a frequency counter
It all depends on what you're measuring the frequency of. From what I have found, you need either a frequency counter, or if it's sound, a CRO
(cathode ray oscilloscope), but a high quality one is extremely expensive, or if you have an iPod touch/iPhone and headphones with a mic, just get an app for it.
Gladometer
No, because a trombone is around the same frequency of a trumpet.The tuba is (out of my musical Knowledge) the instrument with the lowest frequency
secondary instruments,as opposed to absolute instruments ,are direct reading type instruments.the value of an electrical quantity can be read directly from the deflection shown on the instruments.deflections on an un-calibrated secondary instrument are not a true measure of the electrical quantites.
timbre
The lowest frequency of a musical instrument are produced by 64' organ stops located at Atlantic City organ and also on Sydney City Hall Grand Organ. These stops produces incredible low frequencies in rang of 8 to even 4 Hz.
Instrument which measures d ability of sample to absorb or transmit radiations
A frequency meter is the instrument that is used to measure the amplitude of sound. It reads the energy from a sound wave.
An atomic clock - which measures the frequency with which atoms move in and out of excited states.
Radio telescopes. Pulsars radiate most strongly in the radio spectrum so that is the best frequency range to observe them.
The unit that measures wave frequency is hertz (Hz).
Voltage . . . DC voltmeterCurrent . . . DC ammeterThe "ohmmeter" is also fundamentally a DC ammeter at heart.Frequency . . . DC doesn't have frequency.
No, because a trombone is around the same frequency of a trumpet.The tuba is (out of my musical Knowledge) the instrument with the lowest frequency
This instrument is a balance.
An instrument that measures heat and cold is called a thermometer.
Frequency counter
A calorimeter measures heat. In contrast, a thermometer measures temperature.A thermometer bolometer - an instrument that measures heat radiation; extremely sensitive calorimeter - a measuring instrument that determines quantities of heatHeat is measured with a ThermometerThermometerThermometer or calorimeterThermometerthermometerHeat is measured with a thermometer.
An anemometer is the instrument that measures wind direction using a wind vane.
frequency