Scanivalve

A Julia package that provides an interface with Scanivalve pressure scanners. For now only DSA3217 scanners are supported but other scanners shouldn't be too hard to implement.

This Julia driver uses the interface provided by AbstractDAQs.jl.

Basic usage

To connect to a DSA 3217 device, the method DSA3217 should be used as shown in the following example:

julia> using Scanivalve # Load the package

julia> scani = DSA3217("scanivalve", "191.30.80.131") # Create connection to the device
Scanivalve DSA3217
    Dev Name: scanivalve
    IP: 191.30.80.131

julia> daqconfigdev(scani, PERIOD=500, AVG=10, FPS=10) # Configure the device

julia> data = daqacquire(scani); # Acquire data synchronously

julia> daqstart(scani)
Task (runnable) @0x00007ff88d4266e0

julia> data = daqread(scani);

The method DSA3217 is used to establish a connection to the scanivalve. The first argument is part of the AbstractDAQs interface and it is just a name that is used to refer to the device and data it produces. The second argument is the IP address of the scanner. For further information checkout the docstrings.

To configure data acquisition, the method daqconfigdev. This method uses parameters as named in the manual. It is the prefered way to configure the data acquisition. Method daqconfig uses a more generic interface where sample rate or period is specified and number of samples or data acquisition time.

Initially, all 16 channels are configured,

julia> numchannels(scani)
16

julia> daqchannels(scani)
16-element Vector{String}:
 "P01"
 "P02"
 "P03"
 "P04"
 "P05"
 "P06"
 "P07"
 "P08"
 "P09"
 "P10"
 "P11"
 "P12"
 "P13"
 "P14"
 "P15"
 "P16"

but if only some channels are being used, this can be specified as well. This will not have any effect on maximum sampling rate. The names of the channels can also be changed:

julia> daqaddinput(scani, [1,2,15,16], names=["Ptot", "Pest", "Prtot", "Prest"])


julia> numchannels(scani)
4

julia> daqchannels(scani)
4-element Vector{String}:
 "Ptot"
 "Pest"
 "Prtot"
 "Prest"

A zero calibration of the scanner is done using the daqzero method. To stop scanning during an asynchronous data acquisition, use the daqstop method.

See the docstrings and manual for more information.