Microphone (MCA-BTA)
Specifications and User Guide

– Primary Test: The easiest sound source to use with the Microphone is a tuning fork, but you may want to investigate a human voice or a whistle, electronic keyboards, and other musical instruments. Make sure the sound level is in the correct range to produce good wave patterns. If the sound is too loud, the wave pattern will be clipped at the top or bottom. Move the microphone further from the sound source, or turn down the volume of the sound.

An inexpensive keyboard set to the flute sound, without vibrato, is the best source; you can easily do both beats and pure tones of varying pitch.

What are the units (of pressure) for the microphone?
What is the best procedure to get a clean sine wave when using a tuning fork with the microphone?
What is the best sound to use for the speed of sound experiment?
Can I use Logger Pro as an oscilloscope?

Is there a problem using an MPLI microphone with LabPro?

How do I use LabQuest App to measure the frequency of sounds?
LabQuest (original) and LabQuest Mini: Readings from my Vernier Microphone are very noisy.
Readings from my Vernier Microphone are very noisy on LabQuest 2 or LabQuest 3.

Why does the speed of sound experiment in Physics with Computers not work in Logger Pro 3?

Can I submerge the Vernier Microphone in order to measure the speed of sound in water?

On which line does the Microphone output its signal?
What is the difference between the microphone built into the LabQuest and the MCA-BTA microphone?

– New Order Code: MCA-BTA
– Old Order Code: MCA-ULI (ULI only)
– Frequency range: approximately 100 Hz to 15 kHz. The maximum data-collection rate of the interface affects the maximum frequency you can effectively sample. With the LabPro or CBL 2, the maximum sound source is 5,000 Hz. With the CBL or ULI, the maximum sound source is 1,000 Hz.

– Calibrate? No. The sensor is set to the stored calibration before shipping.

Sound Level Sensor (SLS-BTA)
Sound Level Meter (SLM-BTA, discontinued)