Tachometer
Tachometers accurately measure the rotational speed and velocity of rotating or moving components. They are used in laboratories to monitor devices such as centrifuges, pumps, or motors.
Tachometer
Tachometers accurately measure the rotational speed and velocity of rotating or moving components. They are used in laboratories to monitor devices such as centrifuges, pumps, or motors.
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Guide and selection support
Tachometers are used in laboratories to precisely measure the rotational speed or movement velocity of rotating and moving parts. Typical areas of application include centrifuges, pumps, rollers, or motors. The choice of tachometer depends on the measurement task: Non-contact models use reflective markers and light beams to measure speed, while contact tachometers use a measurement wheel for direct speed acquisition. Important criteria are measurement accuracy, measuring range, and application type. LabFinder provides a clear overview of various tachometers, supports product selection with well-founded descriptions, and helps you navigate the analytical measuring device portfolio.
Applications and Benefits
Tachometers are used to measure and display the rotational speed or velocity of rotating or moving parts in laboratory environments. They monitor devices such as centrifuges, pumps, rollers, shafts, gearboxes, and motors. This enables the detection of operating conditions, monitoring of process parameters, and optimization of workflows.
Selection Criteria
Choosing a tachometer depends on the type of surface to be measured, the required measuring range, and the desired measurement accuracy. Non-contact tachometers, which use reflective markers, are preferred for sensitive or hard-to-access surfaces. Contact tachometers with a measuring wheel or tip are particularly suitable for smooth, accessible surfaces. Additional factors include size, handling, and, if necessary, the application of reflective markers.
Types and Measurement Principles
There are fundamentally two measurement principles: Non-contact tachometers use a light beam directed at a reflective marker on the rotating surface to count revolutions. Contact tachometers measure rotational speed mechanically via a wheel or tip in direct contact with the surface. Both types have specific advantages based on the application.
Calibration and Maintenance
Tachometers should be calibrated regularly to ensure measuring accuracy and reliability. For non-contact devices, it is important to keep reflective markers in perfect condition. Contact tachometers require occasional inspection of the measuring tip or wheel for wear. Maintenance intervals depend on manufacturer specifications and usage intensity.
Limitations of Application
Tachometers are dedicated to measuring only the rotational speeds or velocities of moving parts and are not suitable for measuring torque or other physical parameters. Irregularly shaped or very rough surfaces can complicate measurements. Non-contact tachometers require a reflective marker and may be less reliable on heavily soiled surfaces.
Search Terms and Related Terms
Synonyms and keywords include tachometer, speedometer, revolution counter, rotational speed meter, non-contact tachometer, contactless tachometer, rotation logger, rotation tachometer, speed indicator, and speedometer. Also relevant are terms such as rotational speed, velocity, measuring device, centrifuge, pump, reflective marker, non-contact, contact measurement, light beam, and measuring wheel.
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Frequently asked questions
How does a tachometer measure rotational speed?
A tachometer measures rotational speed either non-contact by using a light beam to detect reflective markers on the rotating surface, or by direct contact with a measuring wheel that mechanically records the revolutions.
What types of tachometers are used in laboratories?
In laboratories, mainly non-contact tachometers using reflective markers and contact tachometers that measure directly on the surface with a measuring wheel or tip are used.
What should be considered when selecting a tachometer?
Key factors include the surface and accessibility of the rotating parts, the required measuring range, and the preference for non-contact or contact measurement.
How often should tachometers be calibrated?
Calibration should be performed according to usage and manufacturer guidelines to ensure lasting measurement accuracy. Regular checks are recommended, especially with intensive use.
What are the limitations of tachometers?
Tachometers are suitable only for measuring the rotational speed and velocity of rotating or moving parts, not for other quantities. Issues may arise with irregular surfaces or dirty reflective markers.
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