ACCELEROMETER MOUNTINGS PDF

An accelerometer is a sensor that senses the dynamic motion of the surface that it is attached to by producing an electrical output which is. The mounting of a vibration sensor (accelerometer) directly impacts on its performance. Incorrect mounting may give readings that relate not only to a change in. Accelerometer Mounting Techniques are described as far as Mounting Surface Preparation, Installation and a variety of methods.

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Accelerometer Mounting

To detect any faults in machine components, vibration sensors should be mounted in locations that ensure horizontal, vertical and axial movement are measured effectively: Ground Isolated accelerometers have the electrical components isolated from the case and are much less susceptible to ground induced noise. To montings a higher degree of surface contact, apply a thin layer of silicone grease between the accelerometer base and the mounting surface.

Triaxial mounting cubes M3 M5 Accelegometer M10 For triaxial measurements with three uniaxial accelerometers Handle adapter For the attachment of accelerometers with M3 thread on curved surfaces Accelerometer probe M5 For estimating and trending measurements above 5 Hz and below Hz. Two-part epoxies offer stiffness, which maintains high-frequency response and a permanent mount. Any soft material will create a filtering effect that will dampen high frequency transmissibility.

The must be no gap under the sensor. ACC shown is a high quality low cost accelerometer for general purpose applications. How to choose an accelerometer?

Typically the range is to C. Get updates on exclusive content.

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Accelerometer Mounting

When using screw mounting, make sure that the screw is not longer than the threaded hole. Does the area require Intrinsically safe or explosion proof acceelrometer Description 0 March 10, After the debonding agent has set, an ordinary open-end wrench can be nountings for removal for accelerometers with a hex base or square base. For triaxial measurements with three uniaxial accelerometers.

An accelerometer is a device that measures the vibration, or acceleration of motion of a structure.

Types of Accelerometer Mounting

These adhesives set quickly and only need a small amount to create a strong bond. The type of adhesive recommended depends on the application. Cable clamps M5 M3. Accelerometer Mounting Choosing the optimum mounting arrangement will significantly improve the accuracy. Flat acceleromeeter base Model A Wedged, dual rail magnetic bases are typically used for installations on curved surfaces such as motor and compressor housings and adcelerometer.

Soften the wax with the fingers. Magnetic mounting bases offer a convenient and temporary method for attaching to magnetic surfaces.

With this, it is important to mount the accelerometer properly and ensure it is tightly coupled to the test surface to duplicate the motion from the test object to the accelerometer without discrepancies. If not available, weld or epoxy a steel mounting pad to the test surface.

The addition of any mass to the accelerometer such as an adhesive or magnetic mounting base lowers the resonant frequency of acceleromter sensing system and may affect the accuracy and limits of the accelerometer usable frequency range. Adhesives mountingss as epoxy or cyanoacrylate have proven to provide satisfactory bonding for most applications. However, dual-rail magnets can significantly decrease the operational frequency range of an accelerometer.

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Are there electromagnetic fields? Any stud bottoming or interference between the accelerometer base and the structure inhibits acceletometer transmission and affects measurement accuracy. Is there a high level of electrical noise in the area? Figure 4 shows an example of an accelerometer mounted to a test structure with an adhesive mounting base.

The Sensitivity of the accelerometer should produce an electrical output compatible with existing instrumentation. Cable clamps M5 M3 Avoid introduction of force via the cable into the transducer. Since the charge is proportional to the force, and the mass is a constant, then the charge is also proportional to the acceleration.

Guidelines for Mounting Test Accelerometers

For quick mounting of acceleromeger sensors at room temperature and low acceleration. Temperature Range is limited by the electronic micro circuit that converts the charge to a low impedance output.

For horizontal measurement, vibration sensors should be mounted on the motor bearings and pump bearings. Ferromagnetic object with smooth and flat surface required.

Approximate frequency ranges of mounting techniques. Using separate adhesive mounting bases is recommended to prevent the acceldrometer from damaging the accelerometer base or clogging the mounting threads. Install the accelerometer making certain that the stud does not bottom out in the mounting surface or the accelerometer base.

It is typically governed by the mechanical resonance of the accelerometer.

Small High-temperature Clip, insulated set of 5.