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--- projects:test_and_measurement_home_lab [2019/11/21 20:56]
admin [Remote control via Python & sockets]
+++ projects:test_and_measurement_home_lab [2021/05/20 19:10]
admin
@@ Line 1: / Line 1: @@
 ====== Test & measurement home lab ======
 ===== DMM Keysight 34465A =====
-==== Remote control via Python & sockets ====
+==== Remote control ====
+=== Netcat - using sockets ===
+<code>
+$ echo "*IDN?" | nc 34465a 5025
+Keysight Technologies,34465A,MY59008429,A.03.01-03.15-03.01-00.52-03-02
+$ echo "MEAS:VOLT:DC? 10,0.001" | nc 34465a 5025
++1.62349138E-04
+$ echo "SYST:ERR?" | nc 34465a 5025
++0,"No error"
+$
+</code>
+=== Python - using sockets ===
 <code>
 $ python
@@ Line 10: / Line 21: @@
 >>> s.sendall('meas:volt:dc? 10,0.001\n')
 >>> data=s.recv(1024)
+>>> data
+'+7.33658297E-05\n'
 >>> print data
++7.33658297E-05
 >>> s.close()
+</code>
+=== Python - using pyvisa package ===
+  * install pyvisa first - on Ubuntu 18.04
+<code>
+$ sudo apt-get install pyvisa
+</code>
+  * on Oracle Solaris s11.4
+<code>
+# pip install pyvisa
+Collecting pyvisa
+  Downloading https://files.pythonhosted.org/packages/51/d1/fc21b45228718cde06b33b08761a6a9aa859dfe51dfbf07e81e0f209e776/PyVISA-1.10.1.tar.gz (6.8MB)
+% |████████████████████████████████| 6.8MB 94kB/s
+Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/lib/python2.7/vendor-packages (from pyvisa)
+Installing collected packages: pyvisa
+  Running setup.py install for pyvisa ... done
+Successfully installed pyvisa-1.10.1
+You are using pip version 8.1.2, however version 19.3.1 is available.
+You should consider upgrading via the 'pip install --upgrade pip' command.
+# pip install pyvisa-py
+Collecting pyvisa-py
+  Downloading https://files.pythonhosted.org/packages/7c/85/6f3170a31596d8e1ae55a108c07976da7ed2827c7a4328958fc242a88bc9/PyVISA-py-0.3.1.tar.gz (57kB)
+% |████████████████████████████████| 61kB 953kB/s
+Requirement already satisfied (use --upgrade to upgrade): pyvisa>=1.8 in /usr/lib/python2.7/site-packages (from pyvisa-py)
+Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/lib/python2.7/vendor-packages (from pyvisa>=1.8->pyvisa-py)
+Installing collected packages: pyvisa-py
+  Running setup.py install for pyvisa-py ... done
+Successfully installed pyvisa-py-0.3.1
+You are using pip version 8.1.2, however version 19.3.1 is available.
+You should consider upgrading via the 'pip install --upgrade pip' command.
+#
+</code>
+  * run simple program to acquire measured value
+<code>
+$ python
+>>> import pyvisa
+>>> rm = pyvisa.ResourceManager()        <--- work on Solaris, not on Ubuntu
+>>> rm = pyvisa.ResourceManager('@py')   <--- works on both Solaris and Ubuntu
+>>> inst = rm.open_resource('TCPIP0::34465a::inst0::INSTR')
+>>> print (inst.query("*IDN?"))
+Keysight Technologies,34465A,MY59008429,A.03.01-03.15-03.01-00.52-03-02
+>>> print (inst.query("SYST:ERR?"))
++0,"No error"
+>>> print(inst.query("MEAS:VOLT:DC? 10,0.001"))
++7.79228646E-01
+>>> print(float(inst.query("MEAS:VOLT:DC? 100,0.00001")))
+.7884186
+>>> data=inst.query("MEAS:VOLT:DC? 10,0.001")
+>>> data
+u'+1.99758447E-05\n'
+>>>
 </code>
 ===== Laboratory power supply OWON ODP3122 =====
@@ Line 18: / Line 87: @@
   * channel 1: 0-30V/0-12A
   * channel 2: 0-6V/0-3A
-==== Remote control via LAN ====
+==== Remote control ====
+=== Telnet ===
 <code>
 $ telnet 192.168.1.99 3000
@@ Line 59: / Line 129: @@
   * port 1861
   * LeCroy VICP protocol
-===== 6,5 DMM =====
+===== Available 6,5 DMMs =====
 ==== www.amt.cz ====
 === Siglent SDM 3065X ===
@@ Line 118: / Line 188: @@
   * price w/ DPH: 25 703,-
   * 3-year warranty
+===== Binocular microscops =====
+  * [[https://www.hotair.cz/mikroskopy/binokularni/stranka-1-24.html|www.hotair.cz]]