Signal Sources and Amplifiers

Introduction

In order to record an experimental signal with high fidelity 3 issues need to be considered.

• Type of Signal to be measured
• Characteristics of the signal sources
• Type of Amplifier used to record the signal

Signal Types

There are 6 types or classes of electical signal sources which occur in various experimental situations. It is important to understand the characteristcs of these signal sources in order that they can be matched to the correct amplifier/recording system without degrading the contents of the signal source.

These 6 classes are listed and discussed below:

Single ended - Floating

This is a brief description of a Single ended - Floating electrode. It works like this... Blah blah blah.

Single ended - Grounded

blah blah blah

Single ended - Grounded with Common mode voltage

blah blah blah

Balanced - Floating

blah blah blah

Balanced - Grounded

blah blah blah

Balanced - Grounded with Common mode voltage

blah blah blah

Source Characteristics

• Source Impedance
• Source Voltage
• Source Frequency content

Amplifier types

• Single ended - Grounded
• Single ended - Isolated
• Balanced - Grounded
• Balanced - Isolated