Biomedical measurements Archives - Biomedical Instrumentation Systems

Features of an ECG Wireless Telemetry System

The advancement in technology has made it possible where necessary to monitor subjects from some distance using wireless telemetry. The biological parameter commonly studied this way is the electrocardiogram. The display of ECG and cardiac rates gives enough information … Read More

Types of Spirometers & Technologies used

Spirometer is the instrument used to measure lung capacity and volume. The record obtained from spirometer is called a spirogram. There are a number of spirometers used in respiration volume measurements. In this article, we look at general types of … Read More

Dispersive Spectrophotometry Chemical Analysis Technique

Dispersive spectrometry (DS) methods make up a large number of ultraviolet, visible light and infrared spectroscopy systems. DS refers to the fact that the light or electromagnetic radiation passed through the sample (analyte) must pass through a monochromator either before … Read More

Features of Microprocessor-Based ECG Systems

Microprocessors have been used in electrocardiographs to obtain certain advanced features like the elimination of artefacts, baseline shifting, and so forth using software techniques. In this article, we look at some of the key features of microprocessor-based ECG systems … Read More

The Principle & Applications of Confocal Imaging

Confocal imaging (CI) is based on illuminating a single point on the sample and collecting scattered light from the same point of the sample. The illumination point on the sample is the image of the illumination pinhole and is imaged … Read More

What is Bioinstrumentation?

Bioinstrumentation involves the measurement of current or voltage signals from the different parts of the body. The measurement of various physiological signals produced by the body helps in diagnosis and treatment of diseases. In actual fact, when we talk about … Read More

5 Types of Biomedical Instrumentation Systems

We have the following five types of biomedical instrumentation/measurement systems:

Direct/Indirect
Invasive/Non-invasive
Contact/Remote
Sense/Actuate
Dynamic/Static

Direct/Indirect

In biomedical instrumentation we may have the sensing system measuring a physiological parameter directly, such as the average blood flow in an artery or … Read More

Common Challenges of EEG Analysis

Though EEG signal detection provides a key indicator for detection of neurological status and disorders, its biomedical application is limited. This is because of the complicated nature of EEG signal and the complexities regarding the interpretation of the signals.

Some … Read More