digital-brain/content/zettels/signal_conditioner.md

31 lines
873 B
Markdown

+++
title = "Signal Conditioner"
author = ["Thomas Dehaeze"]
draft = false
+++
Tags
: [Sensors]({{< relref "sensors" >}}), [Electronics]({{< relref "electronics" >}})
Most sensors needs some signal conditioner electronics before digitize the signal.
Few examples are:
- Piezoelectric force sensors
- Geophone
- Photodiode
- Thermocouple
The signal conditioning electronics can have different functions:
- Amplification
- Isolation
- Filtering
- Excitation
- Linearization
Depending on the electrical quantity that is meaningful for the measurement, different types of amplifiers are used:
- Current to Voltage ([Transimpedance Amplifiers]({{< relref "transimpedance_amplifiers" >}}))
- Charge to Voltage ([Charge Amplifiers]({{< relref "charge_amplifiers" >}}))
- Voltage to Voltage ([Voltage Amplifier]({{< relref "voltage_amplifier" >}}))