Table 9.
Comparison of different temperature measurement sensors (the first entry refers to our system).
| Sensor Type | Temperature Range (°C) | Accuracy (°C)/Resolution (°C) | Energy (mW) @ MF a (Hz) | Supply (V) | Connectivity | Ref |
|---|---|---|---|---|---|---|
| Thermistor | 5 to 45 | ±0.03/0.02 | 0.196 @ 0.003 | 3–3.6 | ZigBee | |
| Thermo-couple | 0 to 200 | ±0.08/0.01 | – | – | RS-232C | [17] |
| Thermistor | 15 to 30 | ±0.1/0.002 | 1 @ 1 | 3.6 | BLE | [18] |
| Silicon | 0 to 60 | ±0.5/0.02 | – | 3 | ZigBee | [20] |
| Thermistor | 31 to 41 | ±0.2/0.01 | 1 @ 0.02 | 3.3 | Bluetooth | [21] |
| Silicon | 35 to 45 | ±0.1/0.035 | 110 × 10−6 @ 1 | passive | Tag/Reader at 868 MHz | [22] |
| Antenna | 40 to 100 | ±1.5 °C/– | – | passive | Tag/Reader at 5–6 GHz | [26] |
| Silicon | −40 to 125 | ±0.2/0.01 | 0.0032 @ 1 | 2.1–3.6 | I2C | [45] |
| RTD | 0 to 50 | ±0.5/0.1 | 3 yrs @ 0.001 | 3.6 | WiFi | [46] |
| Silicon | 10 to 50 | ±0.5/0.05 | 3 yrs @ 1 | 3 | BLE | [47] |
| Thermo-couple | −40 to 85 | ±0.5/0.03 | 5 yrs @ 0.001 | 3.6 | Probe/Reader at 20 KHz | [48] |
a Measurement frequency.