Linear Displacement Measuring Apparatus Misalignment Detection
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Solution Overview
Problem
Linear displacement measuring apparatuses fail to accurately detect misalignment during installation, leading to incorrect measurement values and potential breakdowns due to non-parallel or strained mounting beyond prescribed tolerances.
Innovation Solution
Incorporation of misalignment detecting means, such as projecting pieces or a pressing plate, within the coupling mechanism to detect excessive displacement between the traveling body and carriage part, preventing further movement and signaling misalignment for user notification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the linear displacement measuring apparatus is mounted beyond prescribed installation tolerance, then the joint absorbs the strain and the traveling body can still travel on the main scale, but the measurement values become incorrect and components may rub or bump together causing breakdown
Solution Approach 1:
The patent incorporates misalignment detecting means that provides feedback when the traveling body deviates from the main scale by an excessive amount. This feedback mechanism alerts the user to installation errors before they cause measurement inaccuracies or component damage, resolving the contradiction by maintaining reliability while allowing some adaptability through the joint.
Solution Approach 2:
The misalignment detecting means performs preliminary detection of installation errors before they lead to incorrect measurements or breakdowns. By detecting excessive deviation early, the system prevents harmful effects while allowing the joint to absorb minor strain, thus maintaining both adaptability and reliability.
2Adaptability or versatility
If the linear displacement measuring apparatus is mounted beyond prescribed installation tolerance, then the joint absorbs the strain allowing operation, but components rub or bump together causing breakdown
Solution Approach 1:
The misalignment detecting means provides feedback when the traveling body exceeds allowable deviation from the main scale, alerting users to installation errors before components suffer damage from rubbing or bumping, thus preserving component durability while maintaining adaptability.
Solution Approach 2:
The detecting means acts as a protective mechanism that identifies excessive misalignment before it causes physical damage to components. By detecting the condition beforehand, it prevents the harmful rubbing and bumping that would otherwise occur, cushioning against potential failures.
3Productivity
If misalignment is not detected, then the apparatus continues to operate, but incorrect measurement values are obtained leading to defective control
Solution Approach 1:
The misalignment detecting means introduces feedback that monitors the relationship between the traveling body and main scale. When misalignment exceeds allowable limits, the system alerts the user, preventing incorrect measurements from being generated while allowing the apparatus to continue operating within tolerance.
Solution Approach 2:
The misalignment detecting means serves as an intermediary between the traveling body and the measurement output. It monitors their relative positions and prevents incorrect measurement data from being produced when misalignment occurs, without stopping operation entirely.
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
Ensures accurate measurement by suspending operations when misalignment exceeds allowable limits, preventing component damage and allowing users to address installation errors before continued use.
Implementation Method 1
an elastic member configured to bias the traveling body toward the main scale
Data Source
AI summary
There is provided a linear displacement measuring apparatus which notifies a user when being installed defectively. A slider includes a traveling body which travels along a main scale on the main scale, a carriage part mounted on an object, and coupling means which couples the traveling body with the carriage part. The coupling means allows relative displacement between the traveling body and the carriage part and biases the traveling body towards the main scale. The coupling means has a connecting rod arranged so as to couple the traveling body with the carriage part via a ball joint. The slider further has misalignment detecting means which detects that the relative displacement between the traveling body and the carriage part exceeds a prescribed allowable range. The misalignment detecting means is a pair of projecting pieces arranged in a vicinity of the connecting rod so that the displacement of the connecting rod is regulated within a predetermined range.