Theremino Spectrometer – PhysicsOpenLab (2024)

Flame Test

January 8, 2021English Posts, Light, SpectrometerComments Off on Flame Test

Abstract : In this post we intend to explore the flame test analysis technique, revisited through the use of our grating spectrometer which should allow us to highlight the emission lines of the various elements being analyzed. Introduction In chemistry, the flame test is a simple qualitative analysis technique to …

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Saggio alla Fiamma

January 8, 2021Italian Posts, Light, SpectrometerComments Off on Saggio alla Fiamma

Abstract :In questo post ci proponiamo di esplorare la tecnica di analisi del saggio alla fiamma, rivisitata mediante l’utilizzo del nostro spettrometro a reticolo che ci dovrebbe permettere di evidenziare le righe di emissione dei vari elementi in analisi. Introduzione Inchimica, ilsaggio alla fiammaè una semplice tecnica di analisi qualitativa …

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Spectral Lines Broadening

September 7, 2017English Posts, SpectrometerComments Off on Spectral Lines Broadening

In theAtomic Spectroscopypost, we have learned (and experimented) that the emission spectrum of a chemical element is made up of discrete lines corresponding to the electromagnetic radiation emitted by the electrons of its atoms when they “drop” from a higher energy state to one of less energy. For each transition …

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Allargamento delle Linee Spettrali

September 7, 2017Italian Posts, SpectrometerComments Off on Allargamento delle Linee Spettrali

Nel post sulla Spettroscopia Atomica, abbiamo imparato (e sperimentato) che lo spettro di emissione di unelemento chimico è costituito dalle linee discrete che corrispondono allaradiazione elettromagneticaemessa daglielettronidei suoiatomi quando questi compiono una transizione da uno stato ad energia maggiore verso uno a energia minore. Per ogni transizione tra stati, …

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Porfirine : i Colori della Vita

July 4, 2016Biology, Fluorescence, Italian PostsComments Off on Porfirine : i Colori della Vita

Le porfirine (dal greco porphyrá – porpora), sono una classe di composti chimici la cui molecola è caratterizzata da uno scheletro eterociclico costituito da quattro molecole di pirrolo unite tramite i ponti metinici nella posizione alfa.La struttura dell’anello porfirinico è aromatica, con un totale di 26 elettroni nel sistema coniugato.Una …

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Porphyrins : the Colors of Life

July 4, 2016Biology, English Posts, FluorescenceComments Off on Porphyrins : the Colors of Life

Porphyrins are a group of heterocyclic macrocycle organic compounds, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (=CH−). The parent porphyrin is porphin, and substituted porphines are called porphyrins. The porphyrin ring structure is aromatic, with a total of 26 electrons in the …

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Study of Photoelectric Effect

December 23, 2015English Posts, Quantum Physics, SpectrometerComments Off on Study of Photoelectric Effect

The photoelectric effect is the observation that many metals emit electrons when light shines upon them. Electrons emitted in this manner can be calledphoto-electrons.

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Studio dell’Effetto Fotoelettrico

December 23, 2015Italian Posts, Quantum Physics, SpectrometerComments Off on Studio dell’Effetto Fotoelettrico

Infisica dello stato solidol’effetto fotoelettricoè ilfenomeno fisicocaratterizzato dall’emissione dielettronida una superficie, solitamentemetallica, quando questa viene colpita da unaradiazione elettromagnetica, ossia dafotoniaventi una certalunghezza d’onda.

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Fluorimetry of Edible Oils

December 18, 2015English Posts, Fluorescence, SpectrometerComments Off on Fluorimetry of Edible Oils

Food oils (olive oil, seed oil) have interesting optical properties (absorption, fluorescence) due to the content of optically active compounds, such as chlorophyll, beta-carotene and others. These properties can be used to recognize and characterize the various types of oil.

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Fluorimetria di Olii Alimentari

December 18, 2015Fluorescence, Italian Posts, SpectrometerComments Off on Fluorimetria di Olii Alimentari

Gli olii alimentari (olio d’oliva, olio di semi) presentano interessanti proprietà ottiche (assorbimento, fluorescenza) dovute al contenuto di composti otticamente attivi, come la clorofilla, il betacarotene e altri. Queste proprietà possono essere utilizzate per riconoscere e caratterizzare i vari tipi di olio.

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What is Fluorescence ?

December 15, 2015English Posts, Fluorescence, Quantum Physics, SpectrometerComments Off on What is Fluorescence ?

Fluorescence is the property of some substances to re-emit(in most cases at longerwavelength so atlower energy) the received electromagnetic radiation, in particular they absorb the ultraviolet radiation and re-emit it in the visible.

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Cos’è la Fluorescenza ?

December 15, 2015Fluorescence, Italian Posts, Quantum Physics, SpectrometerComments Off on Cos’è la Fluorescenza ?

La fluorescenza è la proprietà di alcune sostanze di riemettere (nella maggior parte dei casi a lunghezza d’onda maggiore e quindi a energia minore) le radiazioni elettromagnetiche ricevute,in particolare di assorbire radiazioni nell’ultraviolettoe riemetterla nel visibile.

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Black Body Emission

December 4, 2015English Posts, Quantum Physics, SpectrometerComments Off on Black Body Emission

In physics a black body is an ideal object that absorbs all incident electromagnetic radiation without reflecting (and is therefore called black according to the classical interpretation of the color of the body).

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La Radiazione di Corpo Nero

December 4, 2015Italian Posts, Quantum Physics, SpectrometerComments Off on La Radiazione di Corpo Nero

Infisicauncorpo neroè un oggetto (ideale) che assorbe tutta laradiazione elettromagneticaincidente senza rifletterla (ed è quindi detto nero secondo l’interpretazione classica delcoloredei corpi).

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DIY Webcam Diffraction Grating Spectrometer

November 26, 2015English Posts, Light, SpectrometerComments Off on DIY Webcam Diffraction Grating Spectrometer

Abstract : In this post we propose the construction of a diffraction grating spectrometer based on webcam and software Theremino Spectrometer. The spectrometer is a fundamental tool that allows measurement of the spectrum of a light source, ie the properties of light as a function of its wavelength. The spectrometer …

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Theremino Spectrometer – PhysicsOpenLab (2024)
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