Phasemeter

The Phasemeter instrument is used to measure the amplitude and change in phase of periodic input signals. Using the auto-acquire feature, it can automatically lock to input frequencies in the range of 2-200MHz and track phase with a bandwidth of 10kHz.

If you are directly using the RESTful API (e.g. using cURL), the instrument name as used in the URL is phasemeter.

Functions

Core

• Multi-instrument: Phasemeter in multi-instrument context
• disable_input: Disable an input channel
• disable_output: Turn off the output channels
• enable_freewheeling: Enable free wheeling.
• enable_input: Enable or disable the Phasemeter channel input(s).
• enable_single_input: Sends the signal from the first input to all phasemeter channels
• generate_output: Generate a signal on the specified output channel
• get_acquisition_speed: Get current acquisition speed
• get_auto_acquired_frequency: Get the auto acquired frequency of a channel
• get_data: Get the most recent amplitude, frequency and phase reading
• getters: Phasemeter - getter functions
• reacquire: Reacquire phasemeter signals.
• set_acquisition_speed: Sets the acquisition speed of the instrument
• set_auto_reset: Sets the auto-reset function on the phasemeter
• set_defaults: Reset the Phasemeter to default state
• set_frontend: Configures the input impedance, coupling, and range for each channel
• set_phase_wrap: Sets the phase wrap function on the phasemeter
• set_pm_loop: Configures the frequency and bandwidth of the PLL for each channel
• summary: Returns a short summary of current instrument state
• sync_output_phase: Synchronize the phase of output waveforms
• zero_phase: Zeroes the phase on given Phasemeter channel.

Data Logger

• logging_progress: Returns current logging state.
• start_logging: Start the data logging session to file.
• stop_logging: Stops the current instrument data logging session.

Data Streaming

• get_chunk: Get a single chunk out of data stream
• get_stream_data: Get the converted data stream
• getters: Phasemeter - Streaming - getter functions
• start_streaming: Start a streaming session
• stop_streaming: Stops the current instrument data streaming session.
• stream_to_file: Save the streaming session to a file