Spectroscopy and Organic Compound Analysis
QDC Analog Sensor
KEMET’s QDC thin-film pyroelectric food sensors can be reduced in physical size and still provide high sensitivity with fast frequency operation, enabling this highly stable 2 element sensor in a TO39 package. The sensor element is built into a low noise circuit that has an internal CMOS operational amplifier with a 10 GΩ feedback resistor outputting a voltage signal centered around half the supply rail.
| Part Number | Channel 1
Filter – CWL / (HPB) |
Channel 2
Filter – CWL / (HPB) |
Use | ||
|---|---|---|---|---|---|
 |
USEQDCDAFAT100 | Fat Reference – 5.60 μm/(80 nm) | Fat – 5.73 μm/(80 nm) | Fat | |
| USEQDCDALAC100 | Lactose Reference – 7.70 μm/(140 nm) | Lactose – 9.61 μm/(150 nm) | Lactose | ||
| USEQDCDAPAL100 | Protein – 6.46 μm/(130 nm) | Lactose – 9.61 μm/(150 nm) | Protein and Lactose | ||
| USEQDCDAPRT100 | Protein Reference – 6.70 μm/(120nm) | Protein – 6.46 μm/(130 nm) | Protein | ||
| USEQDCDASUG100 | Reference – 5.0 Long Pass | Sugar, Ethanol – 9.50 μm/(400 nm) | Sugar & Ethanol |
| Features and Benefits | Applications for Organic Compound Detection & Analysis |
|---|---|
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QDA Linear Array Sensor
KEMET’s QDA line sensor arrays, or linear arrays, utilize unique thin-film pyroelectric PZT material to offer outstanding resolution and performance across a wide infrared wavelength range. The ASIC readout electronics output is a multiplexed, amplified, and filtered analog signal for each sensor element. The sensor is housed in a low-profile sealed metal package along with a temperature sensor and can be fitted within a choice of filter windows. An additional “+1” sensor element can provide higher sensitivity on a discrete wavelength, typically for lubrication oil or foodstuffs. This +1 sensor is located for ATR and transmission use.
| Part Number | Number of Pixels (Sensor Elements) | Filter Type | Transmission Wavelength | Use | |
|---|---|---|---|---|---|
 |
USEQDAAA510100 | 510 | Broadband (AR Silicon) | – | Small spectroscope, Inspection equipment |
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USEQDAAA255S00 | 255 | Broadband (AR Silicon) | – | Small spectroscope, Inspection equipment |
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USEQDAAA128S00 | 128 | Broadband (AR Silicon) | – | IR spectrometer, Spectral analyzer |
| USEQDAAA128L00 | 128 | Linear Variable Filter | 5.5 – 11.0 μm (cwl 2%) | IR spectrometer, Spectral analyzer | |
| USEQDAAA128500 | 128 | Linear Variable Filter | 2.5 – 5.0 μm (cwl 2%) | IR spectrometer, Spectral analyzer | |
 |
USEQDAAA128W00 | 128+1 | Linear Variable Filter | 5.5 – 11.0 μm (cwl 2%) [2.90 μm/300 nm for water content] |
High SNR fat analysis |
| USEQDAAA128A00 | 128+1 | Linear Variable Filter | 5.5 – 11.0 μm (cwl 2%) [2.90 μm/300 nm for fat “A” content] |
| Features and Benefits | Applications for Organic Compound Detection & Analysis |
|---|---|
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QDA Sensor Evaluation Kit
To allow for further in-depth testing, there are three different types of Linear Array demo kits.
- USEQDAK6000000 Kit: Base level evaluation kit with microprocessor-controlled motherboard
- USEQDAK7000000 Kit: Fixed sensor evaluation kit for ATR-based spectroscopy
- USEQDAK8000000 Kit: Fixed sensor evaluation kit for transmission-based spectroscopy
| Part Number | Supported Sensors | Includes | |
|---|---|---|---|
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USEQDAK6000000 |
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USEQDAK7000000 |
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| USEQDAK7128L00 |
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| USEQDAK7128500 |
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USEQDAK8000000 |
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| USEQDAK8128L00 |
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| USEQDAK8128500 |
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