Fiber optic temperature measurement systems
Fiber optic sensors
Our fiber optic sensors use a Gallium Arsenide (GaAs) crystal at the fiber tip, making them ideal for highly accurate temperature measurements in environments exposed to microwave radiation and high-frequency interference. Their fully non-metallic, dielectric design ensures complete immunity to electromagnetic and RF fields, significantly outperforming traditional sensors such as RTDs or thermocouples.
Designed for high‑voltage, magnetic field-intense, and harsh industrial environments, these sensors deliver the reliability and safety required in the most demanding applications.
All fiber‑optic sensors integrate seamlessly with FOTEMP monitoring devices, ensuring stable, precise, and repeatable temperature measurements.
By choosing our solution, you gain accurate temperature monitoring that supports optimal operation, enhanced reliability, and superior protection of your most valuable assets.
Contact us and get support with product selection.
Why buy
- Stable and repeatable measurements
- Resistance to extreme temperatures
- Flexible bending radius
- Resistant to electromagnetic and radio-frequency interferences
- Resistant to microwave radiations
- Versatile capabilities applicable in a wide range of applications
Application
- Power transformers
- Switchgears
- High voltage applications
- Nuclear environments
- Harsh and hazardous environments
- Instrument applications
- Aerospace applications
- Process monitoring
- Laboratories
- Medical applications
Technical data at a glance
| TS2P | TS3 | TS4 | TS5 | TST | ||
|---|---|---|---|---|---|---|
| Smallest | General purpose | Harsh chemicals | Medical | Transformers | ||
| Key features | Smallest size, direct contact measurement, Bare GaAs crystal (300 µm x 300 µm) for very small surface areas, and the fastest measurement, Semiconductor devices, and Micro Vials, Non-conductive. | Customizable semi rigid probe, Immune to EMI/RFI and Microwave emissions, Non-conductive. | High accuracy, corrosion resistant, PTFE coated, Non-conductive | Customizable probe, Small form factor, Compact size, Non-conductive | Specifically designed to be used in oil filled and dry transformers, without air inclusions, Non-conductive | |
| Long-term temperature range | -200°C up to +260°C | -200°C up to +260°C | -200°C up to +260°C | -200°C up to +260°C | -200°C up to +260°C | |
| Short-term temperature range | +260°C up to +300°C | +260°C up to +300°C | +260°C up to +300°C | +260°C up to +300°C | +260°C up to +300°C | |
| Accuracy | ± 0.2 K | ± 0.2 K | ± 0.2 K | ± 0.2 K | ± 0.2 K | |
| Thermal response | 20 K/s | 12 K/s | 7 K/s | 19 K/s | 3 K/s | |
| Probe dimension | D1: 0,45 mm D2: 1,70 mm D3: 1,30 mm |
D1: 1,00 mm D2: 1,70 mm D3: 1,30 mm |
D1: 1,00 mm D2: 1,90 mm D3: 1,30 mm |
D1: 0,55 mm D2: 1.70 mm D3: 1,30 mm |
D1: 1,30 mm D3: 3,00 mm |
|
| Other dimensions | L1: 2 mm L2: 22 mm L3: 2 – 20 m |
L1: 15-550 mm L2: 20 mm L3: 2 – 20 m |
L1: 15-550 mm L2: 13 mm L3: 2 – 20 m |
L1: 15-550 mm L2: 20 mm L3: 2 – 20 m |
L1: 10 mm L3: 3 – 20 m |
|
| Cable coating | Polyimide / PTFE | Polyimide / PTFE | PTFE | Polyimide / PTFE | PTFE | |
| Connector type | ST | ST | ST | ST | ST | |
| Optional | Nomex® J-Spacer Nomex® Disk-Spacer |
Application
| TS2P | TS3 | TS4 | TS5 | TST | Smart Spacer |
|---|---|---|---|---|---|
| General use | General use | Harsch environments | Medical & SFF | Transformers | General use |
| Radio frequency environments, High voltage applications, Semiconductors, and Medical testing | Food, Microwave oven, and RF environments | Harsch & Chemical environments, Liquid immersion | Medical environments, Catheter instrumentation, Semiconductors, Small FF | Oil-filled transformers | Transformer windings, Bus Bars, and other Switchgears |
