Equipment & Software for Geophysical Surveys: Design, Manufacture, Support, Supply

Overhauser base station magnetometer SmartMag

Main features:
  • High precision and sensitivity
  • The World's most compact base station magnetometer
  • Optimal for operation in magnetic observatories
  • Several SmartMags can be combined into gradiometer
  • Built-in multi-band GNSS receiver with PPK feature
SmartMag
SmartMag CAN-Ethernet interface CAN-Ethernet cable RS-232 cable RS-232 to USB logger Industrial USB Flash External GNSS receiver
Price: $9,000
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SmartMag – the World's most advanced and portable magnetometer based on the Overhauser effect. The complete ready to use set with all necessary accessories and battery fits in a carry-on size case and weighs only 7.5 kg. SmartMag can be used as an observatory magnetometer, base station, as part of a multi-sensor gradiometer, or even as a GNSS base and rover with centimeter accuracy in PPK mode. It is fully compatible with MaxiMag console and can be applied for any type of ground magnetic surveys.

Easy-to-use console
The console enables easy configuration of operating modes, visual control of measured values and viewing of stored data from the built-in microSD card. Downloading data is performed via USB to a PC or smartphone. It is also possible to broadcast data via RS-232 or CAN ports in real time mode. The console is equipped with an OLED display (-40 ÷ +60 °C), built-in multi-band GNSS receiver with RAW GNSS data collection, and backlit keypad.

Magnetometer for magnetic observatories
High sensitivity, sampling rate, and accuracy (less than 0.1 nT) makes SmartMag one of the best magnetometers for magnetic observatories. Real-time data broadcasting realized via CAN FD or RS-232 connection. With the optional CAN-Ethernet interface unit SmartMag can be connected directly to network. The digital CAN FD cable can be up to several kilometers long. The device is supplied with the SmartManager software that has all the necessary functionality to perform measurements in the INTERMAGNET network of magnetic observatories.

Magnetometer parts
The magnetometer package contains on the one hand a minimum number of unified parts to ease assembly and use, and on the other hand all the necessary components, so that you do not have to buy additional cables, a battery, or GNSS receiver without which you will not be able to work.

Every magnetometer we ship is ready to use in its basic configuration. Options add functionality, but are not required by most users for standard operating scenarios.

Power supply
SmartMag operates over 12 hours of continuous measurements at -30°C from the battery included. At 20°C, the operating time increases to 23 hours. Continuous power supply in long term monitoring mode can be provided with a car battery, an optional low-noise power converter from 110/220VAC to 12VDC, or a solar panel.

Included Li-ion battery has the full temperature range from -40 up to +60°C and MSDS certificate for any kind of transportation.

SmartMag does not contain built-in batteries, which complicate air transportation and sooner or later fail and require complex replacement.

Data format
User can create project folders that can be used to divide survey sites or data collection days. All measurements are saved in a TXT file in the project folder. The file from each magnetometer has a name containing the serial number of the console, the code of the measurement mode and the number of connected sensors. The files have a homogeneous structure, i.e. each measurement in the file is a line that contains all necessary information: UTC date and time, time zone, base name or line and station name, measured field, estimated error, sensor serial number, latitude and longitude in decimal degrees, altitude, UTM coordinates with automatic zone and hemisphere selection, horizontal and vertical accuracy. When working with a gradiometer, the line will contain measured field, estimated error, and sensor serial number for each of the connected sensors, and the file name will be different from the magnetometer mode, so the uniformity of the format will not be broken.

Even if there are many operators working on a survey site at the same time, you will always be able to identify which instrument was used for each single measurement in the database.

Multi-sensor gradiometer
SmartMag supports the ability to link through a CAN FD interface to create a synchronized distributed network of magnetometers. This unique feature allows flexible creating of multi-sensor gradiometer with the necessary measurement base. You can connect up to 30 SmartMag’s to the a MaxiMag console or build a multi-sensor gradiometer with an almost unlimited number of sensors using CAN-Ethernet interface unit.

Metrology and noise protection - a guarantee of high accuracy
Every SmartMag is metrologically tested. We control the standard deviation of random error (noise), absolute accuracy and orientation error.

The robust algorithms allow to perform measurements at high level of industrial noise, in a city environment, or right under high-voltage powerlines.

Reliability and warranty
Our R&D specialists have extensive experience in performing geophysical surveys. We are well aware that such equipment must be reliable, and the service must be fast and convenient. We give 3 years warranty on all our magnetometers, and our technical support will promptly answer any of your questions. Our Overhauser sensors have the longest in the World lifecycle of more than 10 years. If you are still working with outdated magnetometers - take advantage of our trade-in offer and protect your projects from potential problems.

Built-in multi-band GNSS receiver with centimeter level accuracy
Time and coordinates are provided by the built-in multi-band GNSS receiver with PPK feature, that allows to achieve a centimeter level accuracy. SmartMag also has GNSS receiver mode and can be used as a GNSS base, rover or tracker without mag sensor connected during any geophysical applications. Stored RAW GNSS data could be easely converted to RINEX format.

SmartMag supports NMEA-0183 protocol and can be connected to external navigation devices via RS-232.

Important "little things"
  • Carry-on size transportation case with whole equipment setup weight 7.5 kg only
  • Keyboard with backlight
  • More than 12 hours of continuous operation at -30°C and 23 hours at 20°C using the battery included
  • Power cable for standard lead-acid battery included
  • All rods are unified - a tripod or a long pole can be assembled
Operating modes:
  • Base station with continuous measurements
  • Search mode for UXO objects detection or evaluation of a base station location
  • GNSS receiver mode with ability to collect RAW GNSS data for a centimeter level accuracy with base or rover modes
Application area:
  • Base station for ground, drone, and airborne magnetic surveys
  • Magnetic observatory
  • Volcanology and earthquake prediction
  • Base station for ground and airborne surveys
  • Operation with MaxiMag as a part of gradiometer for any type of ground magnetic surveys
Capabilities of the CAN-Ethernet interface unit:
  • Real-time data broadcasting via Ethernet to a PC or Internet
  • Creating a synchronized distributed network of magnetometers
  • Power adapter 100-240 VAC
  • Backup power supply from external 12 V battery
Capabilities of the CAN-Ethernet interface module:
  • Real-time data acquisition and transferring via Ethernet to a PC or standard network equipment
  • Data backup
  • Power adapter 100-240 VAC to 12 VDC
  • Backup power supply from external 12 V battery
Delivery set:
  • SmartMag console with built-in multi-band GNSS receiver
  • Overhauser sensor on rod
  • External GNSS antenna on rod
  • Rope locking tripod hitch
  • Li-ion battery 14.8V/4Ah with charger
  • Non-magnetic tripod
  • Console bracket
  • AGM battery power cable
  • USB cable
  • Smart base station carry-on case
Optional:
  • CAN-Ethernet interface unit for connecting to PC/router and supplying 100-240 VACp
  • Additional Li-ion battery
  • RS-232 cable

Type

Overhauser magnetometer

Number of sensors

up to 30 with MaxiMag console
unlimited with optional CAN-Ethernet unit

Dynamic range

20 000 to 120 000 nT

Absolute accuracy

0.1 nT

Sensor sensitivity

0.021 nT/√Hz rms
0.012 nT/√Hz rms (on request)

Resolution

0.001 nT

Gradient tolerance

30 000 nT/m

Sample rates

0.2, 0.25, 0.5, 1 s and longer with 1 s step

Sensors stability

> 10 years

Additional sensors

IMU, compass, barometer

Interfaces

built-in: USB, RS-232, CAN FD.
optional: Ethernet (CAN-Ethernet interface unit required)

Maximum communication cable length

up to 6 km (CAN FD), up to 100 m (RS-232)

GNSS receiver

built-in and optional external

GNSS antenna

external

GNSS signals

GPS L1C/A and L2C; GLONASS L1OF and L2OF; Galileo E1B/C and E5b; BeiDou B1I and B2I; QZSS L1C/A, L1S and L2C. SBAS: WAAS, EGNOS, MSAS, GAGAN, SDCM.

Connectors

2 × CAN FD / RS232 / 12V, USB, external GNSS antenna, Overhauser sensor

Display

160 × 128, OLED

Keypad

6 buttons with backlight

Built-in memory

up to 32 Gb (microSD)

Power supply

11-16.8 VDC, Li-ion, LiFePo4 or lead-acid battery
100-240 VAC, optional power supply required

Operating temperature

–40 to +60 °C

Battery included

14.8 V, 4 A·h

Dimensions with connectors

Ø73×116 mm – sensor
125×100×35 mm – console

Item weight

0.45 kg – console

1 kg – sensor on rod

0.7 - Li-ion battery

Weight of a set includes console, sensor, battery, tripod, and GNSS antenna

3.1 kg

Delivery package size and weight

55.8 × 35.5 × 19 cm, 7.5 kg

Other
10 Mb
22.09.2023