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I.Overview

The DTZ-01S Noble Metal TC Wire Automatic Calibration System is a fully automated metrology and inspection platform designed specifically for noble metal thermocouple wire production. Its core technology focuses on the measurement of the thermoelectromotive force (EMF) of platinum–rhodium (Pt–Rh) wires and fine wires, calibration of matched Pt–Rh thermocouples, verification of standard Pt–Rh thermocouples, and calibration/verification of industrial noble metal thermocouples. The system integrates a multi-channel low-EMF scanner, digital multimeter, calibration furnaces, and other key components, forming a complete end-to-end solution—from raw wire property testing to calibration of finished thermocouple products. Using a modular control architecture, it supports automated EMF–temperature curve mapping of Pt–Rh wires, realization of standard thermocouple traceability, and on-site calibration of industrial-grade noble metal thermocouples. This enables fully automated, high-accuracy, and intelligent metrology across the entire process, from single-wire testing to paired thermocouple component calibration.

Ⅱ.System Features

1. Flexible compatibility with multiple thermocouple types

Supports standard thermocouples (S, R, B, ST) as well as independent positive/negative single noble metal wires and paired wire testing.

2. Simultaneous batch testing of positive and negative wires

Capable of high-precision simultaneous EMF measurement for up to 8 positive Pt–Rh wires and 8 negative Pt–Rh wires, significantly reducing batch test time and improving throughput via parallel multi-channel processing.

3. Dual-polarity and like-polarity calibration

Performs both forward/reverse polarity verification and like-polarity comparison simultaneously. Multi-dimensional cross-analysis enables result validation, anomaly diagnosis, and dynamic optimization of production parameters.

4. High-temperature furnace with segmented PID control

Multi-stage PID algorithms adaptively regulate the heating process, ensuring precise temperature control and minimal fluctuation across the entire range. Real-time current monitoring and load protection prevent overheating and damage, ensuring stability and safety.

5. Optimized multi-channel low-EMF scanner interface

Automatically adapts to dual-polarity and like-polarity measurement modes, enabling dual-mode simultaneous measurement while simplifying operation and eliminating wiring-related measurement errors.

6. Optimized palladium-point furnace linear heating control

High-precision temperature control algorithms, designed to meet national standards, maintain strict linear heating rates, ensuring accurate reproduction of the palladium point platform for stable EMF measurement references.

7. Manual verification and multi-dimensional data fusion

Provides a fully adjustable manual interface supporting both single and batch acquisition modes. Bidirectional test data are fused via multi-dimensional error compensation algorithms to eliminate system bias and improve accuracy.

8. Non-uniformity testing at specified temperature points

Uses multi-probe arrays to collect EMF data across multiple points at the target temperature, combined with spatial distribution analysis to detect material non-uniformities, ensuring batch consistency and process reliability.

9. Fully automatic, unattended calibration

Multi-threaded control with embedded algorithms automates furnace temperature control, multi-channel real-time monitoring, intelligent data processing, and standardized report generation, reducing operator intervention and improving efficiency and consistency.

10. Visual monitoring interface

Integrates multi-source data display for real-time system status, calibration point temperatures, synchronized multi-channel data, and error analysis. A graphical interface with smart prompts ensures intuitive process control.

11. Intelligent report generation and output

Automatically produces test record tables, supports export of raw data, and ensures standardized, easily accessible calibration documentation.

12. Dynamic temperature curve tracking and historical review

Continuously updates temperature trend curves and allows review of historical data, providing clear visual references and traceability for calibration processes.

Ⅲ.Interface