Shanghai Haiyue Electronic Technology Co., Ltd. was established in 2006. Since its establishment, the company has been focusing on the R&D, production and sales of safety and electromagnetic compatibility test equipment. The company's main personnel have nearly 20 years of experience and rich practical experience. It has successfully provided a number of large-scale certification laboratories with the planning of test equipment and the supply of corresponding test equipment. The company produces hundreds of various types of safety equipment and test instruments, and undertakes non-standard custom test equipment.

The company has always adhered to the rigorous attitude, adhering to the "integrity as the cornerstone, providing professional technical services, perfect solutions, high-quality testing equipment" concept, constantly improve after-sales service, improve product quality, and strive to become the industry leader By.

The company also sells a number of well-known safety equipment manufacturers at home and abroad, including: US COMPWEST, Italy ATS, US ED&D, Taiwan Whale, Japan SOKEN, Japan KIKUSUI, Japan YOGOGAWA, Taiwan Epps, Japan SOKEN, Japan ESPEC and many more.

The company provides complete EMI and EMS equipment in the field of electromagnetic compatibility. The agent supply includes European EM-TEST, Italian AFJ, German FRANKONIA, Swiss EMC-PARTNER, Japan MORITA and many other manufacturers. At the same time, the company is also the sales outlet of Beijing Kehuan in East China. .

It is our goal to improve the customer's test equipment, improve the customer's test level and increase customer satisfaction. We believe that Haiyue Club is your best partner with high quality testing equipment and professional technical services!

The shielded room is a modern protective device specially designed to prevent radar microwave radiation from harming the human body. The shell is assembled by high-quality cold-rolled galvanized steel plate modules, and is equipped with anti-electromagnetic leakage shielding doors, special ventilation waveguide windows, transmission and fire-fighting waveguides. The observation window is made of imported super-fine silver-plated copper wire cloth and yttrium-potassium fire-proof glass. It has a good perspective effect. The radar microwave radiation leakage value of the shielded room fully meets the limit standard and is higher than the national public exposure limit standard. It can effectively protect the human body working and visiting nearby.

National standard

The national standard for shielded rooms is:

State Secrecy Bureau: "Technical Requirements and Test Methods for Electromagnetic Shielding Room for Handling Confidential Information" BMB3-1999 This standard divides the shielding room into C-class and B-class, and the C-class shielding room has high shielding effectiveness.

The People's Liberation Army: "General technical requirements and test methods for military electromagnetic shielding rooms" GJBz20219-94 military standard is also divided into C-class, B-class, C-class shielding room with the highest shielding effectiveness.

National Defense and Civil Defense of the Chinese People's Liberation Army: "Code for Design of Anti-electromagnetic Pulse for Protection Engineering" GJB3928-2000, "Code for Design of Civil Air Defense Electromagnetic Pulse Protection" RFJ-2001. Test basis: "Measurement method for shielding effectiveness of high-performance shielded room". Composition material

The shielding chamber is made of magnetic material, and the parameter for measuring the magnetic permeability of the material is magnetic permeability. The higher the magnetic permeability, the better the shielding effect. Common common high magnetic permeability materials are cold rolled steel sheets, and the thickness of the shield plays a decisive role. The stronger the magnetic field strength, the corresponding increase in the thickness of the shielding material.

Wiring principle

The battle between unshielded wiring and shielded wiring in shielded rooms has been for many years. With the demand of communication systems, especially the maturity of integrated wiring system theory, there has been a consensus in this industry: unshielded systems and shielding systems have their own The director has a more suitable place.

principle

The shielded room principle is the best choice for shielded systems (shielded rooms, shielded rooms) consisting of shielded cables and shielded components. Through interference and eavesdropping experiments, divergence tests, bit error rate tests, and anti-interference experiments, shielded cables and components must be selected in order to make the network safe and reliable and have excellent anti-jamming performance.

effect

The main function of the shielding room is to isolate the electromagnetic interference from the outside to ensure the normal operation of the indoor electronic and electrical equipment. Especially in the measurement and testing of electronic components and electrical equipment, the electromagnetic shielding room (or darkroom) is used to simulate the ideal electromagnetic environment, and the accuracy of the detection results is improved. The shielding room blocks indoor electromagnetic radiation from spreading to the outside, and the strong electromagnetic radiation source should be shielded and isolated to prevent interference with other electronic and electrical equipment to work properly and even damage the health of the staff.

The shielding room prevents information leakage of electronic communication equipment and ensures information security. The electronic communication signal will propagate to the outside in the form of electromagnetic radiation (ie TEMPEST phenomenon), and the enemy can use the monitoring equipment to intercept and restore. Electromagnetic shielding rooms are an effective measure to ensure information security.

The shielding room JP-88 series produced by our company is in full compliance with national standards and can help customers solve the problem of test interference.

JP-88I Metal Plate Removable Electromagnetic Shielding Machine Room (Room)

JP-88II double-knife double-point metal plate detachable electromagnetic shielding machine room (room)

Product introduction

JP-88 series electromagnetic compatibility shielding room is a professional electromagnetic compatibility testing environment designed and constructed by Shanghai Haiyue for EMC compatibility test.

The series is available in Type I and Type II. It is a detachable electromagnetic shielding room for single-layer steel plate. It is made of 1.5-2 mm high-quality cold-rolled steel plate. The overall galvanized surface is spray-white, and the waveguide window and door frame are blue. Or white,

In addition to meeting the requirements of the shielding room according to international national standards, the products provide professional design technology for shielding rooms that meet the requirements of various electromagnetic compatibility tests in grounding engineering, electrical equipment layout and interface design.

fulfill the standard

1. Test requirements for electromagnetic compatibility standards:

CISPR11 CISPR14-1

CISPR22 CISPR25

ISO11452 ISO7637

ISO 11451

CISPR17

CISPR 16-1-4

2. Electronic computer room design requirements:

GB9361

GBGR2887

EN50147 (GB/T 12190)

3. General technical requirements for military shielding machine rooms:

GJB20219 SJ31470

GJB3928 RFJ-2001

4. Technical requirements for electromagnetic shielding of classified information:

BMB3

Features

1. It is convenient to disassemble and assemble, and has beautiful appearance, which is convenient for users to relocate and expand;

2. The internal electrical equipment is arranged reasonably professionally to meet the requirements of electromagnetic compatibility testing;

3. The key shielding components such as shielding doors, waveguide windows and filters are well-selected, with excellent workmanship and outstanding indicators;

4. Full-featured, can be equipped with telephone, air conditioning, fire protection, monitoring, fiber optics and Category 5 line interface system according to user needs;

5. Unique design interface board for electromagnetic compatibility test, to meet the needs of user test expansion.

6. Standard size, other sizes can be customized according to customer requirements

JP-88I shielding effectiveness

Magnetic field: 14kHz ≥ 55 dB

Magnetic field: 100kHz ≥ 70dB

Magnetic field: 150kHz ≥ 80dB

Electric field: 200kHz~50MHz≥96dB

Plane wave: 50MHz~1GHz≥100dB

Plane wave: 1GHz~10G Hz≥100dB

JP-88II shielding effectiveness

Magnetic field: 14kHz ≥ 75 dB

Magnetic field: 100kHz ≥ 90dB

Magnetic field: 150kHz ≥ 100dB

Electric field: 200kHz~50MHz≥100dB

Plane wave: 50MHz~1GHz≥110dB

Plane wave: 1GHz~10G Hz≥110dB

Plane wave: 10GHz~18G Hz≥100dB

Note:

Another shielded shielded room with higher shielding performance, if necessary, please consult separately

Simple detachable shielded room JP-88IA

Product introduction

The simple detachable shielded room JP-88IA is used in factories for EMI conducted interference and interference power testing.

Shielding performance

10M (Hz) - 1G (Hz) ≥ 70dB

Dimensions

3 meters long 2 meters wide 2.4 meters high 6 square meters