Position Detection Sensor Visual Alignment
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Solution Overview
Problem
Existing position detection sensors cannot determine the optimum position for attachment to an actuator, especially when wireless power transfer is not performed, as they rely on magnetic sensor outputs which do not provide positional information in such states.
Innovation Solution
A position detection sensor system that includes a sensor element for detecting a magnet on a piston, a housing, a magnetic body that moves to indicate the magnet's position, and an accommodating portion that allows the magnetic body to be visually recognized, enabling the sensor to be adjusted to an optimal attachment position even without wireless power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a magnetic sensor is used to detect the maximum sensitivity position, then the sensitivity position can be determined, but the piston position cannot be determined and the optimum attachment position cannot be specified
Solution Approach 1:
A magnetic body is introduced as an intermediary element that visually indicates the position of the magnet on the piston. The magnetic body is attracted to the magnet and its position can be observed through a transparent or translucent housing, providing visual feedback about piston position without requiring complex electronic sensing systems.
Solution Approach 2:
The housing is made transparent or translucent to allow visual observation of the magnetic body's position. This optical transparency enables the user to see the magnetic body's location, which corresponds to the magnet's position on the piston, providing visual information about the piston's position state.
2Use of energy by moving object
If wireless power transfer is not performed, then power consumption is reduced, but the ability to determine optimal attachment position is lost
Solution Approach 1:
The magnetic body automatically positions itself in response to the magnet's position on the piston without requiring external power or control systems. The magnetic attraction force naturally causes the magnetic body to move to the position corresponding to the magnet, providing self-indicating functionality that works passively without consuming electrical power.
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 system allows for the specification of an optimum position for attaching the position detection sensor to the actuator, ensuring accurate detection of the piston's position regardless of the power transfer method.
Implementation Method 1
a magnetic body (66, 74) that is displaced to a position corresponding to a position of the magnet
Data Source
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AI summary
A position detection sensor (30) detects the position of a piston (14) inside an actuator (10), and includes a sensor element (52) that detects a magnet (20) mounted on the piston (14), a housing (50) that accommodates the sensor element (52), a magnetic body (66, 74) displaced to a position corresponding to the position of the magnet (20), and an accommodating portion (64, 72) that is provided in the housing (50) and accommodates the magnetic body (66, 74) in a visually recognizable manner.