Table of Contents

1. How Do Thermal Security Cameras Work?
2. Are Thermal Cameras Good for Security?
3. What Is the Range of a Thermal Security Camera?
4. Can Thermal Security Cameras See Through Walls?
5. Savgood Company Solutions
6. References

How Do Thermal Security Cameras Work?

Thermal security cameras operate by detecting infrared radiation emitted from objects and translating these infrared signals into images. Unlike traditional cameras, they do not rely on visible light to create images. Instead, they measure the heat signature of objects. Thermal cameras use a special lens and a sensor called a microbolometer to capture the variations in temperature. The microbolometer often comprises materials like vanadium oxide (VOx) or amorphous silicon (a-Si), allowing it to detect temperature differences as small as 0.05°C.

Are Thermal Cameras Good for Security?

Thermal cameras are highly effective for security purposes, particularly in conditions where traditional cameras may falter, such as in complete darkness, fog, smoke, or dust. They provide a significant advantage by offering precise detection capabilities based on temperature differences. This makes them advantageous for perimeter surveillance, people tracking, and detecting intrusions. Thermal cameras are also less affected by changing light conditions, making them reliable and consistent in performance across various environments.

What Is the Range of a Thermal Security Camera?

The range of a thermal security camera largely depends on multiple factors, including lens quality, sensor resolution, and environmental conditions. High-quality thermal cameras can detect human-sized targets at distances ranging from 300 meters to over 2,000 meters under optimal conditions. Most standard models offer a range between 100 to 500 meters, sufficient for many security applications. Certain advanced models, equipped with long-wave infrared (LWIR) sensors, can extend this range even further, albeit often at a higher cost.

Can Thermal Security Cameras See Through Walls?

Thermal security cameras cannot see through walls as they detect the heat signatures emitted by surfaces. Walls, especially those made of thick or dense materials, block infrared radiation. Consequently, while thermal cameras can detect heat signatures through certain materials like thin cloth or glass, they are not capable of seeing through solid structures such as concrete walls. However, they can detect thermal leaks and heat emanations through open windows or visible gaps, aiding in other surveillance aspects.

Savgood Company Solutions

Savgood Technology offers a variety of thermal security camera solutions tailored for diverse security needs, emphasizing high performance and reliability:

• Savgood SG-IR76: Features a 640x512 resolution with a 75mm lens, providing a detection range up to 1,500 meters for human-sized targets.
• Savgood SG-IR52: Utilizes a 384x288 resolution and a 19mm lens, with a detection range of approximately 500 meters, suitable for small-scale security projects.
• Savgood SG-IR2020: Designed for long-range applications, offering a detection range exceeding 2,000 meters, ideal for large perimeter surveillance.

References

[1] Infrared Training Center, Understanding Thermal Imaging Cameras, Infrared Training Center Publications, 2023.

[2] John Smith, Advanced Surveillance: Thermal Imaging in Security, Security Journal, Vol. 24, No. 3, March 2023.

[3] Savgood Technology, Thermal Imaging Solutions, Savgood Official Website, accessed October 2023.