Changelog for Piezolab EMC
(c) Timo Scholehwar / Fraunhofer IKTS

known issues:
- sample type after loading is always 'free geometry'
- spectrum comparison and QC still too clumsy
- ',' is NOT accepted as decimal separator (must be '.')
- the 4194A tends to freeze up during long measurements (might be a win9x problem)
- the interface is still cluttered


to do's:
- add better example files
- unified quality control interface
- tolerance-band type quality control feature
- print layout sucks on non-A4 formats
- add 'merge files' option
- redesign interface
- support for user-defined thermometer
- autosave option / more versatile autoname

v2.4.5 maintenance update
- changed: copy protection removed. (was just a nuisance anyway)
- changed: "%" value of bandwidth B(3dB) removed. (pointless) 
- added: option to ask user for printout language (a bit stiched together, but wth? :))
- fixed: div/0 error when startfrequency=stopfrequency
- fixed: "File not found." error is properly dislayed now
- fixed: filename is now properly displayed in title
- fixed: "Insufficient Data Error" when chaning coupling factor 
- fixed: loss tangent unit is now displayed properly
- fixed: preferred printer is now displayed properly
- fixed: x-axis of repeat measurement is now displayed when no thermal sensor is attached
- fixed: ".txt" extention is now correctly added (error could not be reproduced???)
- fixed: results are cleared after new calibration
- fixed: Q and B values switched in printout
- fixed: old spectra with Q(mech) are now properly loaded again
 

v2.4.4
- changed: loss tangent decimal added (for statistics)
- changed: Qm removed. It has no additional information over q(3dB)
- changed: start/stop frequencies will no longer be switched, if start>stop (irritating)
- changed: type of coupling factor is now remembered
- added: dynamic value of resonance D defined by lg(Rs)-lg(Rp)
- fixed: linewidth now also applies to spectrum comparison
- fixed: various minor bugs fixed

v2.4.3
- fixed: loss tangent designation in protocol fixed
- fixed: C measurement with reduced number of points now works with the Agilent 4194A 

v2.4.2 maintenance update
- changed: unit of the loss tangent can now be chosen between 1e-3 and 1e-4
- fixed: signal amplitude setting on the 4291A is now correctly applied 

v2.4.1 maintenance update
- added: optional measurement of the coupling factor directly after reading a new spectrum
- added: preferred printer selection
- changed: clear protocol now does not insert header anymore
- changed: empty line is now consistantly added after the header
- changed: all freqencies formatted to 3 decimals
- fixed: language switching works smoother
- fixed: start / stop frequencies were not properly refreshed
- fixed: optional printout language
- fixed: all QC results are consistantly cleared before reading a new sample
- fixed: some minor format corrections in protocol
- fixed: some more german translation stuff

v2.4.0
- added: different modes for automatic protocolling
- changed: measuring frequency now has 3 decimals
- changed: resonance impedance Rs now has 1 decimal
- changed: optional minimal number of points for figure of merit
- changed: change of measuring capacity is protocolled 
- fixed: multilanguage german/english cleaned up
- fixed: error on the 4294A, when changing output signal
- fixed: linewidth is now remembered
- fixed: linewidth=0 disables the corresponding plot


v2.3.0 beta
- added: multilanguage support added
- added: 3 spectrum ranges for "Read New Spectrum" can now be pre-defined
- added: quality control for f(min)
- added: measurement of serial resistance Rs at resonance frequency f(min) 
- added: EMC now correctly determines figures of merit Qm, Q(3dB) and bandwidth B(3dB)
- added: user-defined precision threshold for k and q calculation 
- added: manual timeout for impedance analyzer
- added: warning, if average becomes too high
- added: warning, if there are not enough points to determine the coupling factor
- added: auto-backup mode can now be chosen
- added: user-defined preferred printer
- changed: pointless empty line in protocol removed
- changed: EMC now remembers last used language for files / printouts 
- changed: EMC now remembers the last type of coupling factor used
- changed: EMC now remebers Auto-protocolling option
- changed: standard unit for capacity is now nF throughout EMC
- changed: k-label more specific
- changed: quality control file format change
- changed: automatic protocolling improved
- changed: english and german versions merged
- changed: Q(3db) pointless decimal removed
- fixed: frequency ranges are now correctly adapted to analyzer
- fixed: header in protocol updated, if frequency for c-measurement is changed
- fixed: no more additional protocol lines when electrode distance is changed
- fixed: Channel A (|Z|) on analyzer display now starts out as log
- fixed: filename chaos in backup directory
- fixed: labels cleared before loading new file
- fixed: quality control for c now showes 6 decimals
- fixed: linelength in printout is now cropped to correct area
- fixed: eps(rel) is now recalculated correctly, if any geometry is changed to <=0 after measurement
- fixed: floating point error, when changing k without data
- fixed: print layout A4
- fixed: random empty line in protocol

v2.2.4
- added: mouseover-hints
- added: save each spectrum during continuous measurements
- added: manual change of data and backup directories
- changed: user manual updated
- changed: improved spectrum comparison zoom
- changed: decreased sensitivity of automatic protocolling
- changed: automatic backup 
- fixed: zoom error, when 'increase precision' was selected
- fixed: type of coupling-factor is now remembered correctly at next startup
- impossible: poling direction detection

v2.2.3
- added: option to merge or not to merge old and newly measured points (by customer request)
- added: option to delete the measured points (by customer request)
- changed: save language defaults to program language
- fixed: files saved in German could not be reloaded
- fixed: sporadic div/0 error when changing coupling factor type 
- fixed: the first character of the 'Measured by' field disappeared after loading a file

v2.2.2
- added: start/stop f input on repeat measurement page
- fixed: capacity measured at f <> 1kHz were proportional to f
- fixed: f input above 40MHz will be ignored with the 4194A
- fixed: cleaned up the code

v2.2.1
- added:   repeating measurements
- added:   temperature sensor support
- added:   autozoom-button
- added:   calibration can now be aborted
- changed: unified version for 4194A and 4294A
- changed: unified standard and pro version
- changed: autoload feature removed (nobody uses it anyway)
- fixed:   minor glitches in interface (tab-order, etc.)
- fixed:   averaging steps for 4194A corrected
- fixed:   garbled comments after loading

v2.2.0
- added:   bandwidth B(3dB) and quality factor Q(3dB) (by customer request)
- added:   spectrum comparison can now be zoomed with the mouse
- changed: (print)-layout rearranged
- changed: improved display speed
- changed: print AND save in chosen language
- fixed:   a bunch of minor usability issues
- fixed:   floating point errors when determining k manually
- fixed:   last line of old protocol stays intact after appending data
- fixed:   floating point error when loading

v2.1.3
- added:   fast-save and -print buttons on measurements page (by customer request)
- added:   save-filename prediction (by customer request)
- added:   sample name on measurement page (by customer request)
- changed: trialversion is now fully functional
- fixed:   hardware ids and colorsettings stored in registry
- fixed:   overflow error during k calculation

v2.1.2
- added:   automatic protocolling
- added:   multiple file selection in spectrum comparison
- changed: txt-format is now standard for all file operations
- changed: dia-format is now considered obsolete (since it's impractical)
- changed: minor user interface changes
- changed: x-scale in spectrum comparison now autoscales
- changed: working directories are now remembered
- fixed:   random access errors when loading files
- fixed:   erratic unzooming
- fixed:   min/max frequencies are now correctly displayed after loading files
- fixed:   random graphics glitch with the 4194A
- fixed:   more typos
- fixed:   redundant entries in protocol
- fixed:   erasing protocol after loading works now

v2.1.1
- added:   missing DLL's added. Piezolab EMC can now be used without Agilent's IO Lib
- added:   automated quality control based on C, tand and k(eff)
- fixed:   automatic backup-filenames
- fixed:   some minor interface glitches
- fixed:   clear protocol works now

v2.1
- added:   save as .jpg/.wmf/.bmp
- added:   more sample geometry options
- added:   frequency for standard measurements (C,tand,eps) can now be chosen
- added:   visual spectrum comparison for quality control
- added:   forced calibration of sample holder
- added:   printout in English and German
- changed: saved data can be limited to visible part of the spectrum
- changed: unified graphical user interface for 4194A and 4294A
- changed: saved files include all measurement data
- fixed:   various issues with Agilent's interface library
- fixed:   various issues with the 4194A
- fixed:   print layout
- fixed:   typos

v2.0
- added:   long filename support
- changed: ported to win32 platform and Agilent SICL library
- changed: improved graphical display