CHUM

Overview
 

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. [ overview of this test method ]  [ How to test a pile using CSL testing /  the crosshole ultrasonic method? ]

Additional methods supported by the CHUM are Single Hole Ultra sonic Testing (SSL/SHUT) and Tomography (two- and three-dimensional).

The CHUM is fully compliant to ASTM D6760-16, AFNOR NF P 94-160-1 and additional standards

The CHUM system
Crosshole Sonic Tester

What makes CHUM crosshole 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.
     

"Very, very easy to use..." - Barcelona, Spain
 

• 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 It will connect to future computers (such as Origami) while embedded systems will quickly become outdated.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

  • 3 years warranty!

  • Rugged connectors, PU cables, and details.
     

"The CHUM operated perfectly in -17°c Moskow
 

• Devoted service

  • Free software support and updates (included)

  • Analysis, interpretation, and reporting assistance (included). We will do/review your first reports to make sure they are up to the highest standards.
     

• Performance

  • Up to 150m (450') deep (deeper optional)

  • A clean signal on 3m and more on solid concrete

  • The cleanest signal in the industry
     

• High productivity

  • One experienced person tests about 700m of sections per hour!

  • 40 samples/sec: test as fast as 2m/sec !

  • Fully automated reports in MSWord format

  • The whole system fits into carry-on luggage. (50m cable drums)
     

"We just tested 4000m of CSL sections in one day!" - Middle east
 

• Unlimited software licenses

  • No plugs, no registration, no need to type in long product ID, no "software transfer fees".

  • Install the fully functional software as many times as you need.

3D tomography output

Why is CHUM using my computer?

​

Unlike other systems, CHUM connects to any PC using the USB port, to form a powerful CSL testing system, based on ASTM D6760-16.

Advantages of this modularity concept:

• Save money and start testing with your current laptop. Once the market picks up - get a dedicated tablet PC.

How can I take a deeper look at CHUM?

​

1. Look at actual case histories with CHUM

2. Look at snapshots from CHUM's software

3. View a sample report

4. Read the technical specifications (pdf)

5. View our ASTM D6760 CSL testing, compliance statement

6. Get the evaluation version of CHUM's software.

7. Learn How to perform a CHUM test 

How can I find out even more?

1. Fill and send the information request form

2. Contact our Resellers

Typical report output

On site