Workflow

This overview shows the sequence of steps involved in using the µZ system. More details about each step can be found on the respective pages in this user guide.

Initial setup

These steps need to be performed once while setting up a system (consisting of the µZ hardware and a computer running the ACME software) for the first time:

1. Install ACME

   • After installation, the sofware license needs to be activated

2. Connect µZ hardware

3. Configure the Audient EVO 16¹

   • Instructions for manual configuration of the device are also given for Linux users²

4. Create DAQ configuration

General measurement session outline

These steps need to be repeated for each measurement session:

1. Turn on the µZ hardware

   • Plug in the loudspeaker power supply

   • Plug in the Audient EVO 16

     • If the EVO 16 is already plugged in but seems to be turned off, it likely is in standby mode. Wake it up by pressing the control wheel on the device. We recommend to turn off standby mode

     

2. Open measurement folder in ACME

   • Create a new folder or load an existing one, to store the measurement data

3. Select a measurement configuration

   • For series impedance measurements on thin acoustic samples:
     • Decide whether to use the 4 or 5 microphone method and — in case of the 5 microphone method — select a cavity size
   • For all other measurements: use the 4 microphone method

4. Calibrate the µZ system

   • Determine system and environmental parameters to ensure accurate measurement results

5. Perform a measurement

   • Set up the hardware and software for a specific type of measurement
   • In case of a series impedance measurement, a reference measurement needs to be performed before measuring the actual sample measurement
   • Perform the measurement

6. Analyze

   • Plot various acoustic properties of the sample, as a function of frequency
   • Export the plots or measurement data in several formats

7. Turn off the µZ hardware

   • Unplug the loudspeaker power supply
   • Unplug the Audient EVO 16

1. The Audient EVO 16 is delivered preconfigured. This section in the manual describes how to reconfigure it, should the internal memory of the device get accidentally erased. ↩

2. The software needed to store settings in the memory of the EVO 16 is not available on Linux. If you exclusively have access to Linux systems, you will need to reconfigure the EVO 16 manually every time it is rebooted, should its internal memory ever accidentally get erased. ↩