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#
# This file is part of the PyMeasure package.
#
# Copyright (c) 2013-2024 PyMeasure Developers
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# =============================================================================
# Libraries / modules
# =============================================================================
from .dsp_base import DSPBase
import logging
# =============================================================================
# Logging
# =============================================================================
log = logging.getLogger(__name__)
log.addHandler(logging.NullHandler())
# =============================================================================
# Instrument file
# =============================================================================
class DSP7225(DSPBase):
"""Represents the Signal Recovery DSP 7225 lock-in amplifier.
Class inherits commands from the DSPBase parent class and utilizes dynamic
properties for various properties.
.. code-block:: python
lockin7225 = DSP7225("GPIB0::12::INSTR")
lockin7225.imode = "voltage mode" # Set to measure voltages
lockin7225.reference = "internal" # Use internal oscillator
lockin7225.fet = 1 # Use FET pre-amp
lockin7225.shield = 0 # Ground shields
lockin7225.coupling = 0 # AC input coupling
lockin7225.time_constant = 0.10 # Filter time set to 100 ms
lockin7225.sensitivity = 2E-3 # Sensitivity set to 2 mV
lockin7225.frequency = 100 # Set oscillator frequency to 100 Hz
lockin7225.voltage = 1 # Set oscillator amplitude to 1 V
lockin7225.gain = 20 # Set AC gain to 20 dB
print(lockin7225.x) # Measure X channel voltage
lockin7225.shutdown() # Instrument shutdown
"""
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Dynamic values - Override base class validator values
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
frequency_values = [0.001, 1.2e5]
harmonic_values = [1, 32]
curve_buffer_bit_values = [1, 65535]
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Initializer
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
def __init__(self, adapter, name="Signal Recovery DSP 7225", **kwargs):
super().__init__(
adapter,
name,
**kwargs
)
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