Metra Mess- und Frequenztechnik in Radebeul e.K.
Metra is an internationally established manufacturer of piezoelectric vibration sensors and related instruments with a broad range of products.
- 49-351-836 2191
- 49-351-836 2940
- info@mmf.de
- Meissner Str. 58
Radebeul, D-01445
Germany
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Industrial Accelerometers
Metra Mess- und Frequenztechnik in Radebeul e.K.
These piezoelectric vibration transducers have been designed for application under rough environmental conditions. They are dust and water protected. Their mounting base is insulated to avoid ground loops which may cause errors, particularly, close to big machinery.
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Building Vibration Software Module
Metra Mess- und Frequenztechnik in Radebeul e.K.
*Measurement and evaluation of vibrations in buildings to DIN 4150-3 for the determination of their effects on structures*Convenient user guidance requires only short training*Comparison with limiting values to DIN 4150-3*Simple generation of reports*Detection of the main frequency*Recording of vibration events and real-time signals*External Messengers*Offline measurement*Available as kit: VM-STRUC Kit with accelerometer KS823B
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Oscilloscope Software Module
Metra Mess- und Frequenztechnik in Radebeul e.K.
*Oscilloscope for transient vibration signals*Displays the time response of vibration acceleration and VM-SCOPE+ also for velocity and displacement*Suitable for shock and drop testing of packagings and other products *Memory for 110 s post-trigger and 1 s pre-trigger real time signal recording*Two measuring cursors*Export function for bitmap and text*Up to four signals per window*One VM-SCOPE license can be operated simultaneously up to four times with different settings *Measurement of decay time*Measurement of HIC (Head Injury Criterion)*VM-SCOPE may trigger the frequency analyzer module VM-FFT*External Messengers *Offline measurement
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Miniature Accelerometers
Metra Mess- und Frequenztechnik in Radebeul e.K.
These piezoelectric accelerometers are particularly suited for small and light test objects. Of particular advantage may also be their high resonant frequencies. Due to the piezoelectric principle with its wide dynamic range both high acceleration and lowest vibration can be measured with the same sensor.
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Force Transducers
Metra Mess- und Frequenztechnik in Radebeul e.K.
Piezoelectric force transducers are suited for the measurement of tensile and compression force.
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Meter Software Module
Metra Mess- und Frequenztechnik in Radebeul e.K.
*Level display as five digits number*Display selectable between acceleration, velocity and displacement*RMS, positive, negative and unsigned peak values, instantaneous value *Rotary speed measurement with Photoelectric Reflex Switch (only VM-METER+)*Main frequency (only VM-METER+)*Measurement at rotation speed or multiples (only VM-METER+)*Sound level meter (A and C weighted) and noise dose meter (only VM-METER+)*THD (distortion) measurement (only VM-METER+)*One VM-METER license can be operated simultaneously up to four times with different settings*Offline measurement
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PC Vibration Measuring System VibroMetra
Metra Mess- und Frequenztechnik in Radebeul e.K.
*The system was designed for typical tasks of vibration measurement. No ballast by unwanted functionality. *The system is modular making it upgradeable and particularly economic with fewer channels.*The necessary hardware is very compact which makes it particularly suited for mobile use.*Short installation and training time. After a few minutes you may start with the first measurement.*Off-line measurement: VibroMetra permanently saves the raw data stream of the sensor signal in the background. By this means you may analyze your measurement later again with other settings or other software instruments.*Data export as graphics, text or binary file
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Vibration Sensors
Metra Mess- und Frequenztechnik in Radebeul e.K.
Metra has been developing and manufacturing piezoelectric vibration sensors Since 1954. There are transducers for nearly every purpose. Our product range includes accelerometers with charge and IEPE compatible output.
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High Sensitivity Accelerometers
Metra Mess- und Frequenztechnik in Radebeul e.K.
The piezoelectric accelerometers on this page are intended for the measurement of lowest vibrations. Typical fields of application include the monitoring of buildings, dams, bridges, oil platforms and pipelines. These sensors are often called seismic accelerometers because they are used to monitor construction activity, volcanoes and earthquakes. Their high sensitivity is achieved -unlike other high sensitivity accelerometers- by the sensing element itself and not by internal amplification. From this results highest resolution and lowest noise.
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Building Vibration Measurement
Metra Mess- und Frequenztechnik in Radebeul e.K.
Contains a highly sensitive triaxial acceleration sensor, measurement, evaluation and recording electronics as well as an accumulator
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Universal Accelerometers
Metra Mess- und Frequenztechnik in Radebeul e.K.
There are models with charge output and with IEPE compatible voltage output. The transducers of KS series have a shear type sensing element making them less susceptible to thermal transients and base strain. The accelerometers of KD series have a compression type sensing element combining rugged design, precision and low cost.
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Human Vibration Measurement
Metra Mess- und Frequenztechnik in Radebeul e.K.
For hand-arm vibration measurement according to ISO5349 and ISO / TR 18570, whole-body vibration measurement according to ISO2631 and ship vibrations according to ISO 20283-5 Measurement ranges for acceleration, speed and distance for measuring machine vibrations
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Signal Conditioners
Metra Mess- und Frequenztechnik in Radebeul e.K.
Metra has been manufacturing amplifiers for piezoelectric transducers for over 50 years. We offer economic charge amplifiers and signal conditioners for IEPE transducers including microphones.
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FFT Analyzer Software Modules
Metra Mess- und Frequenztechnik in Radebeul e.K.
*Vibration analyzer for low and middle frequencies*Calculates the spectrum of vibration acceleration*VM-FFT+ also for velocity and displacement*RMS and peak spectrum*Envelope spectrum for roller bearing analysis with VM-FFT+*Limit curve with external alarms in VM-FFT+*Power spectral density (PSD) with VM-FFT+*Two measuring cursors for magnitudes and frequencies with snap-in function*Up to four signals per window*One VM-FFT license can be operated simultaneously up to four times with different settings*VM-SCOPE may trigger the frequency analyzer module VM-FFT*External messengers *Offline measurement
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Event Messengers
Metra Mess- und Frequenztechnik in Radebeul e.K.
When analyzing vibrations with VibroMetra, the measured data is displayed optically in the instruments first, or data is saved if required. Event messengers extend the instrument's possibilities of transferring data by additional outputs.
