8210 Modal Sledge Hammer, 12 lb. Head, cable included

The heavy-duty impact hammers are designed to excite and measure impact forces on medium to very large structures. An accelerometer (or laser velocity transducer) is used to measure the response of the structure. By using an FFT analyzer, such as the PULSE™ system, the frequency response function and mode shapes of the test structure can then be derived.

Product Data

Uses

Impact-force measurements on medium to very large structures
Measurement of frequency response functions using impact excitation techniques
As part of a dynamic structural testing system for modal analysis and prediction of structural response

Features

Robust construction
1, 3 and 12 pound versions for a variety of structures
DeltaTron® (low-impedance) output
Four impact tips for controlling frequency response and impulse
Supplied in easily transportable carrying case
Type 8207: one-pound head for exciting medium size structures such as machinery and larger auto frames.
Type 8208: three-pound head for exciting large structures such as pipelines, storage tanks and concrete castings.
Type 8210: twelve-pound head for exciting very large structures such as buildings, bridges and ships.

Characteristics

The hammers have built-in electronics. The sensitivity is expressed in terms of voltage per unit force (mV/N or mV/lbf). All types feature a BNC connector at the bottom of the shaft. Each hammer is supplied with four interchangeable impact tips to control the amplitude and decay of the impact and frequency response. The hammers must never be used without an impact tip. The sensor housing is made of stainless steel and is permanently attached to the hammer.

Calibration

The hammers are supplied with individual calibrations of their sensitivity.

Versions

For a full Description and Specifications, see Product Data