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Summary of Contents for Elements esca
- Page 1 Elements Single Channel Amplifier User’s Manual v1.2 February 2014...
- Page 2 ONTACTS Elements s.r.l. via Montalti, 42 47521 Cesena ITALY email: info@elements-ic.com web: www.elements-ic.com esca User’s Manual v1.2...
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Page 3: Table Of Contents
ONTENTS INTRODUCTION ........................ 4 Introduction to ESCA ..........................4 HARDWARE SETUP ......................4 Front Connections ............................5 Rear Connections ............................5 Tipical Experimental Setup ........................5 SOFTWARE GUIDE ......................6 Requirements ............................. 7 Installation ..............................7 Software Operating Procedure ........................9 Graphical User Interface .......................... -
Page 4: Introduction
ARDWARE ETUP ESCA is designed to be as simple as possible to connect to your various different setups. In order to obtain the best performance, the main things to be careful are parasitic capacitances on the input and correct shielding of the overall hardware setup to avoid the 50/60Hz line interferences and other electromagnetic interferences. -
Page 5: Front Connections
Input Reference On the front of ESCA there is the connection for your Device Under Test (DUT). This connector is a coaxial SMB male gold plated connector where the center contact is the current measurement input and the outer contact is the reference voltage. -
Page 6: Software Guide
OFTWARE UIDE Elements Data Reader (EDR) is the control software for ESCA devices. It enables the total control of ESCA devices features (such as set the data acquisition properties and the control voltage) and enables the real time data visualization and data saving. Data acquired by means of this custom software are handily readable by Matlab®... -
Page 7: Requirements
Molecular Devices®. IMPORTANT: The software must be installed BEFORE connecting the ESCA device to the PC. EQUIREMENTS The minimum system requirements are: Dual core processor 1GHz or better ... - Page 8 Click on Extract to prepare the installation of these drivers. Then, start the FTDI installation by clicking on Next button and wait until installation finishes. esca User’s Manual v1.2...
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Page 9: Software Operating Procedure
ESCA to your PC, you must wait for the new USB device complete recognition. NOTE: If the blue LED in the rear of ESCA doesn't light up or if you receive an installation error, unplug ESCA from the USB and plug in again. -
Page 10: Graphical User Interface
The first operation is to load a configuration file to initialize the software for the ESCA devices. This file contains all the necessary setups to communicate with the ESCA hardware. The configuration file is loaded by clicking on the “Open Config” button. The configuration file is ESCA_xxx.cfg where xxx is the firmware version of your ESCA... -
Page 11: Esca Setup
“Statistic Data” section for details), while on the right there are the controls to associate an oscilloscope-like trace (beam) with a specific input signal in the visualization window (in the case of ESCA devices, there is only one input channel available). See the “Trace Visualization” section for details. -
Page 12: Digital Offset Compensation
1.25 kHz button: 1.25 kHz bandwidth, 2.5 kHz sampling rate 625 Hz button: 625 Hz bandwidth, 1.25 kHz sampling rate The value of the constant control voltage (Vc) applied at the ESCA input pin is controlled with the “Vc Value” box in the following range: ... -
Page 13: Statistic Data
Then, the mean and std values are calculated on these buffers. When the user changes the bandwidth, there can be necessary to wait some time to have valid estimated statistic data. esca User’s Manual v1.2... -
Page 14: Trace Visualization
Each beam can be associated to a specific data channel in the EDR GUI. In the case of ESCA devices, since there is only one channel available, the beams setup in the GUI can be left unchanged. - Page 15 Change the horizontal offset (shift) Search for a channel NB: useless with ESCA devices since they are single channel amplifiers. Do NOT use it. Return to the previous horizontal and vertical zoom Select the beam, or all the beams, for the zoom and shift commands NB: useless with ESCA devices since they are single channel amplifiers.
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Page 16: Save Data
NOTE: You cannot change acquisition Range or Bandwidth while saving data. To stop saving, click on the “Stop saving” button. You will be asked for a location where data will be saved. Saving can automatically stop after the amount of time set in the preferences menu. esca User’s Manual v1.2... - Page 17 The EDR software creates a new folder in the location chosen by the user with the same name of the saving files. In this new folder the EDR software creates some files: An header .txt file containing some ESCA setup information (Range, Bandwidth, etc.).
- Page 18 = D(:, 1); vc = D(:, 2); time = (0:(length(vc) - 1)) * (1 / Fs); % plot data subplot(2,1,1) plot(time, data) grid on xlabel('Time [s]') ylabel('I [pA]') subplot(2,1,2) plot(time, vc) grid on xlabel('Time [s]') ylabel('Vc [mV]') esca User’s Manual v1.2...
- Page 19 User’s Manual v1.2...
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