Laser 2000

PID Controller

PID-Controller

Available on Moku:Go, Moku:Lab, and Moku:Pro hardware

Liquid Instruments

PID Controller

A PID controller is used for control applications to stabilise a system or a response by reducing steady state error in a smooth way. Liquid Instruments’ fully configurable PID Controllers have a high output sampling rate which enables them to be used in applications requiring both low and high feedback bandwidths.

 

Monitor the Effects of Change in Real-time

The intuitive, graphical user interface allows you to directly adjust the PID parameters on the Bode plot. You are able to monitor the effects of the change in real-time with the built-in oscilloscope saving the tedious trial and error approach required when using other equipment.

Below is the PID Controller’s user interface showcasing the real-time response and some of the key features explained below:

 

Key Features of the PID Controller:

Versatile Inputs with the Input Control Matrix

Change the values in the input control matrix to combine, rescale and redistribute the input signals to the two independent PID controllers.

 

Configurable Gain Profiles

There are six gain profiles that are adjustable using the interactive bode plot:

  • Proportional (P)
  • Integral (I)
  • Derivative (D)
  • Double-integral (I+)
  • Integral saturation (IS)
  • Differential saturation (DS)

Multi-section PID builder – This advanced mode features single or double integrators and differentiators with low- and high-frequency gain saturation

 

Interactive Bode Plot

Design your control system’s frequency response in real-time. The simple user interface allows you to change the gain profiles with the use of a slider. Results can be seen in real time in a very hands-on, user-friendly set-up.

Below is a video on Liquid Instruments’ YouTube channel showcasing the PID Controller instrument. 5:36 – 6:56 shows the interactivity and ease-of-use of the bode plot.

Built in Probe-Points

Easy signal monitoring – The intuitive user interface features a block-diagram view of the signal processing chain. Built-in probe points allow you to see the signal at various points throughout the signal process using the integrated oscilloscope.

 

Applications:

  • Feedback and control systems design
  • Laser frequency stabilization
  • Temperature regulation
  • Scan heads/sample stage positioning
  • Pressure, force, flow rate, and other controls

The PID Controller runs on Moku:Go, Moku:Lab and Moku:Pro. You can compare the platform specifications below:

Moku:Go’s
PID Controller
Moku:Lab’s
PID Controller
Moku:Pro’s
PID Controller
Channel count
2 input / 2 output 2 input / 2 output 4 input / 4 output
Output sampling rate
>2.5 MSa/s >10 MSa/s >10 MSa/s
DAC resolution
12 bits 16 bits 16 bits
Phase lag
<30° at 20 kHz <30° at 100 kHz <30° at 120 kHz
Gain configuration
Real-time Real-time Real-time
Deployable in Multi-instrument Mode?
Yes N/A Yes
Software & Utilities
macOS App
Windows App
API support for Python and MATLAB
iPadOS App
Windows App
API support for Python, MATLAB, and LabVIEW
iPadOS App
API support for Python and MATLAB
PID Controller Datasheet - Moku:Go
PID Controller Datasheet - Moku:Lab
PID Controller Datasheet - Moku:Pro
PID Controller User Manual - Moku:Go
PID Controller User Manual - Moku:Lab
PID Controller User Manual - Moku:Pro
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PID-Controller

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If you’re interested in the products shown here, or have questions about something you can’t find on our website, please get in touch through the form below.

Our knowledgeable sales team will be happy to help. We can normally source exactly what you need, or work with you to come up with custom solutions.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to the Photonics team.