Electromagnetic Shielded Room is a laboratory with electromagnetic shielding function，It can provide the basic environment for the use of the Electrical Electrical and Eye Instruments。The electromagnetic shielding room of Shandong University has both magnetic shielding and sound insulation function，Constructed by Beijing Koro Scholarship Technology Co., Ltd.。

I. Introduction

The electromagnetic shielding Bet365 gamesroom was built in 2020，Room 517, Block A, Block A, Zhixinlou，Occantly 12.13 m2。

2. Architecture structure

The electromagnetic shielding room is mainly shielded、Shielding sound door、Honeycomb -shaped wave guide window、Filter、ground line、Once-sound-sounding structure、Evacuction structure and ventilation lighting system composition，Including the control room and the collection room，Used through the embedded PVC pipe for measuring cables through the wall，Both ends of the pipeline are covered with a dedicated sound insulation end。The control room is used to place the main test equipment，You can monitor the entire experimental process; the collection room is used to collect the test data。Dialogue between the main test and the bet365 live casino bettingsubject pass the monitoring system。

3, shielding the sound insulation system

Use the "House in the House" structure。Inner and outer suite uses metal sound insulation-sound-absorbing modules，The inner metal perforation sound -absorbing board and the inner cover sound room are electromagnetic shielding layers blocked by copper nickel -conducting polyester.。Install a vibration pad in the lower part of the sound insulation suite，The ground is made of a shielded cloth with the decorative layer。

Shielding sound door: one inner and outer suite，Double -road magnetic seal，Double -layer copper comb on both sides and tops of the door frame and door fan，The bottom of the door frame and door fan is copper belt，The volume of sound insulation is 43 db。

Earth Line: Dig 4 ~ 5 2 ~ 3 meters deep pit bet365 live casino bettingoutdoors，Buried in conductive electrode，Putting the ground wire to the wiring port through the ground wires and alloy wires。

Four, ventilation and lighting

Ventilation: ventilation pipeline is one round，Entry and exit the air outlet is located at the top of the room，Each installation of a set of muffler，Honeycomb -shaped wave -like windows installed at the internal air outlet。Establish another typhoon，The air circulation circulation between the collection room and the control room。

Lighting: Energy -saving lamps with cold light source，Install the power filter，The switch is located indoors。

5. Evaluation indicators

Testing through three -party institutions，Communication equipment has no signal in the electromagnetic shielding room of Shandong Bet365 gamesUniversity，Back noise is less than equal to 7.2 decibels (ventilation system shutdown)，The reverberation time is 0.13 seconds (100 ~ 10kHz)，The latter two technical indicators are better than international standards。