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  2. Thermopile laser sensor - Wikipedia

    en.wikipedia.org/wiki/Thermopile_laser_sensor

    Figure 1: [1] Thermal sensors are available in various sizes. Thermopile laser sensors (Fig 1) are used for measuring laser power from a few μW to several W (see section 2.4). [2] The incoming radiation of the laser is converted into heat energy at the surface. [3] This heat input produces a temperature gradient across the sensor.

  3. Thermopile - Wikipedia

    en.wikipedia.org/wiki/Thermopile

    A thermopile is an electronic device that converts thermal energy into electrical energy. [1] It is composed of several thermocouples connected usually in series or, less commonly, in parallel . Such a device works on the principle of the thermoelectric effect , i.e., generating a voltage when its dissimilar metals (thermocouples) are exposed ...

  4. Heat flux sensor - Wikipedia

    en.wikipedia.org/wiki/Heat_flux_sensor

    Heat flux sensors are used for a variety of applications. Common applications are studies of building envelope thermal resistance, studies of the effect of fire and flames or laser power measurements. More exotic applications include estimation of fouling on boiler surfaces, temperature measurement of moving foil material, etc.

  5. Photovoltaic system performance - Wikipedia

    en.wikipedia.org/wiki/Photovoltaic_system...

    Irradiance can be measured in the same orientation as the PV panels, so-called plane of array (POA) measurements, or horizontally, so-called global horizontal irradiance (GHI) measurements. Typical sensors used for such irradiance measurements include thermopile pyranometers, PV reference devices and photodiode sensors. To conform to a specific ...

  6. U.S. economy grows at 3,1% pace in third quarter, an ... - AOL

    www.aol.com/news/u-economy-grows-3-1-133501601.html

    Inflation hit a four-decade high 9.1% in mid-2002. Eleven interest rate hikes by the Federal Reserve in 2022 and 2023 helped bring it down — to 2.7% last month. That is above the Fed's 2% target.

  7. Trump won't kill green energy [Video] - AOL

    www.aol.com/finance/trump-wont-kill-green-energy...

    Trump will probably make a show of eviscerating Biden’s climate plans while rebranding some of them as his own. Markets, in the end, may move in more or less the same direction.

  8. Woman freed from prison after new evidence contradicts ...

    www.aol.com/woman-freed-prison-evidence...

    A woman who has sat in prison for more than a decade was released Tuesday after new evidence contradicted accounts that she helped a hitman take out an innocent victim 25 years ago in the Bronx.

  9. Gardon gauge - Wikipedia

    en.wikipedia.org/wiki/Gardon_gauge

    While heat flux sensors can be made according to various designs, the sensor of a Gardon gauge consists of a foil connected to the sensor body at its external radius, and connected to a thin wire at the center, named after its originator Robert Gardon. [1] The foil center and side are the hot- and cold joint of a thermocouple respectively. When ...

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