## Test Stand Instrumentation A dedicated ground test stand for HTP thruster evaluation came online with comprehensive instrumentation: load cell for thrust measurement, pressure transducers, temperature sensors, and high-speed data acquisition at 1 kHz sampling rate. This enables capture of transient behavior during startup and shutdown. ## Measurement Systems Thrust measurement uses a load cell mounted on a rigid frame with 0.1 newton accuracy. Propellant feed line and chamber pressure are measured with piezoelectric transducers for fast response. Temperature measurement at propellant inlet, thruster chamber, and exhaust uses Type K thermocouples for wide range and solid accuracy. ## Data Acquisition Computer-based system with analog-to-digital converters samples all sensors at 1 kHz, providing excellent time resolution. Data streams to disk for analysis. Test stand is located on a concrete pad in a dedicated test area with proper safety systems—blast shields, remote propellant feed control, and emergency shutdown procedures. HTP is a strong oxidizer and hazardous, so safety is non-negotiable. ## Operational Status Several test fires verified instrumentation operation and data quality. Thrust rise time, chamber pressure dynamics, and temperature transients are captured in crisp detail. The test stand enables systematic testing of catalyst formulations and thruster geometries with high confidence in results.