Hello, I'm glad to answer this question for you. What we usually call: gold detection instruments, also called gold purity detectors, gold appraisers, etc. These are common names! The professional name is X-ray fluorescence spectrometer, also known as XRF. The analysis method of the equipment is that an X-ray detector with a certain energy resolution simultaneously detects various energy characteristic X-rays emitted by the sample, and the amplitude of the detector output signal is proportional to the received X-ray energy. The energy and intensity of the detector output signal were analyzed by energy spectrometer, and the samples were analyzed quantitatively and qualitatively. X-ray fluorescence spectrometry is the top technology in precious metal industry. But some of these instruments have their own computers, and some automatically have computers. X-ray fluorescence spectrum gold detector, for many people, is a strange instrument, in order to understand more intuitively "what is X-ray fluorescence spectrum gold detector?" Here, Xi Fan Bian Xiao first gives you some pictures of the X-ray fluorescence spectrum gold detector, and first understands the gold detector from the appearance, and has an intuitive feeling. Theoretically, we will explain it again. I think everyone's understanding will be more thorough Directly above the picture:

This model is Xifan EXF9600 gold detector, which is the most advanced and representative practical gold detector in China.

Xifan EXF9600 gold detector, high-strength sheet metal bracket and engineering plastic shell improve the external resistance to high-voltage damage of the instrument.

inside

1, proportional counting box detector Si-PIN 145 kev 5. ?

2. Intelligent signal detection electronic circuit. ?

3, high and low voltage power supply. ?

4. x-ray tube?

5. Integrated industrial computer (printer)

Two. operating characteristic

1, professional precious metal detection, coating thickness detection, especially gold-doped iridium can effectively detect iridium. ?

2. Intelligent precious metal detection software is a supplement to the instrument hardware. ?

3. Any number of optional analysis and identification models. ?

4. Independent matrix effect correction model. ?

5. Multivariable nonlinear recycling program?

Three. application area

1, content detection of precious metals such as gold, platinum and silver and various jewelry. ?

2. Measurement of metal coating thickness and determination of electroplating solution and coating content. ?

3, precious metal processing and jewelry processing industry, banks, jewelry sales and testing institutions, electroplating industry. ?

4. University laboratories. ?

5, especially the content detection of gold and gold ornaments. ?

Four. The main advantages of gold prospecting

1) Gold and silver jewelry can be identified qualitatively within 3 seconds, and the accurate content of jewelry can be automatically calculated within 30 seconds to 60 seconds?

2) The sample does not need physical and chemical treatment, that is, nondestructive testing of gold and silver ornaments?

3) Analysis range: 0.3%-99.99% of gold, platinum, silver and palladium can be analyzed?

4) The safety performance index meets the requirements of national standards (the light excitation source is MO target X-ray tube)?

5) With automatic temperature and humidity compensation function?

6) Meet the most stringent radiation protection standards, and have a simple sample placement and consumables replacement mode (sliding cover design)?

7) The probe has high pointer, good performance and long service life; ?

8) Brand-new 32-bit software and hardware system with reliable operation and high efficiency.

9) The world is the first to introduce advanced camera positioning technology into the field of jewelry detection. The camera positioning system can not only make the jewelry detection more intuitive, but also focus the X-ray fluorescence on the target position, and print out the photos of the exact position of the detected jewelry corresponding to the detection results together with the calculation report. ?

10) The integrated industrial computer is in the cabinet, and no external computer is needed; Electric lock with door lock makes daily management more convenient.

Verb (abbreviation of verb) Precautions in the use of instruments

There are many factors that affect the detection results of XRF gold purity detector. Due to the special situation of jewelry products and the limitation of method principle, inspectors should know and be familiar with the following factors that affect the results when using this method (these factors will have a great influence on the collection of characteristic spectral line intensity under different circumstances, and even cause misjudgment):

A) There are great differences in the composition and content of elements contained in the tested samples and reference materials; ?

B) electroplating or chemically treating the surface of the test sample; ?

C) measuring time; ?

D) the shape of the sample; ?

E) the area measured by the sample; ?

F) What is the content of precious metals; ?

The results of XRF spectrometer usually need to be fully understood. Due to different jewelry products, different instruments and different quality levels of testers, it is suggested that the acceptance range of test results should be selected in the following range. With the decrease of noble metal content, the acceptable range will increase. The error range of the measurement results is 0. 1%-3%, which can also be determined according to the agreement of the entrusting party. In case of dispute, the analysis results of GB/T 9288, GB/T 1 1886 and QB/T 1656 shall prevail.