Keyword: Energy storage systems

Briefs: Electronics & Computers

Improved pulsed inductive plasma accelerators are undergoing development for use as long-life thrusters for propulsion of spacecraft on interplanetary missions and for maneuvering...

Briefs: Materials

The anode separators in rechargeable lithium-ion electrochemical cells that contain carbon lithium-intercalating anodes with copper current collectors would be modified, according to...

Briefs: Materials

Several modifications of the basic design of carbon lithium-intercalating anodes with copper current collectors in rechargeable lithium-ion electrochemical cells have been proposed. These...

Briefs: Test & Measurement

The figure illustrates a silicon micromachined accelerometer currently under development that is designed specifically for seismologic applications. The device is designed for a sensitivity of...

Briefs: Mechanical & Fluid Systems

A two-body design has enabled an instrumented penetrator projectile to function with increased tolerance to initial misalignment among (a) the longitudinal axis of the penetrator, (b) the...

Briefs: Physical Sciences

Microfabricated, silicon-based capacitive actuator/sensor devices have been developed as prototypes of compact, low-power transducers that would be used to detect the presence (and perhaps eventually measure the...

Briefs: Motion Control

The figure schematically illustrates part of an accelerometer in which a feedback control subsystem applies voltages to generate electrostatic forces to minimize the displacement of a...

Briefs: Energy

Experiments have shown that improved hydride-forming negative electrodes for rechargeable nickel/metal hydride (Ni/MH) electrochemical cells can be made by substituting Ge for...

Briefs: Materials

Experiments have shown that improved hydride-forming negative electrodes for rechargeable nickel/metal hydride (Ni/MH) electrochemical cells can be made by substituting Sn for...

Briefs: Electronics & Computers

A portable, self-contained, compact instrument measures and records transient electric fields generated by nearby lightning strikes. This instrument complements, and in many respects...

Briefs: Robotics, Automation & Control

An improved hybrid thermal/mechanical system has been developed to protect airplane wings and other airfoils against the accretion of ice, which degrades aerodynamic performance. The...

Briefs: Electronics & Computers

A circuit has been designed to debounce a mechanical switch, which is used to activate a digital circuit. Contacts tend to make and break connections several times until the switch contacts settle...

Briefs: Electronics & Computers

The figure illustrates the major functional blocks of an impedance-based cable-testing apparatus that can locate an open or short circuit in a cable. There is no need to disconnect the cable from all other...

Briefs: Energy
Solar-Powered Aerobots With Power-Surge Capabilities

Advanced aerobots that would be powered by solar photovoltaic batteries and that would be capable of storing energy for occasional operation during short intervals at power levels far beyond those of the photovoltaic batteries have been proposed. Aerobots are robotic balloon-buoyed airborne...

Briefs: Electronics & Computers

Curves of limiting voltage (V) as a function of temperature (T) for nickel/cadmium cells and batteries can be computed by use of a mathematical cell model based on first...

Briefs: Energy

Rechargeable, thin-film, lithium-based microbatteries of the proposed type would be manufactured in the discharged condition, and lithium anodes would be formed in situ during...

Briefs: Electronics & Computers

Data signals can be transmitted via the same optical fibers that are used to transmit power from base stations to remote stations containing sensors and associated circuitry. [A prototype...

Briefs: Electronics & Computers

Hybrid high-temperature-superconductor (HTS)/semiconductor planar oscillator circuits that operate at a frequency of 8.4 GHz have been developed. In the original intended application,...

Briefs: Electronics & Computers

A newly developed instrument, designed at Marshall Space Flight Center, uses the resistance to alternating current running through a device to measure the variances in...

Trending Stories

Briefs: Physical Sciences

Passive Radiative Cooler for Use in Outer Space

Articles: Mechanical & Fluid Systems

Basic Pneumatic Circuits

Articles: Photonics/Optics

Defining and Measuring “LOOSE TIGHT BUFFER” in Fiber Optic Cables

Articles: Manufacturing & Prototyping

The Many Benefits of Smart IIoT Connected Factories