Narrow Results

For a certain faulted feeder selection device equipped on the neutral un-effective grounding distribution system (NUGS), it is conventionally hard to obtain the all-around performance with sufficient on-site information as the fault condition is extremely uncertain. According to the study for conventional structure of the distribution system, an NUGS is established on the real-time digital simulator (RTDS) platform, so that the faulted feeder selection devices can thus be tested under various fault conditions. By virtue of this method, various devices can be roundly tested in a very short duration.

Piezoelectric stick-slip actuator (PSSA) is well-known by its simple configuration, minute step size, high resolution and theoretically unlimited displacement, and has been used in applications where high positioning resolution with large range of movement is required. This project designs an experimental test platform of stick-slip actuator which can be used to investigate the effects of temperature and pressure to the performance of end-effector. Embedded construction is applied for temperature sensor installation, which makes it easy to get more accurate temperature of the friction plate. A non-contact, electromagnet system is introduced in pressure adjustable mechanism. By changing the voltage direction and magnitude of coil, the pressure can be adjusted.

Magnetic random-access memory (MRAM) is a kind of desirable emerging memory, which promises non-volatility, high storage density, fast access speed and strong radiation resistivity. However, due to the immature fabrication process, reliability is a significant issue for emerging MRAM technology. In the paper, we propose and implement a MRAM reliability test platform and perform a series of tests of MRAM on this platform to evaluate MRAM reliability in terms of temperature variation, and supply voltage variation. The test results dictate the effectiveness of our proposed testing platform and illustrate relevant reliability metrics of current MRAM technology.