Small Measuring Device Base Point Stabilization
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Solution Overview
Problem
Dial gauges and lever-type dial gauges experience position and posture shifts during base point setting and measurement start instructions, leading to errors in subsequent measurements due to user operations.
Innovation Solution
A small-sized measuring device equipped with a position detector, timer, and central control unit that sets the base point after a standby time, allowing for relative position measurement and optional resetting at intervals, reducing the need for direct user interaction and minimizing posture shifts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user operates buttons to set the base point and start measurement, then the base point can be set and measurement can begin, but the position and posture of the measuring device shift, causing measurement errors
Solution Approach 1:
The patent applies preliminary action by setting the base point automatically after a predetermined standby time has elapsed since the start instruction was given. This eliminates the need for manual button operations during the critical measurement phase, thereby preventing position and posture shifts that would cause measurement errors.
Solution Approach 2:
The measuring device performs self-service by automatically setting the base point and initiating measurement without requiring continuous manual intervention. The control unit autonomously manages the base point setting timing and measurement initiation, reducing human operation impact on the measurement system.
2Extent of automation
If manual button operations are used for base point setting, then the device can be controlled, but direct user contact causes position and posture changes leading to measurement errors
Solution Approach 1:
The system performs preliminary base point setting automatically after a predetermined standby time before the measurement phase begins. This timing mechanism ensures that the base point is established without manual intervention during the actual measurement process, improving both automation extent and measurement reliability.
3Productivity
If the base point is set immediately upon instruction, then the measurement process is faster, but position shifts occur during the setting process affecting measurement accuracy
Solution Approach 1:
The patent implements a predetermined standby time period before automatically setting the base point. This time delay allows the measuring device to stabilize its position and posture after receiving the start instruction but before executing the base point setting, thereby maintaining both measurement speed and accuracy.
Data Source
AI summary
A small-sized measuring device includes a position detector that is provided on a main body and detects the position of an object to be measured, a photosensor, and a central control unit that controls overall operation. The photosensor is configured to function at least as an input device configured to accept a base-point setting instruction from the user. The central control unit, when accepting the base-point setting instruction from the user through the non-contact input sensor, performs a base-point setting step of setting the position of the object to be measured detected by the position detector as a base point, and performs a measurement step of measuring the position of the object to be measured as a relative position from the base point.