About
Motivation： We are dealing with piezo crystal products. We are considering new analysis technique that combining piezo sensor and spectrometer measurements. However, commercially available multichannel spectrometer is very expensive, $2,000-$4,000 . So we decided to develop by our self.
System : In the measurement system, connect the PC and spectrometer via USB, and measurement software perform data acquisition and graph display.
Data can be saved as a text (csv) file.
In addition, initial calibration is performed at the time of manufacturing and shipping, it is possible for users to recalibrate easily.
Filters and slits can be changed arbitrarily by the user depending on the wavelength and intensity of light.
The spectrometer uses mirrors and diffraction gratings. The photograph shows that a spectrum with incidence of a Hg lamp. You can see green, blue and purple on the right side of the screen.
Calibration :
1, Pre-measurement is occurred to using Hg lamp* . Software using dummy Pixel No. and wave length. *Hg-Ar is better.
2. Result of pre-measurement gives true pixel No. and wave length.
3. To overwrite a calibration file. (column A; pixel No., column B wave length)
Structure : The internal structure consists of a spectroscope, a CCD sensor, and a PCB substrate.
Contents :
-Spectrometer (slit, filter : customer's choice) x1
-Software (English or Japanese) x1
-Hex wrench x1
Risks and challenges
This spectrometer is easy to used but technical. We hope that you are interested in physics, biochemistry, DIY. We will do our utmost to deliver product as promised, however our project has a number of risks that include:
1) Manufacturing delays
We have specified a delivery time-frame of 3 months in the hopes that we will end up surpassing expectations. However there is no way to guarantee we will produce the spectrometer by our published date.
2) Minor changes to product dimensions based on design finalization
The final dimensions may change slightly as we finalize our CAD designs for manufacturability. If there are space-saving optimizations that can be made, we will surely take them to reduce the device's footprint. And if the off-the-shelf BOM components we've selected become unavailable in bulk, we may also need to adjust our designs to compensate for alternative components.
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Funding period
- (17 days)