Electronic Design
  • Resources
  • Directory
  • Webinars
  • CAD Models
  • Video
  • Blogs
  • More Publications
  • Advertise
    • Search
  • Top Stories
  • Tech Topics
  • Analog
  • Power
  • Embedded
  • Test
  • AI / ML
  • Automotive
  • Data Sheets
  • Topics
    - TechXchange Topics --- Markets --AutomotiveAutomation-- Technologies --AnalogPowerTest & MeasurementEmbedded
    Resources
    Electronic Design ResourcesTop Stories of the WeekNew ProductsKit Close-UpElectronic Design LibrarySearch Data SheetsCompany DirectoryBlogsContribute
    Members
    ContentBenefitsSubscribeDigital editions
    Advertise
    https://www.facebook.com/ElectronicDesign
    https://www.linkedin.com/groups/4210549/
    https://twitter.com/ElectronicDesgn
    https://www.youtube.com/channel/UCXKEiQ9dob20rIqTA7ONfJg

    Latest from Automotive

    Renesas Electronics
    Automotive

    Renesas Reveals Automotive Processor Roadmap

    Nov. 27, 2023
    ATP Electronics and Dreamstime, Mr.siwabud-Veerapaisarn_139840866
    Memory

    Ensuring Robust Embedded-Memory Solutions in Automotive Apps

    Nov. 21, 2023
    Dreamstime_Theerapong28_116018241
    Dreamstime Theerapong28 116018241
    Learning Resources

    Achieving Functional-Safety Compliance for Motor-Control Systems

    Nov. 20, 2023
    Synopsys
    Processors

    Major Player Enters RISC-V Arena

    Nov. 20, 2023
    Power

    This Week in PowerBites: Silicon Caps, Smart Nomograms, and H2 from Seawater

    Nov. 16, 2023
    iStock_179196149
    Power

    Automotive-Grade MCU Controls Brushless DC Motors

    Nov. 15, 2023
    Texas Instruments and Dreamstime_gopixa_127981926
    Communications Dreamstime Gopixa 127981926
    Sponsored

    Upgrade Optoisolation Devices with Pin-to-Pin Semiconductor-Based Replacements

    Nov. 15, 2023
    116265799 © Thongchaipeun | Dreamstime.com
    Power

    Automakers Will Never See Semiconductors the Same Way

    Nov. 14, 2023
    What’s the Future for EV Battery Material?
    Automotive

    What's Next for EV Battery Evolution?

    Nov. 14, 2023
    Www Electronicdesign Com Sites Electronicdesign com Files Rain Sensor Fig1
    1. Markets
    2. Automotive

    Build Your Own IR Windshield Rain Sensor (.PDF Download)

    Dec. 21, 2017
    Build Your Own IR Windshield Rain Sensor (.PDF Download)

    In this article, we implement a rain and ice sensor by analyzing the reflection of an infrared (IR) light source. This project uses proven techniques based on multiple reflections of IR light in the internal walls of the target glass. It will aim to increase the capabilities of standard components by adding technical advantages offered by the LED device, such as increasing the power emission using pulsed energy applied 10 times using high current strikes at a 1% duty cycle.

    Application

    The most common practice in the detection of raindrops on a windshield involves sensing infrared light conducted through the internal walls of the windshield glass (Fig. 1). In some cases, these reflections are enhanced by adding other physical components to the glass.

    Www Electronicdesign Com Sites Electronicdesign com Files Rain Sensor Fig1

    1. Internal reflection principle used in the most common rain sensors.1

    When raindrops are present on the external surface of the glass, a refraction of light happens and takes away part of the initial light stream. This results in an attenuated beam of IR light as compared to the original conditions (without the presence of water).

    Download

    Comments

    To join the conversation, and become an exclusive member of Electronic Design, create an account today!

    I already have an account
    Electronic Design
    https://www.facebook.com/ElectronicDesign
    https://www.linkedin.com/groups/4210549/
    https://twitter.com/ElectronicDesgn
    https://www.youtube.com/channel/UCXKEiQ9dob20rIqTA7ONfJg
    • About Us
    • Contact Us
    • Advertise
    • Do Not Sell or Share
    • Privacy & Cookie Policy
    • Terms of Service
    © 2023 Endeavor Business Media, LLC. All rights reserved.
    Endeavor Business Media Logo