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Room 1217, Building 2, Wanda Plaza, 928 Memorial Road, Shanghai
Shanghai Laorui Instrument Equipment Co., Ltd
Room 1217, Building 2, Wanda Plaza, 928 Memorial Road, Shanghai
Product Introduction
HDTEM-360 Transient Electromagnetic Instrument (Tunnel Advance Prediction)This product is developed based on seven inventions, including "Full Space Transient Electromagnetic Device and Measurement Method", "Low Noise Transient Electromagnetic Measurement Device with One Field Interference Self Elimination", "Transient Electromagnetic Low Mutual inductance Foldable Coil", "A Full Process Transient Electromagnetic Synchronous Sounding Device", "Transient Electromagnetic Measurement Device and Its Identification Method for Abnormal Object Orientation Recognition", "A Coil and Its Application Method for Transient Electromagnetic Exploration", and "A Remote Control System and Its Control Method for Geophysical Instruments Based on Mine Internet of Things Technology". As a new generation of intelligent geophysical equipment, it has Internet of Things access and cloud computing functions, and supports remote technical services.

Main functions:
Advanced detection of coal mine, highway, and railway tunnel excavation.
Advance prediction and forecasting of mining face.
Exploration of hidden water conducting structures on the roof, floor, and side walls of the roadway.
Evaluation of water rich properties of the roof and floor of the mining face.
Exploration of coal mine goaf.
Key Features:
The hardware configuration of the main control system and measurement control system is superior to similar products, with 7 national inventions;
The instrument is lightweight and easy to use, with operating software based on the Android platform and stronger human-computer interaction;
The collection software provides a "guided" operation mode and on-site mapping function;
Supporting the national invention of coils is beneficial for early signal measurement;
High signal measurement accuracy: using anti-interference front-end conditioning circuit, 24 bit high-speed ADC, time-domain and phase superposition technology, supporting multi-level programmable gain, can effectively suppress power frequency, low-frequency and high-frequency random interference, and can distinguish response signals below 1 μ V;
Multi channel full process measurement: supports multi-channel acquisition, with full time domain recording function for early and late signals, supports multi-component observation to meet different user needs;
Using the full process algorithm, reduce the detection blind spot from 25-30m to around 5-10m;
Equipped with IoT access and cloud computing capabilities, supporting remote technical services.
Technical parameters:
1. Host system
hardware platform |
Low power quad core processor |
software platform |
Embedded Android operating system |
communication interface |
RS485 serial communication, USB 2.0 Ethernet port, expandable WiFi interface |
display screen |
10.1-inch high-definition color IPS LCD screen (resolution 1280 * 800) |
interface |
Human computer interaction interface, touch screen+mechanical buttons |
storage capacity |
32GB |
working power supply |
Lithium battery pack, 12.6V/6Ah |
working hours |
≥8H |
2. Transmission reception system
firing voltage |
5V |
Emission current |
≤20A |
transmission frequency |
2.5-1000Hz (optional) |
Off time |
<0.8μs |
sampling frequency |
Up to 1250kHz (optional) |
Stacking times |
0, 16-9999 (optional) |
sampling method |
Full cycle sampling, intermittent period, and full cycle sampling |
Pre gain |
E0-E6, Overall/segmented gain, manual placement/customization method |
dynamic range |
258dB |
Distinguish voltage |
0.6nV |
Number of channels |
Current channel, 1-3 voltage channels (expandable) |
working power supply |
Lithium battery pack 16.8V/5 ampere hours |
Excitation waveform |
Bipolar square wave |
A |
24bit |
Number of measurement channels |
40-360 (optional) |
wave filter |
5-125kHz low-pass digital filter (optional) |
delay time |
2ms-2ms (adjustable) |
working hours |
≥8H |
3. Working environment
Working temperature: -10 ℃ -50 ℃
Working environment: Used in highways, railways, and non coal mine tunnels
Product advantages:
The hardware configuration of the main control system and measurement control system is superior (or comparable) to similar products;
The operating software is based on the Android platform, featuring a high-definition color touch screen, mechanical assistance buttons, and system software
Humanized design ensures more convenient human-computer interaction and easy to learn instrument operation.
The collection software provides a "guided" operation mode and on-site mapping function;
Matching coils facilitate early signal measurement
By utilizing the full process algorithm, it is possible to effectively reduce detection blind spots
Main functional features of the collection software:
Support touch screen and button operation, with good human-computer interaction mode;
Support "creating or opening projects", setting measurement parameters, data collection, display, storage, calculation, management, etc;
Support battery level and system time display;
Support Chinese, English, and numerical input;
Support system detection, communication, coil connection detection, etc; (★ Highlights)
Provide two operation modes: "advanced detection of tunnels" and "custom detection"; (★ Highlights)
Provide a user-friendly "guided" operation method; (★ Highlights)
Support on-site one click mapping and comparison of detection results before and after; (★ Highlights)
HDTEM-360 Transient Electromagnetic Instrument (Tunnel Advance Prediction)
Application case:

Order number: LR-100963