Commit b8f64a3ebf31b54dd7357727a2da6463167906dc
1 parent
bd700e0048
Exists in
master
instruments/AG34461A_avg.py: NPLC trick to give a 1s meas
Showing 1 changed file with 82 additions and 0 deletions Side-by-side Diff
instruments/AG34461A_avg.py
| 1 | +from abstract_instrument import abstract_instrument | |
| 2 | +import socket | |
| 3 | +import time | |
| 4 | + | |
| 5 | +#============================================================================== | |
| 6 | + | |
| 7 | +ALL_VAL_TYPE = ['DCV', 'ACV', 'DCI', 'ACI', 'RES2W', 'RES4W', 'FREQ'] | |
| 8 | +ALL_CHANNELS = ['1'] | |
| 9 | + | |
| 10 | +ADDRESS = "192.168.0.61" | |
| 11 | +CONF_VAL_TYPE = ['CONF:VOLT:DC', 'CONF:VOLT:AC', 'CONF:CURR:DC', 'CONF:CURR:AC', 'CONF:RES', 'CONF:FRES', 'CONF:FREQ'] | |
| 12 | + | |
| 13 | +#============================================================================== | |
| 14 | + | |
| 15 | +class AG34461A_avg(abstract_instrument): | |
| 16 | + def __init__(self, channels, vtypes, address): | |
| 17 | + self.address = address | |
| 18 | + self.port = 5025 | |
| 19 | + self.channels = channels | |
| 20 | + self.vtypes = vtypes | |
| 21 | + | |
| 22 | + def model(self): | |
| 23 | + #self.send("*IDN?") | |
| 24 | + #return self.read() | |
| 25 | + return "AG34461A" | |
| 26 | + | |
| 27 | + def connect(self): | |
| 28 | + print('Connecting to device @%s:%s...' %(self.address, self.port)) | |
| 29 | + self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
| 30 | + self.sock.settimeout(10.0) # Don't hang around forever | |
| 31 | + self.sock.connect((self.address, self.port)) | |
| 32 | + self.send("SYST:BEEP") | |
| 33 | + print(' --> Ok') | |
| 34 | + print(self.model()) | |
| 35 | + self.configure() | |
| 36 | + | |
| 37 | + def configure(self): | |
| 38 | + self.send("*RST") | |
| 39 | + for ch in self.channels: | |
| 40 | + self.send(CONF_VAL_TYPE[ALL_VAL_TYPE.index(self.vtypes[self.channels.index(ch)])]) | |
| 41 | + self.send("CONF:VOLT:DC 10") | |
| 42 | + #self.send("VOLT:DC:NPLC 10") | |
| 43 | + self.send("SAMP:COUN 1") | |
| 44 | + self.send("TRIG:COUN 5") | |
| 45 | + self.send("TRIG:DEL 0") | |
| 46 | + self.send("SENS:ZERO:AUTO OFF") | |
| 47 | + self.send("TRIG:SOUR IMM") | |
| 48 | + self.send("INIT") | |
| 49 | + | |
| 50 | + def getValue(self): | |
| 51 | + mes = '' | |
| 52 | + for ch in self.channels: | |
| 53 | + self.send("FETC?") | |
| 54 | + mesTemp = self.read() | |
| 55 | + mesTemp = map(float, mesTemp.split(',')) | |
| 56 | + mes = mes + '\t' + str(sum(mesTemp)/len(mesTemp)) | |
| 57 | + self.send("INIT") | |
| 58 | + return mes | |
| 59 | + | |
| 60 | + def read(self): | |
| 61 | + ans = '' | |
| 62 | + nb_data_list = [] | |
| 63 | + nb_data = '' | |
| 64 | + try: | |
| 65 | + while ans != '\n': | |
| 66 | + ans = self.sock.recv(1) | |
| 67 | + nb_data_list.append(ans) # Return the number of data | |
| 68 | + list_size = len(nb_data_list) | |
| 69 | + for j in range (0, list_size): | |
| 70 | + nb_data = nb_data+nb_data_list[j] | |
| 71 | + return nb_data | |
| 72 | + except socket.timeout: | |
| 73 | + print "Socket timeout error when reading." | |
| 74 | + raise | |
| 75 | + | |
| 76 | + def disconnect(self): | |
| 77 | + self.send('*RST') | |
| 78 | + self.send("SYST:BEEP") | |
| 79 | + self.sock.close() | |
| 80 | + | |
| 81 | + def send(self, command): | |
| 82 | + self.sock.send("%s\n"%command) |