We are happy to present a new generation of electromagnetic receivers - MARY Smart. The novel device combines in itself portability, innovational approaches and multifunctionality, typical to all instrumentation of the MARY series.
Short description and field of use
MARY Smart is a single-channel EM receiver with 24-bit ADC and low noise level (<1 µV), operated from a smartphone.
MARY Smart is intended for being used in mineral exploration; engineering, ecological, geological and other applications. It supports the following EM prospecting methods:
Resistivity & IP sounding
Vertical electrical sounding (VES), dipole-dipole, and other classic sounding methods with 4-electrode (AMNB) or 3-electrode (AMN, MNB) arrays. Works in frequency domain. Could be performed along with induced polarization (IP) measurements expressed in terms of differential phase parameter (DPP, °) values.
Resistivity & IP profiling
Classic 4-electrode (AMNB, gradient) array electrical resistivity profiling method. Works both in frequency and time domains. Could be performed along with induced polarization (IP) measurements expressed in terms of differential phase parameter (DPP, °) or chargeability (%) values.
Controlled-source (inductive) electromagnetic sounding method with amplitude and differential phase measurements of either electric or magnetic field components. Works in frequency domain.
Classic self-potential (SP) method, SP gradient method, ground currents measurement, tracing power lines and buried pipes using power-line frequency (50/60 Hz), etc.
Multifunctional receiver MARY Smart could be operated with a help of any modern smartphone or tablet PC with OS Android 7.0 or newer.
Handling EM receiver through a smartphone rises its functionality and operational comfort of EM prospecting process to essentially new level.
MARY Smart software supports interactive visualization of raw profiling and sounding data, displays maps and pseudo cross-sections of the acquired data, and allows trying simplistic inversion schemes right in the field.
Download MARY Smart software
MARY Smart operation software for Android platform could be freely downloaded through the Google Play service
Key features of MARY Smart
Supported methods: Controlled-source EM, Vertical electric soundings and resistivity profiling (with or without induced polarization measurements); tracing buried pipes and power lines, self-potential and ground currents measurement.
Induced polarization measurements could be performed both in frequency and time domains, and represented as differential phase parameter (DPP) or percent frequency effect (PFE) values vs. frequency, as well as chargeability values vs. decay time.
MARY Smart operation could be controlled with the help of any smartphone or tablet PC with OS Android 7.0 or newer.
Connection with a smartphone or tablet PC is established via Wi-Fi network. Implementation of smart working regimes for the Wi-Fi transmitter allows reducing power consumption and discharging rate of MARY Smart battery.
Light weight (about 400 g) and small size (135х110х35 mm) make the field work process with MARY Smart easy and comfortable.
Built-in Li-ion battery 3,7 V, 3,4 А·h allows working for up to 10 hours without using external batteries. Quick charge from both 12 V power source or USB.
Sampling frequencies, kHz; 10, 5, 2.5, 1.25<br>8, 4, 2, 1
ADC; 24 bit
Input signal type;Resistivity and IP: squarewave signal (100% or 50% duty cycles)<br>Controlled-source EM: squarewave signal (100% duty cycle) <br>Self-potential and ground currents: natural EM field<br>Tracing buried pipes and power lines: 50, 60 Hz
Operating frequency band;DC to 2500 Hz
Maximum input signal voltage; Gain х1: ± 3 V<br>Gain х8: ± 0.375 V
Direct voltage compensation;± 0.380 V
Internal noise (Gain x8, 10 kHz);< 1 µV [RMS]
Input impedance (DC);> 10 MOhm
Power consumption;< 0,9 W
Internal power supply;Li-ion battery 3,7 V, 3,4 А·h.
Data transfer interface;Wi-Fi
Calibrating frequencies, Hz;625, 156.25, 39.06, 4.88<br>500, 125, 31.25, 3.906
Data correction for poorly grounded receiving dipole (MN);yes
Measurement of the MN grounding resistance;yes
Operating temperature range, standard;-20…+50 °C
Operating temperature range, optional;-35…+50 °C
IP enclosure rating;IP65
for powering and recharging the receiver and smartphone
Complete with a rugged smartphone
Special discount for schools and academic institutions - 15%
All rights for the trade marks MARY, MARY-24, MARY Pro and MARY Smart belong to Nord-West Ltd. All questions regarding purchase and technical support of the MARY Smart products should be sent to firstname.lastname@example.org