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HWP Picoscope Agent

The HWP picoscope agent interfaces with Picoscope 3403D MSO to operate the LC sensors which remotely measures the 3 dimentional position and temperature of hwp. This agent biases the LC sensors and measures the 4 channels of analog input and 8 channels of digital input.

Dependencies

The Picoscope 3403 MSO requires some drivers to be compiled for your machine. To install the drivers wget the picotech library and clone the picosdk-python-wrappers repository and build the drivers:

$ wget https://labs.picotech.com/debian/pool/main/libp/libpicoipp/libpicoipp_1.3.0-4r21_amd64.deb &&\
$ wget https://labs.picotech.com/debian/pool/main/libp/libps3000a/libps3000a_2.1.0-6r570_amd64.deb &&\
$ dpkg -i *deb
$ git clone https://github.com/picotech/picosdk-python-wrappers.git
$ cd picosdk-python-wrappers
$ git switch -c 89003868b5bc52511ee57419f0afbfade25f1882
$ python3 setup.py install

Configuration File Examples

Below are useful configurations examples for the relevant OCS files and for running the agent in a docker container.

ocs-config

To configure the HWP picoscope agent we need to add a HWPPicoscopeAgent block to our ocs configuration file. Here is an example configuration block using all of the available arguments:

{'agent-class': 'HWPPicoscopeAgent',
 'instance-id': 'picoscope',
 'arguments': []}

Docker

Warning

This agent is only confirmed to work with the privileged flag, which disables the features that isolate a container from the host system. It is recommended that you instead run this Agent directly on the host via the Host Manager Agent.

If you want to run in a container you will need to build the image yourself. A Dockerfile is provided in socs/docker/hwp_picoscope/.

The HWP picoscope agent can be run via a Docker container. The following is an example of what to insert into your institution's docker-compose file:

picoscope:
  image: ocs-hwp-picoscope-agent:latest
  hostname: ocs-docker
  privileged: true
  environment:
    - INSTANCE_ID=picoscope
  volumes:
    - ${OCS_CONFIG_DIR}:/config:ro
    - /dev:/dev

Agent API

socs.agents.hwp_picoscope.agent.PicoAgent