Which outcome occurs when a proportional valve's pilot stage suffers increased internal leakage?

💡 Explanation

When pilot stage leakage increases, flow command signal to the main stage spool is disturbed because pressure balance is skewed thus hysteresis increases. Therefore valve resolution degrades where it is harder to precisely maintain set position, rather than improved response, stability or contamination resistance which require intact pilot stages.

• Which unstable behavior occurs if a PLC controlling a robotic arm welding system lacks adequate filtering of encoder feedback?
• Which effect occurs in a turbocharged diesel engine when exhaust gas recirculation valve sticks open?
• Which mechanism limits silicon carbide (SiC) MOSFET switching frequency?
• Which transmission impairment increases during wavelength division multiplexing (WDM) systems?
• Which consequence results when a local oscillator's frequency drifts in a software-defined radio (SDR)?
• Which consequence results when a column's slenderness ratio increases within Euler buckling constraints?