The STM-2, small in size and price, big in performance. This USB powered thin film monitor comes with everything you need to connect a QCM sensor/feedtrough to a Windows® computer. Allowing up to eight STM-2s monitoring up to eight sensors can be connected to a computer simultaneously.
Features
- Most economic QCM monitor
- Internal oscillator (no external oscillator or power supply is required)
- High accuracy at 10 measurements per second
- Compatible with an external oscillator
- Size and simplicity make setup & operation easy & efficient
Applications
- Research and development
- Industrial vacuum coating
- Display
- Optics
- Semiconductor
- Solar
Notes:
- We do not recommend extending the USB beyond the cable shipped with the STM-2.
- Additionally, with the BNC cable, there is a length maximum from oscillator to crystal of 1 m. This includes the BNC from the oscillator to the feedthrough as well as the in-vacuum cable.
Specifications Table
Model | STM-2 |
---|---|
Interface Connector | USB, v1.1 or later capable of providing 400 m A, 5 V (dc) |
Sensor Input | One, female BNC |
Measurement Frequency Range | 6.0 to 5.0 MHz (fixed) |
Frequency Resolution | +/-0.03 Hz at 6 MHz |
Measurement Interval | 0.10 s |
Reference Frequency Stability | +/-2 ppm |
Thickness and Rate Resolution/Measurement | +/-0.037 Å |
Thickness Display Resolution | 1 Å (display on software only) |
Computer Requirements | Windows 2000, Windows XP, Windows Vista, Windows 7 or Windows 8 with one available USB 1.1 (or later) port for each STM-2 |
Compatible Sensors | Non-shuttered single QCM sensor |
Weight | 0.13 lbs (0.057 kg) |
Dimensions | 4.5" x 3" x 1" (114mm x 76mm x 25mm) |
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Ordering Table
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