The micro peristaltic pump is suitable for many general fields such as laboratories, pharmaceutical industry, fine chemicals, water treatment, environmental protection engineering, food and beverage production dosage additives, acid supplementation and alkali defoaming in technological fermentation systems, scientific experiments, etc. The mini peristaltic pump is pollution-free, the liquid only touches the pump tube, the transmission accuracy is high, and it is easy to clean. It can work again only by replacing the pump tube. Laboratory peristaltic pump,micro peristaltic pump,mini peristaltic pump,small peristaltic pump,medical peristaltic pump Changzhou Yuanwang Fluid Technology Co., Ltd. , https://www.ywfluid.com
Faw Technology experts explain the principle of security doors
Security gates are essential safety inspection devices commonly used in high-traffic or high-security areas such as airports, train stations, convention centers, factories, and government buildings. Their primary purpose is to detect whether individuals are carrying metal objects that could pose a threat. But how do these security gates actually work? What is the underlying principle behind their operation? And what are their key features and technical specifications?
According to experts in the field of security equipment, the core principle of a security gate is essentially that of a metal detector. However, instead of using a handheld device, the detection system is integrated into the entire door frame, allowing for full-body scanning as a person walks through. This method ensures comprehensive coverage, reducing the chance of missed threats and increasing efficiency. As a result, security gates are also known as metal detection doors.
In high-risk locations like airports and train stations, security gates are often used in conjunction with handheld metal detectors to enhance the reliability of the screening process. This dual approach helps ensure that even small or hidden metal items are detected.
**Picture:**
When the security gate is in operation, a crystal oscillator within the device generates a sine wave at a frequency range of 3.5–4.95 MHz. This signal is then divided by a frequency divider to produce a lower frequency of approximately 7.6 kHz. The signal is amplified using transistors and inductors before being sent to the panel. At this stage, the total inductance emits electromagnetic waves, which are received by smaller inductors located inside the door frame.
The received signal is compared to a reference signal. If any changes are detected, the output level of the acquisition card is altered. An integrated circuit then scans the data collected from each small inductor within 300 milliseconds to determine the location of the metal object and trigger an alarm. If no change is detected, the system remains inactive.
This is the basic working principle of a security gate. While it may seem straightforward, the technology involved is quite complex. Only experienced and qualified manufacturers can produce reliable and accurate security gates, given their critical role in public safety. It's important to choose a reputable brand and supplier to ensure the highest level of performance and safety.
**Main Functions of a Security Gate:**
1. Audio and visual alarm system
2. Adjustable operating frequency
3. Positional alarm display
4. Strong resistance to interference from other electrical devices
5. Uniform magnetic field distribution
6. Advanced signal processing technology
**Key Technical Specifications:**
1. External power supply: 215V–230V, 50/60Hz
2. Power consumption: 35W
3. Operating temperature: -20°C to 45°C
4. Transport weight: Approximately 95kg
5. Overall unit weight: Approximately 85kg
6. Battery: 1 x 9V battery
7. Dimensions: 2200 (H) x 800 (W) x 720 (D) mm
8. Passage size: 2050 (H) x 760 (W) x 700 (D) mm
Understanding the working principle and technical parameters of a security gate is crucial for anyone looking to implement or maintain such systems. For more detailed information or assistance, feel free to contact our security experts, who will be happy to provide further guidance.
**Article Source:** The Wing Wing Security Inspection Network http://