blob: 402af2e9039efe5e9451137571bfa0ed92bfd969 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
"""
Module: MKS Granville-Phillips 390 Micro-Ion Gauge Control
Description: This module provides a class to interface with the
MKS Granville-Phillips 390 Micro-Ion Gauge
using pyvisa.
Author: Mykhailo Vorobiov
Email: mvorobiov@wm.edu
Date Created: 2024-10-22
Date Updated: 2024-11-05
"""
from qolab.hardware.basic import BasicInstrument
from qolab.hardware.scpi import SCPIinstr
import pyvisa
import numpy as np
import time
class MKS390(SCPIinstr):
"""
A class for interfacing with the MKS Granville-Phillips 390 Micro-Ion Gauge
for vacuum measurements between 1e-11 and 1e+3 Torr.
"""
def __init__(self, resource, gauge_id = '#02', *args, **kwds):
"""
Initialize the vacuum gaguge class
"""
super().__init__(resource, *args, **kwds)
self.resource = resource
#self.config["Device model"] = "MKS 390"
self.resource.baud_rate = 19200
self.resource.timeout = 5000
self.resource.read_termination = '\r'
self.resource.write_termination = '\r'
self.write = self.resource.write
self.read = self.resource.read
self.read_raw = self.resource.read_raw
self.ignition_status = False
self.id = gauge_id
#self._read_ignition_status()
def enable_ignition(self, ig_status=False):
self._read_ignition_status()
if not(self.ignition_status == ig_status):
try:
# Sending a command
command = self.id + 'IG 0'
self.write(command)
self.ignition_status = ig_status
print(f"[INFO] Vacuum gauge ignition status changed to: {self.ignition_status}")
except pyvisa.VisaIOError as e:
print(f'[ERROR!] Failed to change vacuum gauge ignition status.\n\t{e}')
else:
print(f'[WARNING] No change to vacuum gauge ignition status: {self.ignition_status}')
def get_ignition_status(self):
self._read_ignition_status()
return self.ignition_status
def _read_ignition_status(self):
try:
# Sending a command
command = self.id + 'IGS'
self.write(command)
time.sleep(0.01)
self.ignition_status = bool(self.read_raw(8).strip().split()[1])
return self.ignition_status
except pyvisa.VisaIOError as e:
print(f'[ERROR!] Failed to read vacuum gauge ignition status.\n\t{e}')
#@BasicInstrument.tsdb_append # The function does not work with the decorator (need to work on it later)
def get_pressure(self):
try:
# Sending a command
command = self.id + 'RD'
self.write(command)
# Waiting and reading the response
time.sleep(0.01)
response = float(self.read_raw(14).strip().split()[1])
return response
except pyvisa.VisaIOError as e:
print(f'[ERROR!] Failed to get vacuum gauge reading.\n\t{e}')
return np.nan()
'''
def close(self):
"""
Close the connection to the vacuum gauge.
"""
if self.gauge:
try:
self.gauge.close()
self.logger.info("Connection to the vacuum gaguge closed.")
except pyvisa.VisaIOError as e:
self.logger.error(f"Error closing connection to the vacuum gauge: {e}")
'''
# Example usage
if __name__ == '__main__':
import pyvisa
rm = pyvisa.ResourceManager()
gauge = MKS390(rm, 'visa://192.168.194.15/ASRL13::INSTR', gauge_id='#02')
pressure = gauge.get_reading()
gauge.close()
print(pressure)
|
