Biomedical sensors

Causes of Measurement Errors in Thermocouple Thermometry

Reliable temperature measurement is dependent on several factors that, more or less, inexorably lead to measurement errors. In this article…

5 months ago

Polarizable vs. Non-Polarizable Electrodes

We may categorize electrodes into two possible types albeit theoretically: those that are perfectly polarizable and those that are perfectly…

2 years ago

Principle for Measurement of Partial Pressure of Carbon Dioxide

The electrodes used for measurement of partial pressure of CO2 in blood are based on measuring the pH as demonstrated…

2 years ago

The Principle of Immunoassay Biosensor

The principle of immunoassay sensor operation is based on the observation of ligand-binding reaction products between a target analyte and…

2 years ago

Basic Features of Intravascular Fiber Optic Blood Gas Sensor

Intra-arterial blood gas sensors usually use a single or double fiber configuration. Typically, the matrix containing the indicator is attached…

2 years ago

Commonly used EEG Electrodes

The most commonly employed electrodes for recording electroencephalographic signals from the brain (EEG) are cup electrodes and subdermal needle electrodes.…

2 years ago

The Principles of Microbial Biosensors

Introduction The underlying basis of a microbial biosensor is the close proximity between an immobilized microorganism that serves as a…

2 years ago

The Operation of Fiber-optic Based Blood Gas Sensors

To perform in vivo measurements and to steadfastly analyze blood gases, a small, stable, accurate and bio-compatible sensor is needed…

2 years ago

The Principle of Surface Plasmon Resonance Sensors for Detection of Antibody & Antigen Interactions

When monochromatic polarized light for instance, from a laser source impinges on a transparent medium having a conducting metallized surface…

2 years ago

The Principle of Temporal Artery Thermometer

This is a non-invasive scanning thermometer for measuring core body temperature. The measurement is based on scanning the area above…

2 years ago