovation Solution
Integration of an ultrasonic displacement sensor with an electrostatic measurement potential sensor, where the displacement sensor measures distance and corrects the potential sensor's readings automatically, ensuring accurate measurements regardless of distance changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual distance measurement and compensation methods are used, then installation cost is reduced, but measurement precision deteriorates due to manual operation errors
Solution Approach 1:
The patent combines the displacement sensor and potential sensor into a single integrated device. The displacement sensor automatically measures the distance between the sensor and the electrified body, and this distance information is used to correct the potential measurement values. This merging eliminates manual distance measurement and compensation operations, thereby improving measurement precision while keeping installation cost low as a single device is installed.
2Measurement precision
If separate displacement sensor and potential sensor are used, then measurement precision can be improved, but device complexity increases and installation cost increases
Solution Approach 1:
The patent integrates the displacement sensor and potential sensor into one unified device with a single sensor probe. This merging maintains the measurement precision benefits of having both sensors while reducing device complexity by eliminating the need for two separate sensor systems and their respective mounting structures.
Solution Approach 2:
The integrated sensor device performs multiple functions: it simultaneously measures both the distance to the electrified body and the electrostatic potential. The displacement sensor provides distance measurement capability while the potential sensor measures electrostatic potential, and the controller integrates both measurements to provide corrected potential values. This multi-functionality reduces the number of devices needed while maintaining measurement precision.
3Measurement precision
If constant distance between sensor and electrified body is maintained, then measurement precision is improved, but ease of operation deteriorates when measuring moving objects
Solution Approach 1:
The patent implements a feedback mechanism where the displacement sensor continuously monitors the distance between the sensor and the electrified body. This distance information is fed back to the controller, which then applies appropriate correction factors to the potential measurement values. This allows accurate measurements even when the distance varies, such as when measuring moving objects or objects on rolls, eliminating the need to maintain constant distance.
Solution Approach 2:
The patent changes the working parameter from fixed distance to variable distance with dynamic correction. Instead of requiring the sensor to maintain a constant distance from the electrified body, the system allows distance to vary and compensates by applying correction factors based on the measured distance. This enables ease of operation when measuring moving objects while maintaining measurement precision through mathematical correction.
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 solution eliminates user inconvenience, reduces installation costs, and provides accurate potential measurements for moving objects or changing distances, such as those around rolls, by automatically compensating for distance variations.
Implementation Method 1
a displacement sensor measuring a distance
Implementation Method 2
measuring a distance
Implementation Method 3
electrostatic measurement potential sensor for ESD measurement
Implementation Method 4
Sin current according to the potential difference between the surface of the electrified body and the vibrating Kelvin sensor is induced to the vibrating Kelvin sensor
Implementation Method 5
the change in capacitance that the displacement sensor affects with respect to the potential sensor
Data Source
AI summary
Disclosed are a displacement sensor-combined electrostatic measurement potential sensor, and an operation method therefor, wherein a displacement sensor and an electrostatic measurement potential sensor are provided in one device, and operations thereof are linked; a distance to an electrified body measured by the displacement sensor is stored in a main controller to automatically correct a measurement value of the amount of static electricity obtained by the potential sensor; a change in capacitance that the displacement sensor affects with respect to the potential sensor is applied to correction of an error in a result value measured by the potential sensor, so that it is possible to solve the problem of malfunction according to detection of the electrified body, wherein the distance thereto is changed, and accurately measure the potential; and by manufacturing the device in a small size, easy use is achieved and manufacturing and installation costs are reduced.