Impulse hammers with IEPE output, 100 g / 9722A
Dynamic quartz sensor elements contained within instrumented hammers of family Type 9722A are used to deliver a measurable force impulse (amplitude and frequency content) to excite a mechanical structure under test.
- Low-impedance, voltage mode
- Quartz sensing element guarantees long-term stability
- Accessories for various applications
- Sensor cable integrated into hammer handle
- Conforming to CE
The dynamic response of a mechanical structure, while either in a development phase or an actual use environment, can readily be determined by impulse force testing. Using a FFT analyzer, the transfer function of the structure can be determined from a force pulse generated by the impact of a hammer and the response signal measured with an accelerometer. The impulse force test method yields extensive information about the frequency and attenuation behavior of the system under test. The stainless steel head of an impulse force hammer is equipped with a quartz, low impedance force sensor which accepts impact tips varying in hardness. A selection of steel, plastic, PVC, and rubber tips, along with an extender mass, allow the hammer to be tailored to impart to the test structure a desired spectrum of frequencies. Shear quartz accelerometers operating in a voltage mode and featuring insensitivity to base strain, thermal transients, and transverse motion are available to measure the response of the test specimens, ranging from thin-walled structures to steel bridge members.
Impulse Force Hammers