Spectral Evolution PSR-1100 Manuale utente
PSR-1100
Portable Spectroradiometer
Operator’s Manual
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
2
PSR-1100 Manual
Revision: 1.00
4/ /2012
Table of Contents
1
Introduction............................................................................................................. 3
2
Hardware and Interface Description........................................................................ 4
2.1
Part Identification ............................................................................................ 4
2.1.1
Spectrometer........................................................................................... 4
2.1.2
Battery Pack............................................................................................ 4
2.1.3
Optical Input ............................................................................................ 4
2.1.4
Serial Communications............................................................................ 4
2.1.
Front Panel..............................................................................................
2.1.6
Back Panel ..............................................................................................
2.1.7
Laser Scan Switch...................................................................................
2.2
Interface Specification..................................................................................... 6
2.2.1
Battery Pack............................................................................................ 6
2.2.2
USB Serial Connector ............................................................................. 6
2.2.3
Serial Communications via USB or Bluetooth Virtual COM Port .............. 6
2.2.4
ESD protection: ....................................................................................... 7
3
Control Panel.......................................................................................................... 8
3.1
Indicators ........................................................................................................ 8
3.2
Switches ......................................................................................................... 8
3.2.1
Power Switch........................................................................................... 8
3.2.2
Membrane Switches................................................................................ 8
3.2.3
Switch Function ....................................................................................... 8
3.3
LCD Display.................................................................................................... 8
3.3.1
Scan Types ............................................................................................. 8
3.3.2
Status Messages..................................................................................... 9
3.3.3
Parameter Menu...................................................................................... 9
3.3.4
Modifying a Parameter .......................................................................... 10
4
Operational/Functional Description ....................................................................... 11
4.1
Setup ............................................................................................................ 11
4.2
Standalone Operation ................................................................................... 11
4.3
Operation with a host PC .............................................................................. 13
Battery Charger .................................................................................................... 14
.1
Introduction ................................................................................................... 14
.2
Operation ...................................................................................................... 14
.3
Information and Warnings ............................................................................. 14
Appendix A: Laser Safety ............................................................................................. 1
Appendix B: PSR-1100 Specifications......................................................................... 17
Appendix C: Bluetooth Information ............................................................................... 18
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
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PSR-1100 Manual
Revision: 1.00
4/ /2012
1 Introduction
This manual contains data concerning the PSR-1100 field-portable
spectroradiometer system. The system consists of a UV-visible-NIR range spectrometer
with integrated lens (or optional fiber optic input) that produces output calibrated to units
of spectral radiance (W/m
2
/nm/sr). Energy enters the spectrometer from an external
illumination source by way of the lens. The spectrometer is a dispersive PDA system
operating in the range of 320–1100 nm with a 12-element array detector.
All electronics for controlling the PSR-1100 system operation are built into the
instrument. The instrument incorporates manual controls and on-board storage for self-
contained field operation, as well as the capability to connect to a host computer system
using the provided application software via USB or Bluetooth communications interface.
The instrument is powered by a Li-Ion battery pack (provided with each system).
The PSR-1100 contains an internal microprocessor that controls the data
acquisition of the detector array, the communication interface to the host PC, and
provides data storage. Calibration data and spectral data (collected in standalone mode,
described below) are stored in flash memory. The PSR-1100 has a built-in shutter for
automatic dark measurements. The dark current data are retained in RAM and the
microprocessor automatically performs mathematical functions on collected spectral
scan data, including dark subtraction and automatic integration adjustment.
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
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PSR-1100 Manual
Revision: 1.00
4/ /2012
2 Hardware and Interface Description
2.1 Part Identification
2.1.1 Spectrometer
The spectrometer component of the SR-1100 is a crossed Czerny-Turner
configuration using a ruled grating as the dispersive element. Energy enters the
spectrometer and is collimated before being reflected off the grating and refocused onto
the PDA detector. The detector is a 12-element array, covering the spectral range
320–1100 nm. The spectrometer and controlling electronics are contained in the
housing.
2.1.2 Battery Pack
The PSR-1100 uses a Li-Ion battery pack as a power source, supplied with the
system. The Li-Ion battery runs at a nominal 7.4V and is designed to provide more than
3 hours operation following a full charge. When the battery voltage falls too low to power
the instrument, it will turn off and go to 0 volts. Remove the battery from the instrument
for recharging with the supplied charger. Refer to Section :
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
PSR-1100 Manual
Revision: 1.00
4/ /2012
Battery Charger for charging details.
2.1.3 Optical Input
The PSR-1100 comes with a standard fixed 4° field-of-view lens foreoptic
installed. Custom configurations may replace the lens with alternate foreoptics such as a
2 ° FOV fiber optic input.
The entire spectrometer/foreoptic system is factory-calibrated for radiance using
a NIST-traceable source. The calibration coefficients are stored in flash memory by the
internal microprocessor. The application software retrieves these coefficients and
applies them to acquired scan sample data to convert to radiometric units.
2.1.4 Serial Communications
Communications with the PSR-1100 are conducted using USB or Bluetooth.
USB communications require a standard cable with USB-B connector to fit the
receptacle on the control panel. The first time the host PC is connected to the instrument,
Windows® will need to install drivers for the virtual COM port functionality. These drivers
are included on the CD-ROM that was provided with your unit. Once the drivers are
loaded, the provided Windows® application software interacts with the
spectroradiometer using a virtual COM port in the same fashion as a standard RS-232
serial port (11 200 baud, 8 data bits, 1 stop bit, no parity).
The PSR-1100 is also enabled for wireless communications with the application
software provided the user has installed a Bluetooth serial port on the host PC.
Depending on your Bluetooth adapter’s configuration utility, you will need to enter an
identifier for your instrument type (typically called its PIN key or pairing code) the first
time you use your PSR-1100. This code is “psr1100”. Your Bluetooth utility will recognize
the instrument by a unique name with the syntax “PSR-1100 ####”, where #### is
replaced by the serial number of the unit.
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
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PSR-1100 Manual
Revision: 1.00
4/ /2012
Figure 1: Front Panel view of the PSR-11
2.1.5 Front Panel
The front panel of the PSR-1100 contains the on/off switch, USB connector,
battery receptacle and a control panel with membrane switches and LCD display. A
handstrap is permanently attached and near the front panel are two mounting brackets
for attaching a shoulder strap. See Section 3: Control Panel for more information.
2.1.6 Back Panel
The opposite end of the PSR-1100 contains the optical input (lens or SMA fiber
optic input), Bluetooth antenna and optional tripod mount.
2.1.7 Laser Scan Switch
The Laser Scan switch is located on the top cover of the spectroradiometer.
Depressing the switch actuates the sighting laser and can be optionally configured to
initiate the start of a standalone spectral scan.
DANGER: DO NOT LOOK INTO THE LASER BEAM AT ANY TIME, INCLUDING
INSTRUMENT SETUP OR OPERATION.
For more information see Appendix A: Laser Safety.
Li-Ion
Battery
USB
Connector
On/Off Switch
Control Panel
Las
er Scan Switch
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
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PSR-1100 Manual
Revision: 1.00
4/ /2012
Figure 2: View of PSR-11 optical components
2.2 Interface Specification
2.2.1 Battery Pack
Your PSR-1100 is supplied with one or more Li-Ion battery packs that fit into the
recess on the front panel. Slide the spring-loaded catch to the side (away from the
recess) with a finger to insert or remove the battery.
Important: See Section :
Laser
Lens
Bluetooth
Antenna
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
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PSR-1100 Manual
Revision: 1.00
4/ /2012
Battery Charger for details on charging the external battery and safe operation.
2.2.2 USB Serial Connector
For communications via USB, the front panel is equipped with a USB Type-B
receptacle connector, compatible with all standard USB cables with Type-B plug.
Pin 1: + V
Pin 2: D-
Pin 3: D+
Pin 4: GND
2.2.3 Serial Communications via USB or Bluetooth Virtual COM Port
Baud Rate: 11 200 bps
Parity: none
Data Length: 8
Stop bit: 1
Flow Control: none
2.2.4 ESD protection:
+/- 1 KEV human body model,
+/- 8KEV contact discharge
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
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PSR-1100 Manual
Revision: 1.00
4/ /2012
3 Control Panel
The control panel of each PSR-series spectroradiometer contains the controls
and displays that are required for the stand-alone operation of the instrument.
3.1 Indicators
The Control Panel has 3 LED status indicators.
Power LED: The power indicator is illuminated when the power is on.
Laser LED: The laser indicator is illuminated when the laser is on.
Connect LED: The connect indicator is illuminated when the instrument is NOT
connected to a computer via Bluetooth communication link.
3.2 Switches
3.2.1 Power Switch
The power switch provides on/off control of the unit.
3.2.2 Membrane Switches
The three (3) membrane push button switches provide control of the unit during
standalone operation and the capability of modifying the unit’s operation. The functions
of the switches are detailed below.
3.2.3 Switch Function
Scan: Steps through scan options (Reference/Target/Dark Scans)
Menu: Steps through the menu options (Memory Scan#/Dark Scan Mode/Scan
Timer/Optic/Laser Scanning)
Edit: Toggles or cycles through parameter lists for each menu option
3.3 LCD Display
The LCD display is an eight (8) character, two (2) row display that shows the selected
scan and status messages.
ROW 1 displays the scan types, status messages, and battery voltage. The SCAN
button allows the user to select the type of scan to perform.
ROW 2 displays the parameter menu. The MENU button allows the user to scroll
through a set of available parameters, and the EDIT button changes the parameter
settings.
3.3.1 Scan Types
The next type of scan to be collected is displayed in row 1 as follows:
©2012 Spectral Evolution Inc. 90 Sutton St. Unit 4, North Andover, MA 0184 USA
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PSR-1100 Manual
Revision: 1.00
4/ /2012
REF x.xx - Indicates that a spectral measurement will be stored as a Reference Scan;
current battery voltage is x.xx volts, or “LBAT” (Low BATtery) when indicated.
TAR x.xx - Indicates that a spectral measurement will be stored as a Target Scan;
current battery voltage is x.xx volts, or “LBAT” (Low BATtery) when indicated.
DRK x.xx - Indicates that a dark measurement will be acquired. The dark measurement
will be stored in volatile memory (not flash) and used for subsequent scaled dark
measurements. The current battery voltage is x.xx volts, or “LBAT” (Low BATtery) when
indicated.
Pressing the SCAN button cycles through these options. Note that after a REF scan is
taken, the instrument automatically switches to collecting TAR scans.
3.3.2 Status Messages
These messages are also displayed on row 1:
SCANNING - Indicates that a spectral data acquisition is being performed.
BUSY - Indicates that the instrument is performing a lengthy internal operation.
3.3.3 Parameter Menu
The parameter menu is displayed on row 2. The MENU button allows the user to cycle
through the following parameters. The EDIT button changes the parameter values.
MEM# xxx - Displays the memory slot that will hold the next acquired scan. The
allowable values are from 1 to 00. The memory slot cannot be adjusted by the keypad,
with the exception of completely erasing all memory.
To erase all memory and set MEM# to one (1), the <MENU> and <EDIT> keys must be
pressed simultaneously. IMPORTANT! This operation permanently erases all internally
stored scans taken in standalone operation mode.
DRK xxxx - Selects the dark subtraction mode:
AUTO - Automatic Dark mode is selected. Dark current measurement will be acquired
automatically prior to each scan. The dark currents will be acquired at the same settings
as the target scan.
SCLD - Scaled Dark mode is selected. Dark Current for each scan will be scaled, based
on the integration time and the Dark Scan that was acquired manually using the Dark
scan.
STIM xxx - STIM xxx is the scan averaging time. The allowable values are from 1 to 30.
The length of time for a scan is xxx seconds, for each light and dark scan.
O:xxxxxx - Entrance optic option. This must be set to the entrance optic in use for
correct calibration factors to be applied. There can be up to eight (8) optic calibration
options stored in a single instrument. Some possibilities are listed below:
(1) LENS 4 – 4 degree FOV lens
(2) FIBER1 – standard 2 degree FOV fiber optic
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