A wirelessly powered flexible tag configured to be in contact with a substrate is provided. The techniques include electronic compensation in response to temperature change, fuel system cooling of the optoelectronic interface, construction of the interface and construction of the sensor tip. In some cases links connected to low reputation domain names may be excluded from search engine results. Thereafter, a gate pattern layer is formed on the first insulation pattern layer. Times of flight are measured for the collection of time-gated data.