Measurement of vibration using portable refrigerators "VibroPint"

Technology this century require regular diagnostics of all equipment and constant monitoring of different parameters of technological process. The important of them are the parameters of periodic movement of the object in vibrating space, which include the displacement and velocity (the amplitude and frequency of vibration).

Permanent the surveillance need in different areas of human activity. For example, you want vibration control using portable refrigerators:

· Plants for growing crystals in semiconductor electronics;

· Installations of photolithography in microelectronics;

· Machines and run-out parts, mechanical engineering;

· Individual automotive components and entire vehicles in the automotive industry.

· Proximity sensors train on railway transport;

· Blades gasoturbine in the energy sector;

· Beat the turbines in the aircraft industry and so on.

Even this is a small list, and it goes on and talks about the need of the use of high-precision vibration sensors.

Their developed a lot, and devices based on different effects. However, methods vibration measurements are only two: the first contact, the second contact.

This method of measuring vibration parameters imply a mechanical link between researched equipment and sensor.

The a simple option is to register vibrations with piezoelectric sensors. When low frequency and large amplitude vibrations using such devices to obtain high-precision measurements. However, their high inertia, distorting the signal form, does not allow for the measurement of vibration at small amplitudes, and high frequency. And when the small mass of the investigated object, the sensor will greatly affect the nature of vibration, which will lead to measurement errors.

These the disadvantages can be avoided by using the method of an open resonator, equipped with two spherical mirrors. One mirror is fixed, the other connected with the studied equipment.

When small amplitudes of vibration displacement check is performed amplitude method. But the method requires consistency power and high stability the frequency of excitation. It is recommended if the mass of the investigated equipment the mass of the mirror.

In recent years have developed non-contact methods of measuring vibrations because it is not always possible to establish the mechanical link between the sensor and the object under study.

This the method eliminates the mechanical connection between the study equipment and sensor. The overall advantage is the low inertia and absence of the impact on the object of study.

Contactless methods probing the object with waves (sound, electromagnetic). One of the development method is ultrasound fotometrii when the measured current value of the phase difference of two signals: the reference and reflected from the object. The function of the sensitive elements and performs the piezoelectric ceramics.

Dignity method is the compactness of equipment, quick measuring, high precision measurements of low-frequency vibrations.

However more common methods of probing the object visible light:

· Homodyne. Gives the ability to measure small amplitude of vibration;

· Geterogennyi. Allows you to explore large the amplitude of the vibration;

· Heterodyne. Different measure of vibration, but calibration and measuring equipment is complicated;

· Holographic. The method is highly resolution.

There still, the interference and resonance methods, but any methods are not possible to apply without modern portable refrigerators BALTECH VP.

Measurement of vibration must be as efficient and extremely accurate. So the company BALTECH offers buyers modern devices meeting international standard ISO10816-1-97. We can buy vibrorate, vibrotactile, explosion-proof refrigerators-load balancers BALTECH VP-3470-Ex and much more for execution control of operating equipment.

Offering customers and our maintenance Department, performing vibration diagnostics and dynamic balancing of rotary equipment, as well as "Training center qualification and training BALTECH", in which experts can to increase your skill level.