Amsterdam Cantilever Piezo Valve

Valve body: ACPV2 model
The ACPV2 is our standard pulsed valve body. Both the electrical feed through (Lemo connector) and the gas feed through (Swagelock) are mounted on the back side of the flange.

The typical nozzles that we produce have a 100, 150, 200 or 300 micron diameter and a 40 degree conical nozzle shape for enhanced centre-line intensity. We can also make straight channel nozzles, please contact us for further information.

The dimensions of the standard ACPV2 valve body are shown below:




Valve body: ACPV3 model
This model is currently under development and is especially targeted for integration in setups with close laser interaction directly behind the nozzle, for instance in High Harmonic Generation or Velocity Map Ion imaging.





Electronic Driver Unit

EDU5 model:
The EDU5 electronic driver unit (that supersedes the former EDU1-4 models as of the summer of 2017) is matched for optimal performance to the ACPV2 and ACPV3 valve models. The EDU5 can be operated with manual control of the pulse amplitude and pulse duration as well as full computer-control of drive settings. See the photos below:



Operation
•Hardware trigger 5V TTL (50 Ohms/high impedance selectable) or fiber optic (ST)
•Digital timing circuitry for accurate, reproducible valve opening time from 5 to 800 microseconds
•Digital controlled piezo voltage level from 0 to 160 Volts
•Easy user control via rotary encoders and LCD display
•Separate rotary encoders for pulse width and piezo voltage level
•Selectable valve control: open/closed/open-on-trigger
•Computer controlled USB or RS232-port
•To allow for computer control and trigger over greater distances and/or achieve galvanic isolation the EDU5 can be connected via fiber optics, see below
•VCP (Virtual Com Port) software drivers are included for operation of control software under Windows7/10 and Linux
•Software control via any programming/scripting language
•Simple human readable text based commands
•A simple terminal program is sufficient to remote control the EDU5 without any programming

Fiber Remote Control Unit:
To allow for computer control and trigger over greater distances and/or achieve galvanic isolation the EDU5 can be connected via fiber optics of chosen length, 10, 30 or 100 meter (unit: FRC10/30/100).


Isolation Box:

For direct implementation of the ACPV and EDU5 in a galvanically floating setup we provide an isolation box that houses the EDU5. Please contact for further information.