| Share | Phrase |
|---|
| 11.22% | infrared [physical/chemical] spectrum |
| 10.06% | infrared [physical/chemical] emitter |
| 9.19% | infrared [physical/chemical] radiation |
| 6.09% | infrared [physical/chemical] sensor |
| 5.58% | infrared [physical/chemical] generator |
| 5.36% | infrared [physical/chemical] ray |
| 3.56% | infrared [physical/chemical] light |
| 3.44% | infrared [physical/chemical] emitter-detector |
| 3.44% | infrared [physical/chemical] receptor |
| 3.35% | infrared [physical/chemical] detector |
| 3.31% | infrared [physical/chemical] analysis |
| 3.30% | infrared [physical/chemical] absorption |
| 3.08% | infrared [physical/chemical] energy |
| 2.36% | infrared [physical/chemical] body |
| 2.29% | infrared [physical/chemical] radiator |
| 1.87% | infrared [physical/chemical] emission |
| 1.72% | infrared [physical/chemical] spectroscopy |
| 1.62% | infrared [physical/chemical] dye |
| 1.60% | infrared [physical/chemical] transmitter |
| 1.45% | far [temporal] infrared |
| 1.35% | infrared [physical/chemical] system |
| 1.27% | infrared [physical/chemical] diode |
| 1.25% | infrared [physical/chemical] region |
| 1.25% | infrared [physical/chemical] beam |
| 1.24% | infrared [physical/chemical] coupler |
| 1.14% | infrared [physical/chemical] absorbance |
| 1.11% | infrared [physical/chemical] switch |
| 1.04% | infrared [physical/chemical] source |
| 0.99% | infrared [physical/chemical] lamp |
| 0.92% | infrared [physical/chemical] wave |
| 0.87% | infrared [physical/chemical] heater |
| 0.80% | infrared [physical/chemical] subsystem |
| 0.73% | infrared [physical/chemical] device |
| 0.70% | infrared [physical/chemical] range |
| 0.45% | infrared [physical/chemical] signal |
| 0.44% | infrared [physical/chemical] type |
| 0.34% | infrared [physical/chemical] means |