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Let‘s talk about sensors by Dr Block

Let‘s talk about sensors by Dr Block

著者: All About Sensors
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The podcast series by Dr. Thomas Block Welcome to AllAboutSensors, the podcast dedicated to the invisible technology that powers our modern world. Hosted by an industry expert and product manager with deep roots in solid-state chemistry and Physics, this show bridges the gap between complex sensor engineering and the consumer electronics we rely on every day. We explore the cutting-edge developments driving the next generation of smart devices, wearables, and robotics.All About Sensors 博物学 科学 自然・生態学
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  • Die Fibunacci Reihe in Kunst und Natur
    2026/10/11

    Die Fibonacci-Folge ist eine unendliche Reihe natürlicher Zahlen (0, 1, 1, 2, 3, 5, 8, usw.), bei der jede Zahl die Summe der beiden ihr vorangehenden Zahlen ist.


    Historischer Ursprung: Benannt ist die Folge nach Leonardo Fibonacci, der damit im Jahr 1202 das Wachstum einer Kaninchenpopulation modellierte. Das Prinzip war jedoch schon in der Antike in Griechenland sowie in Indien (unter anderem zur Untersuchung von Versmaßen in der Poesie) bekannt.


    Mathematische Eigenschaften: Je weiter die Folge fortschreitet, desto mehr nähert sich der Quotient zweier aufeinanderfolgender Fibonacci-Zahlen dem Goldenen Schnitt (ca. 1,6180) an. Die Glieder der Folge lassen sich durch verschiedene Methoden berechnen, darunter das Pascalsche Dreieck oder die Formel von Moivre-Binet.


    Vorkommen in der Natur: Die Zahlenfolge beschreibt zahlreiche Wachstumsmuster in der Biologie. Typische Beispiele sind die spiralförmige Anordnung von Blättern, Blüten und Samen (etwa bei Sonnenblumen oder Fichtenzapfen), der Ahnenstammbaum von unbefruchteten männlichen Bienen (Drohnen) sowie die Anzahl möglicher Strukturvarianten bei bestimmten Fettsäuren.


    Kunst und Kultur: Aufgrund ihrer besonderen Ästhetik und Verwandtschaft zum Goldenen Schnitt wird die Folge häufig in Kunst, Architektur, Literatur (z. B. in Dan Browns Sakrileg) und Musik (z. B. bei der Band Tool) als strukturelles Element aufgegriffen.



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    13 分
  • Zero Bars, Infinite Reach: The Microscopic Symphony Turning Smartphones into Orbital Beacons
    2026/10/09

    Terrestrial mobile networks rely on a fragile ground infrastructure vulnerable to storm damage and power outages, but modern smartphones can bypass failed local grids by connecting directly to Low Earth Orbit satellites. Because these fast-moving orbital links face severe Doppler shifts, extreme bandwidth constraints, and signal attenuation through walls and human bodies, devices restrict traffic to vital emergency payloads and require users to aim the handset outdoors. To align a narrow, power-efficient transmission beam, smartphones merge data through real-time sensor fusion: GNSS calculates exact positions and orbital trajectories, an IMU tracks 3D spatial tilt to prevent body shadowing, and a TMR magnetometer filters internal electronic noise to establish an accurate heading toward the satellite. Finally, onboard barometric pressure sensors solve the Z-axis problem by providing critical vertical elevation for rescue teams, establishing a decentralized communication model resilient against both natural disasters and deliberate ground network shutdowns.



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    43 分
  • Tiny sensors that detect indoor chemicals, the hidden threat at your home
    2026/09/28

    The Bosch BME680 is a highly compact, 4-in-1 environmental sensor designed to measure air pressure, temperature, humidity, and gas (volatile organic compounds) to improve indoor air quality and enable smart tracking.


    The Problem: Modern, highly insulated buildings trap volatile organic compounds (VOCs) emitted by everyday items and human breath; accumulating VOCs can cause headaches, reduce concentration, and lower overall productivity.


    Sensor Technology: The BME680 detects these VOCs using a heated tin dioxide (SnO2) metal oxide layer. As different gases flow over the heated surface, the sensor measures the resulting changes in electrical conductivity.


    High Precision: The integrated air pressure sensor boasts an accuracy of ±12 Pa, which allows it to determine altitude changes precisely down to ±1 meter. This makes it ideal for accurate indoor navigation, such as pinpointing a user's exact floor within a multi-story building.


    Compact Design: Measuring just 3 x 3 x 0.95 mm³, the chip is exceptionally small and utilizes intelligent algorithms to ensure low power consumption.


    Applications: Because of its energy efficiency and size, it is actively deployed in smart home electronics like the Bosch Smart Home Twinguard smoke detector. It is also highly suited for mobile IoT applications, wearables, elder care monitoring, and personalized weather stations.



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    23 分
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