TY - SER AU - Latrasse, C. [and other] TI - Variable-sampling-rate sigma-delta modulator for instrumentation and measurement KW - ABSOLUTE FREQUENCY CONTROL KW - TEMPORAL MEASUREMENT KW - PLASMA DENSITY VARIATIONS KW - SEMICONDUCTOR BRIDGE KW - NOISE MEASUREMENT KW - MICROWAVE TRANSISTORS KW - HISTOGRAM TESTING KW - FIR FILTERS KW - DIGITAL SIGNAL-PROCESSING TECHNIQUE KW - COMPENSATING ULTRASONIC SENSORS KW - CAPACITIVE SENSOR ARRAY KW - AIR-FLOW SENSORS KW - VECOTR MEASUREMENT KW - NONLINEAR TRANSFER FUNCTION KW - HARMONIC ER -