The OTG-M Series of fiber optic temperature sensors from OpSens (OTG-M170, OTG-M220, OTG-M360, OTG-M420, OTG-M600, OTG-MPK5, and OTG-MPK8) delivers exceptional performance. The OTG-M Series sensors employ a tried-and-tested method of temperature transduction based on the temperature-dependent bandgap of Gallium Arsinide (GaAs) crystal.
This sensor type is practical for tip measurement applications because of the minicule GaAs crystal positioned at the tip of an optical fiber. The response time and the sensor’s diameter (OD) are what make each model of the OTG-M series unique.
The OTG-M Series provides unprecedented repeatability and reliability in the toughest conditions, such as high levels of EM, RF, MR, and microwave field environments, when combined with OpSens' SCBG signal conditioning technology and the benefits of measuring using light.
The OTG-M Series is manufactured using optical fiber that is industry standard and works with all SCBG signal conditioners from OpSens. This small and dependable fiber optic temperature sensor may be customized for OEM or customer-specific applications and comes with a variety of optical cables and sheath choices.
Key Features
- Immune to EMI, RFI, MRI, and microwave radiation
- Robust and compact design with exceptional repeatability
- OEM and customized versions
- Good precision
- Intrinsically secure
Applications
- Monitoring of temperature changes
- Disposable sensor, inexpensive
- Applications that need compact sensors
- High-voltage surroundings
- Microwave, RF, and EM settings
OTG-M Series
Fiber Optic Temperature Sensor
Image Credit: OpSens Medical
Specifications
Source: OpSens Medical
| |
| Sensor model |
OTG-M170 |
OTG-M220 |
OTG-M360 |
OTG-M420 |
OTG-M600 |
OTG-MPK5 |
OTG-MPK8 |
| Response time |
≤35 ms |
≤50 ms |
<100 ms |
<200 ms |
200 ms |
<225 ms |
<500 ms |
| Sensor diameter |
0.170
mm |
0.220
mm |
0.360
mm |
0.420
mm |
0.600
mm |
0.510
mm |
0.810
mm |
| Sensor tip material (Tube) |
Bare fiber |
Polyimide |
Glass |
Polyimide |
Polyimide |
PEEK |
PEEK |
| Temperature operating and calibrated range |
-40 °C to +250 °C (other ranges available upon request) |
| Accuracy |
±0.8 °C or better for other temperature range |
| Operating humidity range |
0-100% |
| EMI/RFI Susceptibility |
Complete immunity |
| Calibration |
NIST traceable |
| Cable length |
1.5 meters standard (other lengths available) |
| Optical connector |
LCA, ST, standard |
| Cable sheathing |
TeflonTM |
| Signal conditioner compatibility |
All Opsens Solutions GaAs (SCBG) signal conditioners |