digital-brain/content/zettels/signal_conditioner.md

1.0 KiB

+++ title = "Signal Conditioner" author = ["Dehaeze Thomas"] draft = false category = "equipment" +++

Tags
[Sensors]({{< relref "sensors.md" >}}), [Electronics]({{< relref "electronics.md" >}})

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.md" >}}))
  • Charge to Voltage ([Charge Amplifiers]({{< relref "charge_amplifiers.md" >}}))
  • Voltage to Voltage ([Voltage Amplifier]({{< relref "voltage_amplifier.md" >}}))

Bibliography