Cross Hole Ultrasonic Monitor

Description

The CHUM (Cross Hole Ultrasonic Monitor) uses the Crosshole Sonic Logging, CSL testing method to perform high-resolution quality control of deep foundations.

The system uses an ultrasonic wave sent from a transmitter to a receiver pulled through water-filled access tubes embedded in the concrete. The measured arrival time and energy are strongly dependent on concrete quality.

Applications

For testing pile integrity using the CSL method, of medium to large size piles, with supporting access tubes.

What makes CHUM cross-hole logger, the fastest CSL testing equipment?

  • Easy to use

– Usually, no training is needed, and the system can be self-taught in hours. (No expensive training days)

– Supports AGC (Automatic Gain Control) for simple, fast, and accurate performance in dynamic conditions.

  • Tomography

– 2D tomography (included).

– 3D tomography provided as a service

– Three alternative tomography methods: Fuzzy logic, Parametric and 3D

– In real-time tomography: the shape of the defects forms as the probes are pulled

  • Modular design

– CHUM connects to any PC via the standard USB port. It will connect to future computers (such as Origami) while embedded systems will quickly become outdated.

  • Reliable

– 100% QA tests at 16-atmosphere pressure, vibration, and extreme temperature

– The CHUM case can tolerate drops and shocks

– Rugged connectors, PU cables, and details.

Spesification

Physical Housing: Rugged, Environment-proof, water-resistant housing.

Dimentions: 430mmL x 325mmW x 105mmH (instrument only)

Weight:

3.8 kg (instrument only)

5.0 kg (instrument with typical tablet)

16.0kg (Typical shipping)

Temperature range:

-20°C to +55°C (Operating)

-40°C to +80°C (Storage)

Power Internal:

Rechargeable Lithium-Ion battery 11.1V 4.4Ah (two days of typical use)

External:

100-240V AC operation/charging

Standards ASTM D6760 –16

Meets or exceeds.

Technical Transducers

Dual-mode Transceivers, 50kHz nominal, 16bar pressure-tested housing, 25mm diameter

Cables

Heavy-duty polyurethane

Sample rate

500kHz (2μS resolution)

Gain

8-level auto gain control (AGC

Depth meters

Two 24-bit counters. <0.1% error

 

Performance Pile lengths

1m to 150m

Tube spacing

Up to 5m in good concrete

Productivity

Up to 3000m/Day by a single operator

Storage

Unlimited

 

Requirements Computer (Minimum)

Windows XP/Win7/Win10/Win11.

800×600 resolution or higher

Output Reporting

Arrival time, energy and wave speed curves,

“waterfall” presentation, fuzzy-logic and 3D

tomography

Language

Multi-lingual user-interface and reporting

 

Options Cable reels

50m, 100m, 150m, and custom lengths

Software

3DT – Three-dimensional Tomography (Also provided as an email service)

Miscellaneous

12V DC car battery power adapter

 

 

Features

Reliable
• 100% QA tests at 16-atmosphere pressure, vibration, and extreme temperature.
• The CHUM case can tolerate drops and shocks.
• 3 years warranty!
• Rugged connectors, cables & sensors
• 10 years of free software upgrade

Easy to Use
• Usually, no training is needed, and the system can be self-taught in hours. (No expensive training days)
• Supports AGC (Automatic Gain Control) for simple, fast, and accurate performance in dynamic conditions.

Top Performance
• Up to 150m (450′) deep. (Deeper optional)
• A clean signal on 3m and more on solid concrete.
• Highest SNR. Delivers the cleanest signal in the industry.
• Productivity – 4 tubes X 25m piles – 8 such piles tested in 2 hours!

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