Analytical Instrumentation

When books are not enough for all information, engineering students try internet blogs to update themselves. We provide daily analytical instruments topic related information & ideas on our blogs.

pH measurement

What is pH? pH is a unit of measurement that describes the degree of acidity or alkali content of a solution. The pH unit is measured in terms of 0 to 14. The pH is formed from quantitative information expressed by the level of acidity or base associated with the activity of hydrogen ions. If …

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Photovoltaic Detectors

What is photovoltaic detectors? The photodetectors generate a voltage that is proportional to the incident EM radiation intensity. These devices are called photovoltaic cells due to their voltage generating characteristics. Actually, they convert EM energy into electrical energy. Applications are found both in EM radiation detectors and in energy sources that convert solar radiation into …

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Introduction to MEMS, MEMS pressure sensor

Micro-Electro-Mechanical Systems, or MEMS, are technologies that are in the most common form that can be defined as miniature mechanical and electro-mechanical elements (i.e. devices and structures) made using microfabrication techniques. the types of MEMS devices can vary from relatively simple structures having no moving elements, electromechanical systems to very complex with multiple moving elements …

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Density Measurement – Vibrating Element Densitometers

Vibrating Element Densitometers Principle: If a body containing or surrounded by a fluid is set to resonance at its natural frequency, then the frequency of oscillation of the body will vary as the fluid properties and conditions change. The natural frequency is directly proportional to the stiffness of the body and inversely proportional to the …

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Turbidity measurement

The turbidity of fluid is measured on the basis of reflection. In the absence of reflection losses, when a weak beam of light passes through a dielectric sample, the two processes most responsible for reducing the intensity of the transmitted beam are absorption and scattering. The reduction in transmitted light intensity due to scattering is called …

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