The automatic sample changer used in X-ray diffractometers is a device used for automated sample replacement, aimed at improving the efficiency and accuracy of X-ray diffraction experiments. Driven by an imported stepper motor and controlled by an imported Siemens programmable logic controller (PLC), there is no need for manual sample replacement. The system automatically measures samples continuously and saves data automatically. Multiple samples can be loaded at once for continuous measurement. The main components of an automatic sample changer are: Sample transfer mechanism: usually includes a conveyor belt, elastic pressing plate, and driving motor, responsible for sequentially transferring the test sample plates to the retrieval position. Sample replacement mechanism: generally composed of clamping components, action driving components, and turntable, it can automatically replace the sample plate between the conveyor belt pick-up position and the diffraction instrument sample stage. Sensor module: such as photoelectric sensor module and photoresistor sensor module, used to detect the position of the sample and the working status of the diffractometer, in order to control the circuit module to make corresponding control actions. Control circuit module: Connect and control the collaborative work of the above-mentioned mechanisms and modules to ensure accurate and stable operation of the automatic sample changing process. Power module: provides power support for the entire automatic sample changing device. 2. Working principle of automatic sample changer: After the diffractometer completes the testing of the current sample, the sensor module detects the state change of the diffractometer shutter light and transmits the signal to the control circuit module. After receiving the signal, the control circuit module activates the sample replacement mechanism to move it to the conveyor belt pick-up position and the diffraction instrument sample stage, and clamps the sample plates at the two positions respectively through the clamping parts. Then, the sample replacement mechanism swaps the positions of the two sample plates to complete the sample replacement operation. Next, the conveyor belt starts and transports the next sample board to the pick-up position, waiting for the next sample change. 3. Advantages and characteristics of automatic sample changers: • Improve testing efficiency: It can automatically replace samples during the diffraction instrument testing process without manual intervention, greatly shortening the testing cycle and improving work efficiency. • Reduce human error: avoid operational errors and mistakes that may occur when manually replacing samples, and improve the accuracy and reliability of test results. • Instrument protection: reduces the possibility of instrument failure caused by frequent manual opening and closing of the diffractometer door, and extends the service life of the diffractometer. • Suitable for testing a large number of samples: It can load multiple samples to meet the needs of continuous testing of a large number of samples, and is suitable for high-throughput detection in fields such as scientific research and production. In summary, the automatic sample changer used in X-ray diffraction instruments is an efficient and accurate automated equipment that brings many conveniences and advantages to X-ray diffraction experiments, helping to improve experimental efficiency and quality.

The auto sample changer adopts an imported stepper motor drive and a programmable logic controller (PLC) as the core control system. The selection of these two key components significantly ensures the precision, stability, and long-term reliability of the equipment's operation. The workflow of the auto sample changer is designed to be simple and efficient: The operator pre-loads up to six samples sequentially into designated positions of the sample changer. After setting the measurement parameters via the control system, the sample changer begins operation. Following program instructions, it automatically and accurately delivers each sample in sequence to the measurement position of the X-ray diffractometer.Once the measurement of one sample is completed, the device automatically removes it and swiftly delivers the next sample until all samples are measured. Measurement data is automatically saved, facilitating subsequent review and analysis while reducing recording errors that may arise from manual operations.The entire process requires no manual intervention, allowing the operator to free up time for other tasks and avoiding potential fatigue-related errors from prolonged operation. In addition to the basic auto sample changing function, the equipment also boasts several noteworthy features: Efficiency Enhancement: Enables unattended continuous auto measurement, making it particularly suitable for rapid screening of batch samples or sequential analysis over long periods. Data Consistency: The automated process reduces human intervention, helping to improve the repeatability and comparability of measurement data. Ease of Operation: The PLC-based control system is typically stable and user-friendly, lowering the operational threshold. Flexible Application: Primarily used in fields such as environmental protection, electronics/batteries, and other areas requiring material analysis technologies. This auto sample changer primarily serves the application field of X-ray diffraction (XRD) analysis. Dandong Tongda Science and Technology Co., Ltd. has accumulated experience in the field of analytical instruments. Its TD series of analytical instruments and non-destructive testing equipment are applied in various material research fields. This 6-position (or 12-position) auto sample changer reflects the company's approach of integrating automation technology into traditional testing equipment to enhance overall efficiency. As a functional accessory, it works in coordination with X-ray diffractometers, enhancing the automation capabilities of the host instrument.

The automatic sample changer is driven by an imported stepper motor and controlled by an imported Siemens programmable logic controller (PLC), eliminating the need for manual sample replacement. The system automatically measures samples continuously and saves data automatically. Six samples can be loaded at once for continuous measurement.

The automatic X-ray orientation instrument is a device that uses the diffraction principle of X-ray to determine the crystal structure, orientation, and lattice parameters. It has a wide range of applications in materials science, geology, physics, and chemistry, especially in studying the microstructure and properties of single crystal, polycrystalline materials, and thin film materials. The following will provide a detailed introduction to the working principle, application, and operational precautions of the X-ray crystal orienter. With the advancement of technology, the automatic X-ray orientation instrument devices continues to improve, with higher resolution and easier operation. At the same time, the combination with other analytical techniques such as electron microscopy and spectroscopic analysis makes the analysis of crystal structure more comprehensive and in-depth. In addition, portable and online monitoring X-ray orientation analyzer devices have gradually developed, providing possibilities for on-site analysis and real-time monitoring. In summary, X-ray orientation analyzer is a powerful analytical tool that is crucial for understanding and controlling the microstructure of materials. With the continuous development of technology, its application in various fields will become more extensive and in-depth.

Driven by an imported stepper motor and controlled by an imported Siemens programmable logic controller (PLC), there is no need for manual sample replacement. The system automatically measures samples continuously and saves data automatically. Six samples can be loaded at once for continuous measurement. Overall, as an efficient experimental auxiliary equipment, automatic sample changer play an important role in multiple fields. With the continuous advancement of technology and the increasing demand for applications, the performance and functionality of automatic sample changer will also be further improved and perfected.

The Cryostream Low Temperature Liquid Nitrogen Cooling System (TD-100) used in single crystal X-ray diffractometers offers a range of features, from highly stable and precise temperature control to fast cooling times and integrated automatic filling capabilities. Each iteration of Cryostream expands the list of available functions. It combines elegant design, emphasizing reliability, simplicity, and ease of use. The latest version of the open flow low-temperature gas cooler integrates the controller, pump, and dry air unit into one gas supply module. This minimizes the overall system footprint, simplifies wiring and installation, and improves user experience.

Driven by an imported stepper motor and controlled by an imported Siemens programmable logic controller (PLC), there is no need for manual sample replacement. The system automatically measures samples continuously and saves data automatically. Six samples can be loaded at once for continuous measurement.

Excellent detector, polycrystalline sample X-ray diffraction analysis, precise instrument tuning, excellent resolution

The TD series X-ray crystal analyzer is a large-scale analytical instrument used to study the internal microstructure of materials. It is mainly used for single product orientation, defect inspection, determination of lattice parameters, determination of residual stresses, study of the structure of plates and rods, and investigation of the structure of unknown substances and single crystal dislocations.

The goniometer is the heart of the X-ray diffractometer, and the TD series X-ray diffractometer has extremely high measurement accuracy

We not only provide products, but as a carrier, we pay more attention to the convenience, efficiency, accuracy, and satisfaction that it can bring to our customers' actual work. This is our commitment that we have always upheld. As the most advanced domestically produced X-ray diffractometer, TD-3500 has benefited organizations such as colleges, research institutions, and industrial enterprises in material identification and analysis, receiving high praise. This also confirms our commitment to customer satisfaction. Of course, with the rapid pace of the times and competition, in order to ensure higher customer expectations, we continuously update and improve our product line. Our goal is not only to lead domestically, but also to keep up with the world!

X-ray diffractometer (XRD) is the use of diffraction principle, accurate phase analysis, qualitative analysis and so on. Today, we will introduce some accessories that can be equipped with XRD instruments.