spectran 0.3.0

A tool to measure pictures with scale_bars

Spectran

A simple spectrum analyzer. Read a voltage signal and do a spectral analysis.

Usage

Installation and Execution

Install via

pip install spectran

Run via

import spectran
spectran.run()

or in terminal

python -m spectran

Workflow

1. First, select driver and device and click connect. This connects the device.
2. Then, select all other options like sample_rate, input_channel, etc.
3. Finally, start the measurement by clicking on Start Measurement.

API Connection

It is possible to remotely control most of Spectran's features via an API. Default Host is 127.0.0.1 on port 8111.

A detailed example can be found in this example.

First, the connection to the API has to be set up:

api = API_Connection()

Afterwards one can set up devices and measurements:

api.connect_device("DummyDAQ", 'Dev1')

CONFIG = {
    "input_channel": "ai0",
    "sample_rate": 50_000 * ureg.Hz,
    "duration": 0.05 * ureg.second,
    "averages": 4,
    "signal_range_min": -3 * ureg.volt, 
    "signal_range_max":  3 * ureg.volt,
    "unit": "Volt",
}
api.set_config(CONFIG)    

# start the measurement
api.start_measurement()
# this waits for the measurement to finish
api.wait_for_measurement()
# this saves the data to a file
api.save_file(f"data.txt")

Development

Spectran is written to provide extensive possibilities for extension. Just extend the spectran.daq.DAQ class for a new driver and implement all necessary functions.

Install module into environment

pip install -e .[dev]