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The USB2000+ Miniature Fiber
Optic Spectrometer is a unique combination of
technologies
a powerful 2-MHz
analog-to-digital (A/D) converter, programmable electronics,
a 2048-element CCD-array detector, and a high-speed USB 2.0
port. This innovative combination produces our fastest
spectrometer yet and provides resolution to 0.35 nm (FWHM).
The USB2000+ allows users to capture and store a full
spectrum into memory every millisecond (that's 1,000 full
spectra every second) when the spectrometer is interfaced to
a computer via a USB 2.0 port. The USB2000+ is perfect for
chemical, biochemical and other applications where fast
reactions need to be monitored.
The USB2000+ offers the
following features:
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1,000 Full
Spectra/Second
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Programmable
Microcontroller
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Modular design
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User-configured
wavelength range and resolution
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Automatically reads
the wavelength calibration coefficients of the
spectrometer and configures operating software
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USB-to-PC interface;
no external power requirements
-
RoHS and CE
compliance
1,000 Full
Spectra/Second
The USB2000+ utilizes
an onboard, 2-MHz A/D converter, which allows you to
capture and transfer one full spectrum into memory
every millisecond when the spectrometer is
interfaced to a PC via the USB port.
Programmable
Microcontroller
The USB2000+ has an
onboard programmable microcontroller that provides
flexibility in controlling the spectrometer and
accessories. Through a 22-pin connector, you can
implement all operating parameters in the software,
such as controlling external light sources, creating
processes and routines and retrieving data from
external devices. The USB2000+ gives you access to
10 user-programmable digital I/Os for interfacing to
other equipment; one analog input and one analog
output; and a pulse generator for triggering other
devices. (Programming the I/Os requires SpectraSuite
Spectroscopy Operating Software.)
Facilitated Operation
Setting
up the USB2000+ Spectrometer is easy. The user
simply installs our Spectrometer Operating Software
and then connects the USB cable from the
spectrometer to the computer. Wavelength calibration
coefficients unique to each spectrometer are
programmed into a memory chip right on the USB2000+;
the software simply reads these values from the
spectrometer. What's more, the USB2000+ requires no
external power supply; it draws its power from the
computer. In fact, the USB port can be used to power
light sources that connect to the spectrometer.
Optimal
Performance
The
USB2000+ couples a low-cost, high-performance
2048-element linear CCD-array detector with an
optical bench that's small enough to fit into the
palm of your hand -- the same detector and optical
bench that have provided superior performance to the
users of our 90,000+ systems out in the field. The
USB2000+ also works the same way as other Ocean
Optics spectrometers in that it accepts light energy
transmitted through single-strand optical fiber and
disperses it via a fixed grating across the linear
CCD array detector, which is responsive from
200-1100 nm.
Modular
Design
Just as
with all other Ocean Optics user-configured
spectrometers, users work with our applications
scientists when selecting the USB2000+ -- choosing
from 14 gratings, 6 slits and hundreds of fiber
optic accessories such as light sources, probes and
optical fibers to create the optimal system for
their application.
We also
have a limited-time upgrade offer designed
especially to enhance your UV sensing and boost UV
response by over 20%. The upgrade is available for
Gratings 1, 5, 7 and 10.
Users
can also choose from Ocean Optics' complete line of
spectroscopic accessories to use with the USB2000+.
Most accessories have SMA connectors for application
flexibility. Changing the sampling system is as easy
as unscrewing a connector and adding new components
or accessories, such as light sources, sampling
holders, filter holders, flow cells, fiber optic
probes and sensors, collimating lenses, attenuators,
diffuse reflectance standards, integrating spheres
and an extensive line of optical fibers.

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Physical |
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Dimensions: |
89.1 mm x 63.3
mm x 34.4 mm |
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Weight: |
190 grams |
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Detector |
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Detector: |
Sony ILX511B linear silicon CCD array |
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Detector range: |
200-1100 nm |
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Pixels: |
2048 pixels |
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Pixel size: |
14 μm x 200 μm |
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Pixel well depth: |
~62,500 electrons |
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Sensitivity: |
75 photons/count
at 400 nm; 41 photons/count at 600 nm |
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Optical Bench |
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Design: |
f/4, Symmetrical
crossed Czerny-Turner |
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Focal length: |
42 mm input; 68
mm output |
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Entrance
aperture: |
5, 10, 25, 50,
100 or 200 µm wide slits or fiber (no slit) |
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Grating options: |
14 different
gratings, UV through Shortwave NIR |
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HC-1 grating
option: |
No |
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Detector
collection lens option: |
Yes, L2 |
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OFLV filter
options: |
OFLV-200-850;
OFLV-350-1000 |
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Other bench
filter options: |
Longpass OF-1
filters |
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Collimating and
focusing mirrors: |
Standard or SAG+ |
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UV enhanced
window: |
Yes, UV2 |
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Fiber optic
connector: |
SMA 905 to 0.22
numerical aperture single-strand optical
fiber |
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Spectroscopic |
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Wavelength
range: |
Grating
dependent |
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Optical
resolution: |
~0.3-10.0 nm
FWHM |
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Signal-to-noise
ratio: |
250:1 (at full
signal) |
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A/D resolution: |
16 bit |
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Dark noise: |
50 RMS counts |
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Dynamic range: |
2 x 10^8
(system); 1300:1 for a single acquisition |
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Integration
time: |
1 ms to 65
seconds |
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Stray light: |
<0.05% at 600
nm; <0.10% at 435 nm |
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Corrected
linearity: |
>99.8% |
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Electronics |
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Power
consumption: |
250 mA @ 5 VDC |
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Data transfer
speed: |
Full scans to
memory every 1 ms with USB 2.0 or 1.1 port,
300 ms with serial port |
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Inputs/Outputs: |
No |
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Analog channels: |
No |
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Auto nulling: |
No |
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Breakout box
compatibility: |
No |
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Trigger modes: |
3 modes |
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Strobe
functions: |
Yes |
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Gated delay
feature: |
Yes |
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Connector: |
22-pin connector |
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Computer |
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Operating
systems: |
Windows
98/Me/2000/XP, Mac OS X and Linux with USB
port; Any 32-bit Windows OS with serial port |
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Computer
interfaces: |
USB 2.0 @ 480
Mbps; RS-232 (2-wire) @ 57.6 K baud |
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Peripheral
interfaces: |
I2C
inter-integrated circuit |
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