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Patch clamping remains the gold standard in electrical (ion channel) measurements of cells and is used in basic research and drug screening. Major drawbacks of the method are that is it slow and cumbersome - much effort has been put into producing high throughput systems (HTS). HTS currently marketed remain on the traditional materials of glass and silicon with one polymer based system. All of these...
Tungsten trioxide (WO3) thin films with Pt and Cu electrodes are characterized regarding the suitability for nonvolatile memory applications. Cells down to 70 ?? 70 nm2 are fabricated by a combination of e-beam and nanoimprint lithography. The electrical measurements reveal good properties with switching currents of only 500 nA, fast SET and RESET switching down to 5 ns and retention for 104 s with...
The water displacing oil physical simulation system and modeling method based on radial basic function network is presented in this paper. The 512 routes strobe circuit and the constant current source which can adjust the range intelligently are designed in this simulation system. According to the approximate linear relationship between the resistance rate value and the water saturation, the resistivity...
A measurement system of dynamic resistance of vehicle electronic line connector based on PXI Express(PXIe) technology was established. The system hardware was composed of PXIe box, PXIe high speed digitalizer, PXIe arbitrary waveform generator, high precision currency source and so forth. And the system operating interface was designed by LabVIEW, the virtual instrumentation software, with direct...
LSMO thin films materials have a strong interaction between their electrical and magnetic properties that could be translated into innovative tunable components. The knowledge of the electroactive and magnetoactive properties of these materials is essential for modeling and design of their novel based- devices. The activity of these materials can be described by their electro/magento resistance and...
A high power pHEMT with longer drain-gate separation can operate at higher voltage. However, it shows large output power loss at millimeter-wave in addition to the conventional parasitic power dissipation. The nonlinear drain resistance Rd of the pHEMT is found to cause the large power loss, although it behaves as a conventional resistor at low frequency. The nonlinearity of the Rd is modeled and...
Adequate modelling of MOS transistors for RF applications requires the accurate extraction of the extrinsic series resistances. In this paper, we fairly compare several RF extraction methods based on simulation results provided by an accurate foundry compact model of advanced RF MOSFETs. We present the relative sensitivity of each published RF characterization method to the measurement noise floor...
Experimental investigation of electrode potential voltage drop in liquid metal magnetohydrodynamic(LMMHD) power generator is presented in the paper. Resistance between two electrodes were measured by micro-ohmmeter with 0~20 mOmega range in different apart distance of electrodes and contact surface area. The results show that the contact resistance between liquid metal and copper electrode is very...
Existing schemespsila characteristics to measure capacitive current are analyzed, in order to measure capacitive current of distribution network in formidable conditions of coal mine. The new measurement scheme of capacitive current is put forward, which is based on a resistant added single-Phase line. Using this new method, the capacitive current of single-phase ground fault is predicted through...
The sealed winding conformance test is often performed during the final acceptance test sequence for industrial motor stator insulation. The stator winding is first completely soaked with water, then receives a 10-minute insulation resistance (IR-io) measurement, followed by a 60-second high potential (hipot) test at 1.15 times rated line-to-line voltage (Vll). A 1-minute insulation resistance (IR-i)...
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