Download - ADInstruments Advanced Features of LabChart
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ADInstrumentsAdvanced Features of LabChart
Name:
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© 2006 ADInstruments Pty Ltd
Channel Calculations (Arithmetic, Derivative … )
Cyclic Measurements
Data Pad
Macros
Examples
Overview
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© 2006 ADInstruments Pty Ltd
LabChart Software
Provides easy recording and data integrity
Real-time and offline powerful analysis features
Easy selection of settings and display options
Optional functionality with LabChart Modules and Extensions
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Channel Calculations
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© 2006 ADInstruments Pty Ltd
Channel Calculations
Arithmetic
Derivative
Integral
Digital Filters
Smoothing
Cyclic Measurements
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© 2006 ADInstruments Pty Ltd
Channel Calculations Demonstration
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Cyclic Measurements
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© 2006 ADInstruments Pty Ltd
Features of Cyclic Measurements
Feature in Channel Calculations
Used to analyze periodic waveforms
Real-time and offline analysis
Preprocesses the signal
Automated Cycle detection
Automated Calculation of Cyclic Parameters
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© 2006 ADInstruments Pty Ltd
Cyclic Measurements
Setup
Output
Detection Settings
Detection Adjustments
Preview of Detected Cycles
Customizing Presets
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© 2006 ADInstruments Pty Ltd
Cyclic Measurement Demonstration
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Data Pad
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© 2006 ADInstruments Pty Ltd
Features of Data Pad
A spreadsheet used to log numerical recorded data
3 logging data options Add to Data Pad
Adding a single data point Adding a selection of data
Multiple Add to Data Pad Adding multiple recorded data within a specified duration
Timed Add to Data Pad Real-time adding of recorded data
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© 2006 ADInstruments Pty Ltd
Data Pad Demonstration
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Macros
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© 2006 ADInstruments Pty Ltd
Features of Macros
A group of recorded LabChart commands, which can be executed with a single command
All recorded commands are played back in the exact sequence they were recorded
Help to speed up repetitive and tedious tasks
Automate recording and analysis of data
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© 2006 ADInstruments Pty Ltd
Macro Types
Types of Macros Sampling (or Recording) Analysis Combined Sampling & Analysis
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© 2006 ADInstruments Pty Ltd
Applications of Macros
Example Uses of Macros Sampling
Change the settings for stimulation (Output 1, 2 or Isolated Stimulator)
Set up triggering Save data as a new file Provide a message or alert Add comments
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© 2006 ADInstruments Pty Ltd
Applications of Macros
Example Uses of Macros Analysis
Repeatedly log waveform parameters into the Data Pad
Print selected data (e.g. from the Zoom window) Find comments and select data before, after or
around the comment
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© 2006 ADInstruments Pty Ltd
Hints for Writing Macros
Hints for Writing Macros Write down all the steps involved (keep a copy in
LabChart’s Notebook) Break complex operations into several macros then
combine them into one macro Modify the steps of an existing macro to suit your needs Use LabChart’s Online Help Call or email ADInstruments for help
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© 2006 ADInstruments Pty Ltd
Macro Demonstration
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Find and Add all Peaks to Data Pad
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© 2006 ADInstruments Pty Ltd
Find and Add all Peaks to Data Pad
Macro menu Start RecordingCommand menu Find: Select Go, Start of this block, Set active point, FindMacro menu Repeat While In BlockCommand menu Find: Select Find Data, Next Arrow, Local Maxima, Single
point Selection, Find Add to Data PadMacro menu End Repeat Stop Recording and Name the macro
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Continuous Saving - Recording
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© 2006 ADInstruments Pty Ltd
Data Categories and Types
Files LabChart Data Files LabChart Setting Files Text (txt) Excel (xls)
Data Blocks
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© 2006 ADInstruments Pty Ltd
Data Blocks
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© 2006 ADInstruments Pty Ltd
Limitations
Data File (Max Size = 2 GB) Stop Recording, Save the File Close the File Start a New File
Data Block (Max Size = 1 GB) Stop Recording Save Data Start Recording
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© 2006 ADInstruments Pty Ltd
Limitations
Data File
(Max Size = 2 GB)
DB = Data Block
DB DB DBExample 1
DB DBDB DBExample 2
DB
(Max = 1 GB)
DB
(Max = 1 GB)
Continuous Recording
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© 2006 ADInstruments Pty Ltd
Sampling and Saving
Sampling Data Accuracy and Precision File Size
Saving Permanent Data Storage Resets Data Block Capacity
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© 2006 ADInstruments Pty Ltd
Formula (Estimation)
Data Block Size = No. of Channels x Sampling Rate x Recording Duration x 2
Recording Duration = Data Block Size No. of Channels x Sampling Rate x 2
Example The maximum continuous recording duration for 3 channels, sampled at 1k/s is:
Recording Duration = 1 GB/(3 x 1000/s x 2)= 166667 seconds= 46 hours
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© 2006 ADInstruments Pty Ltd
Formula (Estimation)
Example The maximum continuous recording duration for 3 channels, sampled at 1k/s is:
Recording Duration = 1 GB/(3 x 1000/s x 2)= 46 hours
Therefore if the Data Block was saved, you could then record another new Data Block of similar duration.
File Recording Duration (2 Data Blocks) = 46 x 2= 92 hours
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© 2006 ADInstruments Pty Ltd
Macro: Long Duration Recordings
Raw Data
Sampling
Data Block
Temp File
New Unique File
File01.adicht
File02.adichtFile03.adicht
Saving
Resetting
Clearing Data Block
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© 2006 ADInstruments Pty Ltd
Programming Long Duration Recordings using Macros
Macros Sample
Setting the Sampling Duration Save as no.
Saving the data into a file with a Unique Number Remove data
Clearing the data from the Data Block X times
Repeats Sample, Save as no. and Remove data