Thermal impedance spectroscopy has been investigated as a non-destructive technique to determine the composition of ternary mixtures of biofuels. The principle of the thermal conductivity detector has been extended for measuring both the thermal conductivity and the thermal capacity of biofuel in the range between 1 to 100 Hz, using an AC-operated polysilicon heater for injecting a sinusoidal h...

magnetic shutter, flash techniques, rotating shutters, the stroboscope and several high-speed techniques such as the Kerr Cell. Crawford and Jones explain how the measurement and calibration of the stimulus is accomplished by comparing it with a standard source using a thermopile, bolometer, photocell or other light sensitive device. They explore the knowledge of photometric and radiometric rel...

A thermopile, in which a number of thermocouple junctions are arranged on either side thin layer insulation, is commonly used to determine the heat flux for steady-state measurements. Gauges using this method available commercially and new, generic calibration described here. For purpose, an equation based physical properties has been derived theoretical relationship between measured voltage ou...

Introduction: A radiation hardened by design (RHBD) mixed-signal application specific integrated circuit (ASIC) has been designed for a thermopile readout for operation in the harsh Jovian orbital environment. The multi-channel digitizer (MCD) ASIC (shown in Figure 1) includes 18 low noise amplifier channels which have tunable gain/filtering coefficients, a 16-bit sigma-delta analog-digital con...

Quasi-Ordered Nanoforests In article number 2102840, Shaojuan Li, Haiyang Mao, Jijun Xiong, and co-workers propose a quasi-ordered nanoforest-based absorber with multi-level hybridization of plasmon resonances cavity mode for broadband high absorption. The shows independence absorption properties on polarization incident angle light. By integrating the onto thermopile device, device achieves la...