Upgrade Your Checkpoint: Walk-Through Metal Detectors and X-ray Baggage Scanners for Maximum Safety
Today, security has become the cornerstone of individual, organizational and even national development. Whether it is a busy international airport, crowded metro stations, solemn government buildings, or exciting large-scale sporting events, an invisible security line of defense always guarding the order and peace. Constitute the core strength of this line of defense, it is efficient, accurate, intelligent security screening equipment – security metal detectors and baggage scanners (X-ray screening machines). They are like silent guards to protect the lives and property of millions of people and the stable operation of society.
What’s the working principle of metal detectors and the evolution of technology?
l Core Principle: Law of Electromagnetic Induction
l Transmission and reception: The transmitting coil inside the device is fed with high-frequency alternating current, which generates a rapidly changing magnetic field (transmitting magnetic field).
l Magnetic Field Disturbance: When an object containing metal enters the area of this magnetic field, according to Faraday's Law of Electromagnetic Induction, the changing magnetic field induces eddy currents inside the metal object.
l Secondary Magnetic Field and Signal Detection: These eddy currents themselves in turn generate a secondary magnetic field in the opposite direction to the original emitted magnetic field. The receiving coil sensitively captures this magnetic field change.
l Alarm Trigger: The microprocessor inside the device analyses and processes the signal from the receiving coil in real time. Once the amplitude or characteristics (e.g. phase) of the detected signal change exceeds the preset safety threshold (adjustable sensitivity), the device immediately triggers an audible and visual alarm, accurately indicating the location of the metal object.
What’s the details of core components in security metal detectors?
l Transmitting coil: Energy conversion source, converting electrical energy into magnetic field of specific frequency.
l Receiving coil: Signal capture ‘ears’, accurately detecting magnetic field disturbances caused by metal.
l Signal Processing Unit: The ‘brain’ of the device, including amplification, filtering, digital conversion and intelligent algorithm analysis module, is responsible for analyzing complex signals, distinguishing between different metal types (ferromagnetic/non-ferromagnetic) and sizes, and effectively reducing false alarms.
l Control Panel/User Interface: Operation ‘window’, to achieve the sensitivity adjustment (to adapt to the needs of different places), working mode selection (such as all-metal/discrimination mode), volume control, parameter settings and other functions.
l Alarm device: Feedback ‘system’, through the light (multi-zone positioning light bar) and sound (adjustable volume/tone) instantly prompts the discovery of metal objects.
What’s the security scanning systems with metal detection main types and application scenarios?
1. Handheld Metal Detectors: Features: Compact and lightweight, flexible operation, battery-powered, economical and practical.
Applications: Accurate rechecking (locating the metal position) for people who pass through the security gate alarm; Quick spot check for small items (bags, electronic equipment) with you; Basic security check for large events, schools, examination halls, prisons, factories and entrances and exits; Security patrols; Spot checking.
2. Security check gates (walk-through metal detectors):
Features: High-volume, high-efficiency, contactless screening, multi-zone alarm.
Applications: Rapid initial screening of personnel at airports, stations, subways, ports and other transportation hubs; Personnel access control at large venues (stadiums, exhibition centers), government buildings, courts, prisons, and important factories; Admission security at large events (concerts, races); Anti-theft and anti-loss inspection at warehouses of valuables, jewelry shops, and electronic factories.
What’s the security checkpoint detector technological evolution and intelligent enhancement?
l Multi-zone display: from a single alarm to accurate display of body height zones (head, chest, waist, legs, feet) where metal is located on both sides of the door.
l Intelligent identification and anti-interference: advanced algorithms to effectively distinguish between everyday small metals such as coins, keys, belt buckles and other threatening items such as control knives, guns, etc., significantly reduce the rate of false alarms; stronger resistance to environmental electromagnetic interference.
l Counting and networking: Built-in passenger flow counter; supports network connection for remote monitoring, data management and centralized configuration.
l Fine adjustment of sensitivity: Different sensitivity can be set for different height zones to adapt to more complex needs.
l Ergonomic design: lighter handheld device; more beautiful, solid, in line with modern aesthetic design of the security gate.
What’s the security baggage scanner (X-ray screening system) working principle and technical mystery?
l Core principle: X-ray imaging technology
X-ray source: one of the core components of the equipment, the emission of penetrating X-ray beam.
Penetration and Absorption: X-rays penetrate the baggage items on the conveyor belt, and different substances (with different densities and atomic numbers) absorb and attenuate X-rays to different degrees.
Signal Acquisition: An array of detectors (L-shaped or U-shaped) located on the other side of the articles receives the X-ray signals that are attenuated in intensity after penetrating the articles and converts them into electrical signals.
Image Reconstruction and Display: A powerful computer system processes the massive electrical signals collected by the detectors and applies complex algorithms (e.g., filtered inverse projection) to reconstruct the two-dimensional projection image of the objects inside the luggage, which is displayed in real time on the operator's monitor. Different substances present different colours (usually orange for organic substances, blue for inorganic substances and green for mixtures) and shape contours.
What’s the dual-energy X-ray technology?
l Technology Principle: X-ray source alternately or simultaneously emits high-energy and low-energy X-ray beams of two different energies.
l Substance Recognition: There are significant differences in the absorption characteristics of different substances (especially organic and inorganic substances) for high and low energy X-rays. The detector receives the signals at the two energies separately.
l Image Processing: The computer analyses the data of high and low energy signals through special algorithms, which not only shows the shape density, but also effectively distinguishes between categories of substances (e.g., explosives, drugs, metals, liquids, ceramics, etc.).
l Core Advantages: Substance Recognition Capability: Significantly improves the detection rate of dangerous goods (especially organic explosives, drugs) and contraband; Image Clarity: Provides richer, higher contrast image information for easy operator interpretation. Reduced bag opening rate: More accurate identification reduces the frequency of opening bags for inspection of innocuous items and improves passage efficiency.
What’s the airport security scanner detailed core components?
1. X-Ray Generator: Produces a stable, controlled, safety-compliant X-Ray beam. Dual-energy equipment comes as standard.
2. Detector Array: The core sensing component that efficiently and accurately converts X-ray photon signals into electrical signals. ** The higher the number of channels and the denser the arrangement, the higher the image resolution.
3. Data Acquisition System: High-speed, high-precision acquisition and processing of massive electrical signals output from detectors.
4. Image processing unit: equipment ‘brain’, running complex algorithms for image reconstruction, enhancement, pseudo-colour processing, material identification calculations.
5. Conveyor belt system: Smoothly and uniformly conveying the baggage to be inspected through the scanning area.
6. Operator Console and Monitor: Displaying high-definition security check images, providing image processing tools (such as magnification, enhancement, penetration, image pull-back, image storage/playback), alarm management, equipment control and other functions.
7. Radiation protection system: Containing lead curtains, equipment shell shielding, etc., to ensure that the radiation dose in the operation area is far below the safety standard, to protect the staff and public health.
8. Penetrating power: Expressed in millimetres of steel plate equivalent, it measures the ability of the equipment to penetrate dense objects (e.g. lead shielding).
9. Spatial Resolution: Expressed in millimetres or AWG line numbers, reflecting the ability of the device to distinguish between minute objects or details (e.g., thin wires, blade edges).
10. Material resolution (dual-energy specific): the ability to distinguish between substances of different atomic numbers (e.g., distinguishing between aluminium and iron, identifying contraband in organic matter).
11. Image Processing Functions:** such as high penetration display, organic matter rejection, inorganic matter rejection, image enhancement, super enhancement, image pull-back and other auxiliary judgement functions.
12. Throughput rate: The number of parcels that can be effectively inspected per unit of time (usually hours), which directly affects the channel efficiency.
13. Safety: Radiation leakage dose must strictly comply with international (such as IEC, FDA) and national standards (such as GB).
Extremely wide range of application scenarios of security metal detectors and baggage scanners:
l Aviation Security: Checked baggage and hand baggage screening at airports is the most central line of defence for aviation security.
l Land and sea transport: Luggage and parcel security check at train stations, coach stations, underground stations, and port passenger terminals.
l Critical Infrastructure: Entrance screening for government agencies, embassies, nuclear power plants, power facilities, communication hubs, data centres, etc.
l Large Events and Public Places: Entrance security for stadiums, exhibition centres, museums, libraries, large shopping malls, hotels, schools.
l Logistics and Express: Security check of mail and express parcels to prevent the transport of dangerous and prohibited goods.
l Justice and Customs: Contraband seizures at prisons, detention centres, courts, and customs ports.
Securina Detection Systems: Your Trustworthy Expert in Security Screening Equipment Solutions
Securina Detection System got more than ten years of deep ploughing the field of security detection, always committed to become the world's leading supplier of security technology and product solutions. We deeply understand the great responsibility of security, and as a driving force, continuous innovation, excellence, for customers to build an impregnable security line of defence.
Independent research and development, leading science and technology: Securina has a strong R & D centre, bringing together top talents in the fields of optics, electronics, software, machinery and so on. We have a number of national patents and independent intellectual property rights in core areas such as X-ray imaging technology, dual-energy material identification algorithms, high-performance detector design, and intelligent image processing (AI-assisted identification in R&D). Our equipment performance parameters against the international first-class level, and through the national authority of strict testing and certification.
Excellent quality, stable and reliable: We have established and strictly implemented ISO 9001 international quality management system. Core components (such as imported brand X-ray tube, high sensitivity detector) carefully selected, manufacturing process excellence, each piece of equipment before leaving the factory are more than 72 hours of harsh aging test and environmental testing, to ensure that in all types of complex environments long-term stable operation, failure rate is far below the industry average.
Full-stack products, in-depth customization: Product lines covered: Channel X-ray screening machines: From economical and practical single-energy models to high-performance dual-energy models (e.g., SA5030, SA6040, -6550, SA100100 series), to meet the needs of different scenarios in airports, subways, stations, venues, logistics, public prosecutors, law enforcement, and so on. Provide high penetration, high resolution and excellent substance identification capability.
Walk Through Metal Detector: Multi-zone accurate alarm, ultra-high sensitivity, intelligent anti-interference, multiple work mode selection (SA300C, SA300S, SA600 series).
Handheld Metal Detector: High sensitivity, strong anti-interference, ergonomic design, waterproof and shockproof (V160, V160E series).
Meanwhile, we provide professional OEM/ODM service for in-depth customization and development according to customer's requirements on branding, function and appearance.
Global vision, local service: Our products are exported to more than 30 countries and regions around the world, and our service network covers a wide range. In China, we have established a perfect distribution and technical service system to ensure:
Professional pre-sales consulting: Senior engineers provide free selection, programmed design, site planning support.
Efficient installation and commissioning: Well-trained technical team provides standardized on-site installation and commissioning services.
Comprehensive systematic training: Theoretical and practical training for operators, administrators and maintenance personnel at different levels.
Quick response after-sales service: Provide 7x24 hours telephone technical support, promise 24 hours response, 48 hours to solve the problem (depending on spare parts). Establish sufficient spare parts library, provide regular preventive maintenance services, to ensure that the equipment is always in the best condition. Lifetime free software upgrade.
Metal detectors and baggage scanners (X-ray security scanning machines), as the core pillars of the modern security system, have greatly enhanced the level of public safety and social operation efficiency with their technological advancement and popularization of application. They are indispensable ‘technological guards’ against potential threats, safeguard people's lives and property, and maintain social order.
In the many manufacturers of security equipment, it is important to choose a partner with deep technical deposits, excellent product quality, perfect service system and a wealth of successful experience. Securina Detection System is such a trustworthy partner. We not only provide excellent performance, safe and reliable security equipment, but also committed to providing professional services and solutions from consulting and planning, equipment selection, installation and commissioning, personnel training to after-sales maintenance of the whole life cycle.
We look forward to working with you to build a safer world!
Official website: www.securinadetection.com
Email: info@securinadetection.com