Contents -- Abstracts & keywords -- Editorial -- Sensing the arc -- A review of the latest developments -- Developments in thermal imaging technology -- The fast moving world of terahertz technology -- Non-contacting optical sensors for real-time water quality monitoring -- Remote gas detection using ambient thermal infrared -- Fibre Bragg sensors used to measure gas temperature in an airship -- US company develops high sensitivity gas detector based on novel laser technology -- The contribution of thermoreflectance to high resolution thermal mapping -- An entropy-switched adaptive smoothing approach for time series data -- Experimental investigation into low pressure gas discharges microwave electric field optical senior probes -- Thin films of (TeO2)1-x(In2O3)x as gamma radiation sensors -- Multi-tip sparker for the generation of acoustic pulses -- Monitoring plasma jets containing micro particles with chromatic technologies -- Mini features -- New products -- Internet page -- Book reviews -- Patent abstracts -- Diary -- Note from the publisher.