CEBTP - The new pile integrity tester, the MIMP16 of CEBTP

The new pile integrity tester, the MIMP 16 of CEBTP

Measuring the length of a pile.
Measuring the stiffness of a pile.
Measuring the characteristic impedance of a pile.
Getting to know the shape of a pile (depending of settings).

The above is what the new pile integrity tester of CEBTP enables you to do very quickly and very easily.

The MIMP 16 also allows you to detect voids under concrete pavings, behind voussoirs or behind cemented facade panels.

The MIMP 16 is the most recently designed material in the MIMP series of pile integrity testers.

It appeals to the hammer-geophone technology to acquire data. This pulse method to control piles is an original technology developed by CEBTP, which is now used worldwide.

Operating this is very simple. It requires the pile to be fitted with any previous equipment.

The operator is to set a speed sensor (geophone) on the pile top. A good vibrational bond can be achieved by laying some silicone grease between the geophone and the foundation.

The operator is to arise a mechanical pulse by hitting the pile top with a hammer fitted with a force sensor (in the impedance setting)..

The force and speed signals are then recorded.

The MIMP 16 can immediately compute the pile length, its quasistatic stiffness and its characteristic impedance.

The results can be printed by connecting the MIMP 16 to a printer.

The data processing of course involves the pulse response by searching for the background echo, but it also involves the admittance curve, which is the speed to force ratio plotted versus the frequency (mobility).

The pile integrity tester of the MIMP 16 has been designed to be very handy to use. It only takes a while to learn how to get signals.

A more in-depth treatment, and above all an assistance to edit the report is made possible by using the very powerful data processing IMPRO2 software, under Windows 95 or 98.

The signals recorded on the MIMP 16 can indeed be quickly transferred to a P.C. or to a laptop computer by a cable supplied with the MIMP 16.

The pile test results will thus be stored, processed and printed very comfortably.

In addition to its remarkable performances, the MIMP 16 is small, light, battery operated and shock resistant.

It comes to you fitted with a shoulder strap allowing the operator to go from pile to pile on the site.

The operator therefore only handles the hammer and the geophone.

The MIMP 16 allows to test many piles on a site, which makes the tests highly cost effective.

The MIMP 16 is available in the reflection method version, as well as in the impedance or void detection method.

The main charcteristics of the MIMP 16 are :

Totally portable and autonomous.
Little cumbersome : 33 x 19 x 8 cm
Light : 3.2 kg.
Waterproof IP 64 box.
Large LCD 81/4 in screen, in colour or B&W.
Screen protected by an anti shock transparent pane.
Multiple power supplies :
- 1 - internal battery with an autonomy of 4 hours (with backlight on).
- 2 - AC 110 volt.
- 3 - AC 220 volt.
- 4 - DC 12 volt (car cigar lighter).
Quick charging in 7 hours on 110, 220 or 12 volt.
Internal storage capacity : 1000 acquisitions.
SENSOR geophone SM6 4.5 Hz type.
PCB hammer 086 C20 hammer (impedance setting).
Sensor connectors complying with the military norms.
Three sampling frequencies, that can be parametered : 25 kHz, 50 kHz
or 100 kHz.
Document printing.
Internal English software.
Document printing can be parametered either in English, in French or in Spanish (other alphabetic languages are can be made available, upon request). .
Pile measurement results are transferable to a table computer, for further processing and report editing with the IMPRO2 software.
This material complies with the specifications of the ASTM D5882-96 American norm dealing with pile testing.
This material complies with the NF P 94-160-2, NF P 94-160-4 French
norms dealing with pile testing.

The MIMP 16 can be delivered to you in three method settings and two screen settings :

Methods :
Option 1 : Pile control by the reflection method (echo method).
Option 2 : Pile control by the reflection method.
Pile control by the impedance method (instrumented hammer).
Option 3 : Pile control by the reflection method.
Pile control by the impedance method (instrumented hammer) .
Void detection under pavings, voussoirs, large pipes..

Screen :
Option 1 : black and white screen.
Option 2 : colour screen.

The MIMP 16 is delivered complete and ready for use with the following material :

- one MIMP 16 unit including the pile integrity measurement software for the réflexion method, the impedance method or the void detection method (according to the option).

- one instrumented PCB hammer (for the impedance and void detection methods).

- four hammer butt ends (two mounted on the hammer and two as spare parts).

- one calibrated SENSOR geophone.

- one shoulder strap.

- one battery charger and mains power supply.

- one 12 V car cigar lighter cable for charging or power supply.

- one data transfer cable for the IMPRO2 software.

- one tube of silicone grease for the geophone.

- one user's manual in French and English.

- one case to carry and protect the whole equipment.

You can obtain a complete set of documents about these new equipments
quickly by simply placing a request at :

The texts in the present document only have an information purpose, and neither their author nor CEBTP are committed by them. The texts, schemes and photographs represented in the present pages are an exclusive property of CEBTP and they cannot be reproduced under any form without a previous written authorization of CEBTP Copyright © 2001, CEBTP All rights reserved.