Extech IR250 infrared thermometer disassembly and plans for thermal imaging

TL;DR

Disassembling and exploring components of an infrared thermometer reveals insights into its functionality and future applications.

Transcript

hey everyone a local Sears store was going out of business and had one of these infrared thermometers marked down to 30 bucks so I've kind of been wanting to take one of these apart for a while just to see exactly what kind of sensor they use so let's hack into this thing I've actually already kind of taken it apart it's an egg's tech model ir 250 ... Read More

Key Insights

• 🤒 Infrared thermometers contain analog sensors with intricate design features to isolate long-wave infrared radiation.
• 🍾 The absence of a discrete op-amp indicates specialized analog circuitry integrated into the microcontroller for signal processing.
• 🪩 Exploring innovative solutions like using scanning mirrors or a digital mirror device showcases advancements in thermal imaging technology.
• 🤔 Unique thermal imaging concepts like utilizing tunable filters or thermochromic paint on thin substrates reveal potential future applications.
• 👷 The individual's goal of constructing an infrared imaging device highlights a dedication to exploring novel approaches in temperature measurement technology.
• 📽️ Challenges in accessing a usable analog signal underscore the complexity of disassembling and repurposing commercial devices for innovative projects.
• ❓ Contacting companies like Redshift who specialize in unique thermal imaging technologies demonstrates a commitment to staying informed and exploring collaborative opportunities.

Questions & Answers

Q: What is the significance of the sensor's design with a window to block visible light?

The sensor's design aims to only allow long-wave infrared radiation, crucial for accurate temperature measurements without interference from other light sources.

Q: How does the lack of an onboard op-amp impact the disassembly process?

The absence of an onboard op-amp suggests the presence of specialized analog front-end circuitry integrated into a microcontroller, challenging straightforward signal extraction.

Q: What potential applications are envisioned for constructing an infrared imaging device?

The goal is to utilize the sensor and analog conditioning circuitry to create an infrared imaging device, exploring innovative solutions for temperature measurement and visualization.

Q: How does the individual propose improving current thermal imaging methods?

Ideas include utilizing scanning mirrors or a digital mirror device for faster image capture, presenting promising advancements in thermal imaging technology.

Summary & Key Takeaways

• An individual disassembles an infrared thermometer purchased from a closing Sears store, examining its internal components.

• The sensor in the thermometer is an analog PerkinElmer part with specific design features to detect long-wave infrared radiation.

• Despite challenges in accessing a usable analog signal, the goal is to potentially construct an infrared imaging device for scanning temperatures.