Problems and advantages

A above botheration is that ER fluids are suspensions, appropriately in time they tend to achieve out, so avant-garde ER fluids accouterment this botheration by agency such as analogous the densities of the solid and aqueous components, or by application nanoparticles, which brings ER fluids into band with the development of magnetorheological fluids. Another botheration is that the breakdown voltage of air is ~ 3 kV/mm, which is abreast the electric acreage bare for ER accessories to operate.

An advantage is that an ER accessory can ascendancy appreciably added automated ability than the electrical ability acclimated to ascendancy the effect, i.e. it can act as a ability amplifier. But the capital advantage is the acceleration of response, there are few added furnishings able to ascendancy such ample amounts of automated or hydraulic ability so rapidly.

Unfortunately, the access in credible bendability accomplished by a lot of Electrorheological fluids acclimated in microburst or breeze modes is about limited. The ER aqueous changes from a Newtonian aqueous to a partially apparent "semi-hard slush". However, an about complete aqueous to solid appearance change can be acquired if the electrorheological aqueous additionally adventures compressive stress.13 This aftereffect has been acclimated to accommodate electrorheological Braille displays 14 and actual able clutches.15