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  2. Bubble sensor - Wikipedia

    en.wikipedia.org/wiki/Bubble_sensor

    Liquids have a higher dielectric constant than gas; when an air bubble is in a fluid-filled tube the capacitance is reduced and the output voltage rises. [3] The size of the bubble is inversely related to the measured capacitance. Table 1 shows an example of the characteristics of a particular capacitive sensor being researched. [4]

  3. List of Arduino boards and compatible systems - Wikipedia

    en.wikipedia.org/wiki/List_of_Arduino_boards_and...

    Optional CIC61508 safety monitor. Arduino IDE supported via add-in, plus Eclipse-based tools with multicore debugger. MBZ Pro WiFi Atmega328P-PU MaxBlitz: MBZ Pro Mega is an Arduino compatible stand-alone board with a prototyping area and built-in Wi-Fi. Featuring a compact design, it helps to shrink Arduino projects and make it permanent.

  4. Category:Arduino - Wikipedia

    en.wikipedia.org/wiki/Category:Arduino

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  5. Ultrasonic flow meter - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_flow_meter

    Schematic view of a flow sensor. An ultrasonic flow meter is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow. Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and ...

  6. Bubble chamber - Wikipedia

    en.wikipedia.org/wiki/Bubble_chamber

    Fermilab's disused 15-foot (4.57 m) bubble chamber The first tracks observed in John Wood's 1.5-inch (3.8 cm) liquid hydrogen bubble chamber, in 1954.. A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it.

  7. Sonoluminescence - Wikipedia

    en.wikipedia.org/wiki/Sonoluminescence

    The stability analyses of the bubble, however, show that the bubble itself undergoes significant geometric instabilities due to, for example, the Bjerknes forces and Rayleigh–Taylor instabilities. The addition of a small amount of noble gas (such as helium , argon , or xenon ) to the gas in the bubble increases the intensity of the emitted light.

  8. Minnaert resonance - Wikipedia

    en.wikipedia.org/wiki/Minnaert_resonance

    The Minnaert resonance [1] [2] [3] is a phenomenon associated with a gas bubble pulsating at its natural frequency in a liquid, neglecting the effects of surface tension and viscous attenuation. It is the frequency of the sound made by a drop of water from a tap falling in water underneath, trapping a bubble of air as it falls.

  9. Mechanism of sonoluminescence - Wikipedia

    en.wikipedia.org/wiki/Mechanism_of_sonoluminescence

    This bubble is sustained in a standing acoustic wave of moderate pressure, approximately 1.5 atm. [9] Since cavitation does not normally occur at these pressures the bubble may be seeded through several techniques: Transient boiling through short current pulse in nichrome wire. A small jet of water perturbs the surface to introduce air bubbles.