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What does a dynamometer measure and what types exist?

The dynamometer is one of the most widely used tools for measuring the weight of an object in a straightforward manner. Its mechanism is based on Hooke’s law, which states: “the elongation of an elastic body due to the effect of gravitational attraction is directly proportional to the applied force”.

There are two types of dynamometers on the market: the spring dynamometer and the digital dynamometer.

How does the spring dynamometer work?

The spring dynamometer operates based on the principles of mechanical physics underlying elastic materials, known as Hooke’s law. According to this law, the more the spring is stressed, the more it will deform, resulting in a specific measurement in kilograms, Newtons, or dynes. This measurement is indicated on a graduated scale by a pointer.

To ensure accurate measurement of an object’s weight, it is recommended to suspend the dynamometer from a rigid surface, such as the ceiling, ensuring it remains stationary and in a vertical position during the reading. The object whose weight is being measured is attached to the opposite free end of the dynamometer. As the spring relaxes, it determines the weight value.

How does the digital dynamometer work?

The digital dynamometer operates based on the same law of physics as the spring dynamometer, known as Hooke’s law, which calculates the intensity of the force. However, the digital dynamometer offers the advantage of displaying the measured value directly on an LCD or LED display. Additionally, certain models of dynamometers feature a USB output for exporting data to a computer or other digital device.

Which type of dynamometer to choose?

In conclusion, there are numerous models of dynamometers available, but not all are suitable for every application. Indeed, dynamometers find utility across various work environments, including large companies with expansive warehouses and production units, small-scale shops, medical clinics, physiotherapy clinics, and even pharmacies. Therefore, it is crucial to consider the type of force to be applied, the weight of the loads acting on the dynamometer components, and the available budget.

Below are the most popular dynamometer models in various sectors:

  • Precision digital dynamometer for industrial use. This portable, compact, and lightweight dynamometer is perfect for light loads. Equipped with an LCD display and wireless technology, it can be conveniently placed on bridge cranes and small cranes. While it retains the mechanism of a traditional spring dynamometer, its LCD display ensures immediate weight force readings.
  • Professional digital dynamometer for heavy loads. Typically multifunctional, this dynamometer features a 360° swivel hook and a sturdy die-cast aluminum structure, making it suitable for outdoor use. It also includes an LCD display for easy reading and wireless technology.
  • Manual spring dynamometer. Mainly used in rehabilitation centers, this dynamometer allows for the measurement of patients’ muscle strength.
  • Spring/digital dynamometer for suitcases/logistics. More precise than conventional scales, this dynamometer is commonly employed in airports or the logistics sector in general.
  • Compression dynamometer for resistance tests. This specialized application measures the tension of belts, harnesses, fishing lines, yarns, and similar materials.

In summary, the dynamometer proves to be an indispensable tool across various industries. On our website, you can explore a range of digital dynamometer models tailored to meet diverse needs. Contact us for detailed information on our products.