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Electronic Shutter Prevents SaturationIntegration Time is a setting in our software that is specified by the user. It’s analogous to the shutter speed of a camera: the value specified for the integration time is the amount of time the detector “looks” at the incoming photons. Because the Toshiba detector has an electronic shutter, you can specify, via software, minimum integration times as short as 3.8 milliseconds, which allow you to measure transient events like laser pulses (for even faster integration times using the External Hardware Trigger Mode, see our HR2000+ Spectrometer). Also, the ability to integrate the spectrometer for short durations eliminates saturation problems that can occur in high light-level applications such as laser analysis. |
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| One popular application for the HR4000 is laser analysis. A typical setup may look something like this: a laser’s beam is directed into a FOIS-1 Integrating Sphere. An optical fiber collects the light and sends it to the HR4000. |
The HR4000’s onboard microcontroller provides you with considerable flexibility in controlling the spectrometer and accessories. Through a 30-pin connector, you can implement all operating parameters in the software: control light sources, create processes, and retrieve information on external objects. You have access to 10 user-programmable digital inputs/outputs for interfacing to other equipment; one analog input and one analog output; and a pulse generator for triggering other devices. (Programming the GPIOs requires SpectraSuite, OmniDriver or one of our other device drivers.)
The HR4000 interfaces to a computer via USB 2.0 or RS-232 serial port. When using the serial port, the HR4000 requires a single 5-volt power supply (not included). Data unique to each spectrometer are programmed into a memory chip on the HR4000; our SpectraSuite Spectroscopy Operating Software reads these values for easy setup and hot swapping among computers, whether they run on Linux, Mac or Windows operating systems.
At Ocean Optics, we understand that your work is unique and that you want a spectrometer to fit your specific needs. With the HR4000 Spectrometer, you can configure the bench for your application. Choose HR4000 Optical Bench Options such as entrance aperture size, detector accessories, filters a grating and more. Our application scientists will help you determine which configuration will best work for you.
Our HR4000 Manual provides you with instructions for setting up, calibrating and performing experiments with your HR4000 spectrometer.
The HR4-BREAKOUT is a passive module that provides access to a variety of functions found in the HR4000. The BREAKOUT BOX allows multiple interfaces to a spectrometer such as: external triggering, GPIO, light sources, RS-232 interface and analog input/output.
| Item | Description | Price |
| HR4000 | HR4000 User-configured Spectrometer. User to specify an HR4000 Detector (see 3 detector options) and HR400 Spectrometer Optical Bench Options | $4619 |
| HR4-BREAKOUT | Breakout Box with easy access to HR4000 Functions | $289 |
| SpectraSuite | SpectraSuite Spectroscopy Operating Software | $199 |
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Physical |
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| Dimensions: | 148.6 mm x 104.8 mm x 45.1 mm |
| Weight: | 570 grams |
| Detector | |
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Detector: |
Toshiba TCD1304AP linear CCD array |
| Detector range: | 200-1100 nm |
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Pixels: |
3636 pixels |
|
Pixel size: |
8 μm x 200 μm |
|
Pixel well depth: |
~100,000 electrons |
| Sensitivity: | 130 photons/count at 400 nm; 60 photons/count at 600 nm |
| Optical Bench | |
| Design: | f/4, Symmetrical crossed Czerny-Turner |
| Focal length: | 101.6 mm input and output |
| Entrance aperture: | 5, 10, 25, 50, 100 or 200 µm wide slits or fiber (no slit) |
| Grating options: | 14 different gratings, UV through Shortwave NIR |
| HC-1 grating option: | provides 200-1050 nm range (best efficiency) |
| Detector collection lens option: | Yes, L4 |
| OFLV filter options: | OFLV-200-1100 |
| Other bench filter options: | Longpass OF-1 filters |
| Collimating and focusing mirrors: | Standard or SAG+UPG-HR |
| UV enhanced window: | Yes, UV4 |
| Fiber optic connector: | SMA 905 to 0.22 numerical aperture single-strand optical fiber |
| Spectroscopic | |
| Wavelength range: | Grating dependent |
| Optical resolution: | ~0.02-8.4 nm FWHM |
| Signal-to-noise ratio: | 300:1 (at full signal) |
| A/D resolution: | 14 bit |
| Dark noise: | 12 RMS counts |
| Dynamic range: | 2 x 10^8 (system); 1300:1 for a single acquisition |
| Integration time: | 3.8 ms to 10 seconds |
| Stray light: | <0.05% at 600 nm; <0.10% at 435 nm |
| Corrected linearity: | >99.8% |
| Electronics | |
| Power consumption: | 450 mA @ 5 VDC |
| Data transfer speed: | Full scans to memory every 4 ms with USB 2.0 port |
| Inputs/Outputs: | Yes, 10 onboard digital user-programmable GPIOs |
| Analog channels: | One 13-bit analog input; one 9-bit analog output |
| Auto nulling: | No |
| Breakout box compatibility: | Yes, HR4-BREAKOUT |
| Trigger modes: | 4 modes |
| Strobe functions: | Yes |
| Gated delay feature: | No |
| Connector: | 30-pin connector |
| Computer | |
| Operating systems: | Windows 98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS with serial port |
| Computer interfaces: | USB 2.0 @ 480 Mbps; RS-232 (2-wire) @ 115.2 K baud |
| Peripheral interfaces: | SPI (3-wire); I2C inter-integrated circuit |
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HR4000 Predicted Ranges and Resolution
Choosing a Grating for an "HR" Optical Bench
