Rotational speed is measured from leakage magnetic flux, vibration, sound, etc.
You can select the FFT calculation procedure that best suits the measurement target.
When measuring rotation, gears or slotted plates are typically attached to the rotating shaft, or reflective marks are applied, and the rotational pulses extracted from these are counted. However, for everyday items such as fans, compressors, and geared motors, the invisible structure of the rotating shaft and the environment in which they are integrated into machinery make measuring the rotational speed, the most basic quality, surprisingly difficult.
The newly developed advanced tachometer "FT-1500" inherits the advantages of the previous model, the FT-500, and is a groundbreaking tachometer that measures rotational speed from physical changes (leakage flux, vibration, sound, etc.) linked to rotation. The FT-1500 allows for more stable rotational measurement by enabling the selection of FFT calculation procedures according to the measurement target. It can measure the rotational speed of motors in air conditioners and compressors, as well as DC motors, and can also determine the direction of rotation. Furthermore, by combining it with an optical sensor conceived simultaneously with the development of the "FT-1500," the rotational speed of the thin rotating shafts of small (micro) motors and fan blades can be measured simply by shining light on them, without using reflective marks. In addition, it comes standard with an RS-232C interface and comparator output, and its DIN standard size (W 144 x H 72 mm) makes it ideal for inline integration.
