The electronic measuring instrument industry is a basic equipment industry and the foundation of the entire electronics industry. It supports the development and progress of most industries on a very small scale, such as semiconductors, computers, digital televisions, modern communications, aerospace, etc. The participation and support of measuring instruments is unimaginable. There is no doubt that electronic measuring instruments occupies an extremely important position in various industries of the national economy.

The general manager of the company, Zhao Haohua, said that Tonghui Company was founded in 1994 and is a joint-stock private technology-based enterprise integrating R&D, manufacturing and marketing. Starting from a single capacitance measuring instrument, the company has developed four series of nearly 100 varieties, taking into account high, medium and low grades. The products are integrated and serialized to meet the different needs of different users. Ordinary mass products, but also high-tech products with domestic standards. The 4 major series are:

1. Electronic component parameter test instrument

The electronic component parameter tester is a product category with Tonghui advantage and characteristic. It has a high reputation in the domestic market. It is also the advantage project that Tonghui depends on for growth and development. Only the LCR parameter tester can be provided by Tonghui for different measurements. More than 40 products of the object. From handheld to system testing, the bandwidth ranges from 20Hz to 1MHz, and the accuracy ranges from 0.3% to 0.05%.

2. Desktop digital multimeter

With the help of Tonghui's unique high-speed and high-resolution AD (analog-to-digital) sampling technology, Tonghui can currently provide 4 types of desktop multimeters with 4 digits, 50,000 readings, 5 digits, and 6 digits. The 6-digit digital multimeter is the first commercialized precision digital multimeter in China, and its performance can reach the level of similar foreign products. At present, it has launched a new impact on the international-level ultra-high-speed 6-digit digital multimeter.

3. Electrical safety tester

The electrical safety tester is a product developed by Tonghui, which aims at the current international level. Their development idea is to avoid the low-end market, make use of Tonghui's technology, market advantages and customer reputation, and strive to open up the mid-to-high-end market to avoid fierce market and price competition for low-end products. This series of products fully adopts advanced PWM (pulse width modulation) technology, uses a unique and concise operation interface, and can perform independent multi-channel scanning, which will undoubtedly help enrich the current Tonghuihua's transformer and motor testing instruments. Greater promotion.

4. Digital storage oscilloscope

The digital storage oscilloscope DSO is a type of product that the company has invested heavily in in recent years, and it was successfully launched on the market at the beginning of this year. Through the research and development and promotion of this product, in order to comprehensively enhance the company's overall scale and technical strength. At present, Tonghui has basically mastered the design essentials of DSO products, such as software and hardware, high and low frequency, FPGA (field programmable gate array), DSP (digital signal processor), and various interface configurations.