JESSY SMART

JESSY SMART is a novel measuring device for fast three-dimensional geomagnetic mapping of hidden subsurface anomalies.

JESSY SMART localizes smallest earth magnetic field gradient inhomogenities in a depths of up to
approx. 10 meters. The sensors are mounted onto a cart which can be moved attached to a motor car or alternatively pushed along manually.

To achieve the highest detection rates the system applies the most sensitive sensors presently available, Superconducting Quantuum Interference Devices (SQUIDs).  

Advantages compared to conventional geomagnetic methods

• highest possible magnetic field resolution (sensor 7 fT/cm)
• fast mapping of measuring area (up to 7 acre and accordingly 3 ha/hour)
• very accurate position and spatial resolution of data in cm range)
• measurement in difficult ground, environment, and climate conditions possible
• nondestructive measuring and a high planning reliability  
  

System components

Component	Description
Cryostat	Nonmagnetic, low noise dewar for liquid helium, refilling interval 2-3 days
Sensor carrier	nonmagnetic, low noise, attachable to motor-car or to be pushed along manually
Data acquisition	Analogue to digital conversion and data transmission to computer
Initial unit	sensors, and differential GPS for the determination of position and motion
Software easymag	fast interpretation, magnetogramm, Detection of anomalies, depth information, visualisation

Application fields

Archeology: Nondestructive detection of hidden anthropological remnants: e.g. metal objects, building structures, cavities, charcoal, ashes, clay, ceramics, bricks.
Case Study I-Archeology
Case Study II-Archeology

Building ground analysis: Remnants of foundations, fillings, metal materials, power lines, pipelines, unexploded ordinances, ground contaminations.
Case Study III-Building ground analysis
Case Study IV-Building ground analysis

Geology: detection of geological formations, river structures, natural magnetic anomalies, natural resources.

Localisation of unexploded ordnances: unexploded bombs, weapons and munitions.
Case Study V-Localisation of unexploded ordnances (UXO)
Case Study VI-Localisation of unexploded ordnances (UXO)