Integrated Computerized Caliper for Thermal Error Correction
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Solution Overview
Problem
Existing vernier calipers with digital measurement indicators require a second operator position for data processing and analysis, leading to inefficiencies, errors, and increased costs due to detachment from the computer, lack of error correction for scale and thermal deformations, and limited express service capabilities.
Innovation Solution
Integration of a digital measurement device, computer, and photo-camera in a single casing with a movable frame, enabling on-site measurement, error correction, and data analysis, along with thermal compensation and visual data recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vernier caliper and computer are used as separate devices, then measurement and data processing can be performed, but operator workload increases and errors increase due to manual data transfer
Solution Approach 1:
The patent combines the vernier caliper measurement device and computer data processing system into a single integrated device. The computer is housed within the caliper body, creating a unified system that eliminates manual data transfer between separate devices, thereby reducing operator workload while maintaining system functionality.
Solution Approach 2:
The integrated device performs multiple functions within a single system: it conducts measurements, processes data mathematically, analyzes results, and stores information. This multi-functionality eliminates the need for separate measurement and computing devices, reducing operational complexity despite the advanced capabilities provided.
2Measurement precision
If vernier caliper is detached from computer, then measurement can be performed, but measurement accuracy decreases due to inability to correct scale and thermal errors
Solution Approach 1:
The computer within the caliper continuously monitors measurement data and applies corrective algorithms based on pre-stored calibration information. The system provides feedback loops that automatically compensate for scale errors and thermal deformation effects, improving measurement accuracy through real-time error correction.
Solution Approach 2:
The system performs preliminary error correction by pre-programming calibration data and compensation algorithms into the computer. Before actual measurements are taken, the system is pre-configured with correction factors for known scale errors and thermal expansion coefficients, enabling automatic compensation during measurement operations.
3Ease of repair
If vernier caliper with digital indicator is used, then measurement capability is provided, but express service and metrological control are impossible after repair
Solution Approach 1:
The integrated computer system enables the caliper to perform self-diagnosis and self-calibration functions. After repair or maintenance, the system can automatically execute metrological control routines and verify measurement accuracy without requiring external equipment, facilitating express service and ensuring measurement reliability through built-in verification capabilities.
Data Source
AI summary
Computerized Caliper consists of measuring bar with fixed jaw, moving frame with moving jaw and a measurement and computer block. Measurement and computer block installed on the moving frame comprises digital measurement device of a vernier caliper, a computer, to which a temperature transmitter is connected, and a photo-camera.