Security door, detector correct purchase method
1 high level of security features
The requirement of high security for metal detection doors is required, including the following factors:
Uniform magnetic field uniformity is the key to 100% detection rate;
• Security inspections must be sufficient to detect any dangerous metal items, regardless of their location and angle of entry;
· The security check must be sufficient to detect people passing under any speed;
· Ability to detect both ferrous and non-ferrous metals at the same time.
2. High level of identification
It is required to be able to distinguish small amounts of hazardous metal items (such as small arms) from various metal substances carried by individuals.
Resolving power is based on the following factors:
Uniformity of magnetic field distribution;
· Various analytical capabilities of metal substances;
· immunity to external motor noise interference;
• immunity to external mechanical interference.
3. Excellent (noise) immunity
Noise interference is an important factor affecting the performance of metal detection gates. The noise interference is divided into the following types:
Instantaneous noise: Noise generated by motors, electronically controlled locks, and power cords that share the same load;
· Intermittent noise: RF noise generated by the power supply device on voltage;
Noise generated by other nearby metal detectors;
Noise generated by moving or vibrating metal mass.
4. Proper equipment rate
To consider the proper rate of equipment, observe from two points:
· Whether to use SMD technology to assemble electronic substrates;
• Whether the control panel host performs functional tests.
The metal detector door with high efficiency should not only have the above characteristics, but also have different requirements for the safety of use, the ease of operation, and the practicality of the product.