High-speed rotational speed measurement is achieved through a non-contact, high-speed rotation detector and a high-sensitivity amplifier.
Wide range from low speed (100 r/min) to high speed (999,990 r/min)
Compact, lightweight body and large, easy-to-read LCD display
Analog (switchable with monitor output) and pulse output are standard features.
Features include a maximum/minimum value hold function and a memory function for convenient confirmation of measurement results (up to 20 entries can be stored).
High-speed rotational measurement exceeding 100,000 rpm is needed not only in dental rotating bodies and spindles of false twisting machines in textile machinery, but also in a wider range of industrial fields due to the increasing speed of cutting drills/end mills in machine tools and the increased rotational speed of motors themselves.
Conventional methods for measuring rotational speed include attaching detection gears or rotary encoders to the rotating shaft. However, detecting rotational speed using these methods becomes extremely difficult in the high-speed range exceeding 100,000 rpm. Furthermore, photoelectric sensors also have practical limitations in high-speed measurement, such as the reflective stickers attached to the rotating body easily peeling off at high speeds. The newly announced HR-6800 digital handy tachometer (high-speed type) uses an electromagnetic sensor in its detection unit. By detecting the shape (convex and concave) of drill bits, and magnetizing general rotating machinery, it can measure rotational speeds up to 999,990 r/min non-contact.
