accuracy, higher sampling rate, lower storage cost
Erev-1+ is a high-precision proton
magnetometer developed according to the suggestions of many customers for field
use. It is a portable, solid proton magnetometer with higher acquisition
accuracy produced by the latest electronic technology.
- High-precision magnetic
survey and prospecting
- Magnetic substrate and
- Seismic precursor and
volcanic precursor observation
- Engineering and environmental
- Coalfield and hydrological
exploration, pipeline and underground explosives detection
- Oil and gas exploration
- EREV-1+ has the lightest
weight of any magnetometer. The main unit weighs only 1.8 kg including the
- EREV-1+ has complete time
synchronization function, all single point magnetometers and station
for measuring diurnal variation of geomagnetic field have the exact same
- EREV-1+ has a high sampling
rate without loss of accuracy.
- EREV-1+ has an original time
synchronization system to get more accurate magnetic field values.
tedious setting and complicated combination of keys, just one key can collect
the precise magnetic field value.
automatic magnetic field tuning function, without the operator to guess the
magnetic field value.
- With self-check function, the
instrument can be repaired better in case of problems in the field..
- EREV-1+ is sturdier, more durable,
lighter, easier to maintain, and more suitable for field exploration in harsh
- Original timing
synchronization system, all instruments follow a specific time sequence of
daily variation, no interpolation is required for daily variation correction,
avoiding interpolation errors and getting the most accurate magnetic field
- Obtaining highly sampled
daily variation data without loss of accuracy.
- With the features of original
gradient mode continuous sampling, absolute synchronization function, and
completely unaffected by the daily variation, the instrument performance and
measurement accuracy are good determined and the gradient accuracy is far more
than similar products on the market.
- With two sets of timing
calibration systems and thermostatic crystal and GPS to synchronize the timing,
the synchronization accuracy can reach within 1us, making the high-precision
gradient magnetic field readings more accurate. All magnetometers can achieve
microsecond synchronization accuracy.
- Full range auto-tuning, no
more artificial pre-tuning field range, no longer only auto-tuning adjacent
range of magnetic field.
- EREV-1+ constantly and
automatically calibrates the clock with GPS, which not only makes the
measurement completely accurate, but also keeps a high degree of consistency
- The two channel boards of the
gradient magnetometer support interchangeability and random combination, which
makes it more convenient for gradient measurement and troubleshooting in
various modes. The gradient magnetometer has higher cost performance.
<0.2nT, generally 0.1-0.2nT(>2
Regular noise value
10,000nT - 150,000nT
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
synchronous (continuous or single point),
asynchronous (single point)
GPS（Built-in Systems）, positioning accuracy 2.5m
6.4km under pass-vision, the actual
communication distance is related to the configured antenna, optional
less than 1us
single point, continuous, gradient, gradient
16GB SD card as standard and support 32GB
and large capacity SD card
SD card or USB cable
14.8V, 6Ah non-magnetic lithium battery,
optional external 12V, 12Ah conventional lithium battery for daily change
-40 ℃ to 70 ℃
Erev OGM-link including diurnal correction processing, moving average filter , bad point deletion, averaging the same points,
instrument noise calculation, drawing profile map, track back,
support GPS format conversion