
Opsens Solutions’ OTG-M170 fiber optic temperature sensor offers the smallest optical temperature sensor in the industry. The OTG-M170 sensor uses the well proven technique based on the temperature-dependent bandgap of GaAs crystal as the temperature transduction mechanism. Its small sensing GaAs crystal located at the tip of the optical fiber makes it convenient for tip measurement applications.
Combined with Opsens Solutions’ SCBG (Semiconductor Bandgap) signal conditioning technology and with the inherent advantages of fiber optic, the OTG-M170 delivers unprecedented repeatability and reliability in the most adverse conditions such as high level of EM, RF, MR, NMR and microwave field environments.
The OTG-M170 is made with industry standard optical fiber and is compatible with all Opsens Solutions’ SCBG (Semiconductor Bandgap) signal conditioners. This compact and robust fiber optic temperature sensor is available with different optical cables and sheath options and is customizable according to customer specific applications or for OEM-type applications.
Benefits
- Fastest response time
- Smallest and robust design
- Good accuracy and outstanding repeatability
- EMI/RFI and microwave immune
- Intrinsically safe
- OEM-type and custom version
Applications
- RF, ultrasound environments
- Temperature monitoring for industrial applications
- Surface and core temperature monitoring in MRI environments
Typical temperature operating range | -40 °C to + 250 °C (Other ranges available upon request) |
Resolution | 0.01 °C |
Accuracy | ± 0.8 °C or better for other temperature range |
Response time | 10 ms or better |
Operating humidity range | 0-100 % |
MRI/EMI/RFI susceptibility | Complete immunity |
Calibration | NIST traceable |
Cable length | 1.5 meters standard (Other lengths available) |
Optical connector | LCA, ST standard |
Cable sheathing | Teflon™ ( ≥ 85 °C) |
Signal conditioner compatibility | All Opsens Solutions’ SCBG signal conditioners |
Opsens Solutions Inc. reserves the right to make any changes to the above specifications without prior notice.

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