Place it tightly on the outside case of the running motor. By turning the top part of the Sirometer it emits a piece of wire. When the wire is in resonance with the vibrations of the machine it will show it by vibration. When the wire reaches the resonance point the RPM and frequency can be read.
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What is a Treysit Sirometer?
The Treysit sirometer is a device that measures the speed of a gasoline-powered or electric motor in revolutions per minute, as well as its frequency in cycles. It features a sturdy Bakelite plastic cap that holds two simple analog meters, one for RPM and one for frequency.
How does a vibration tachometer work?
A resonance, or vibrating-reed, tachometer uses a series of consecutively tuned reeds to determine engine speed by indicating the vibration frequency of the machine.
How do you read a Sirometer?
By turning the top part of the Sirometer it emits a piece of wire. When the wire is in resonance with the vibrations of the machine it will show it by vibration. When the wire reaches the resonance point the RPM and frequency can be read. The upper scale shows RPM and the lower scale shows cycles per second.
What is a Sirometer?
The sirometer is a resonating reed-style tachometer, a device first developed in the 1950s. It can be used on any engine that vibrates. It works by contact. Resonant vibration of the reed indicates when a given rpm has. been reached.
How does a tacho work?
An electronic tachometer uses a magnetic pickup positioned near a rotating engine part to produce electrical pulses at a frequency proportional to the engine speed. Circuitry in the meter converts the pulse frequency for the display of engine RPM using a digital readout.”
Where is a tachometer used?
A tachometer is an instrument which measures the rotation speed of a shaft or disk. It is designed to measure the revolutions per minute (RPM) of a moving object. Tachometers are typically used in motors and other machines and are widely found in the automotive and aviation industries.
