The ESP-64HD series 64 channel electronic pressure scanners are miniature electronic differential pressure measurement units consisting of an array of silicon piezoresistive pressure sensors, one for each pressure port.
The sensors in the ESP-64HD electronic pressure scanner are mounted on a common hybrid ceramic substrate using a proprietary technique which maximizes long term stability. The outputs of the sensors are electronically multiplexed through a single onboard instrumentation amplifier at rates up to 70,000 Hz using binary addressing. The multiplexed amplified analog output is capable of driving long lengths of cable to a remote A/D converter. The ESP scanners also incorporate a two-position calibration manifold actuated by momentary pulses of control pressures. When placed in the calibrate position, all sensors are connected to a common calibration pressure port. A series of accurately measured pressures can be applied through this port to characterize the sensors, in place, at the condition to which they are being subjected. Proper and periodic on-line calibration maintains static errors within ±0.03% or better of the full scale (FS) pressure range. The calibration manifold automatically switches between two common reference pressures to ensure a stable reference is applied during calibration. The calibration manifold incorporates a visual position indicator and utilizes a dynamic o-ring seal design for high reliability and easy servicing in the field.
Benefits
Unparalleled long term stability
Digital Temperature Compensation (DTC)
Individual offset and thermal zero compensation
Automatically switched reference pressures
Optional isolated purge capability
Optional temperature sense output
Applications
In-Model wind tunnel testing
Aircraft Flight testing
Automotive track testing
Features
Please review product documents or contact us for the latest agency approval information.