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Summary of Contents for CMA Dishmachines SOUND SENSOR BT80i
- Page 1 OUND ENSOR BT80i ’ UIDE CENTRE FOR MICROCOMPUTER APPLICATIONS http://www.cma-science.nl...
- Page 2 Short description The Sound Sensor BT80i is a microphone followed by an internal amplifier. This microphone is mounted at one end of the box. The sensor measures variations in air pressure caused by a sound wave. Because of the high sensitivity, the sensor is very much suited to detect short pressure pulses. This offers the possibility to measure the speed of sound.
- Page 3 Suggested experiments The Sound sensor can be used in a variety of experiments with sound waves such as: measure sound waveforms (sound frequency and amplitude), • demonstrate beat patterns, • compare waveforms from various musical instruments, • measure the speed of sound through air and other materials, • display the frequency spectrum e.g. Fourier transform of a sound signal. • BT80i Sound Sensor User’s Guide | 3...
- Page 4 Technical Specifications Sensor kind Analog, generates an output voltage between -10 .. 10 V Note: When no sound is detected the output is 0 V. Measurement ranges Air pressure -45 .. 45 Pa (0.45 mbar ) Sound level 50 .. 110 dB Resolution using 22 mPa (0.22 µbar) 12 bit AD converter Frequency range 50 Hz - 12000 Hz Calibration function p (Pa) = 4.5 * V (V) Current requirement < 5 mA Connection IEEE1394 connector for BT-IEEE1394 sensor cable. Sensor cable not delivered with the sensor. Warranty: The Sound sensor BT80i is warranted to be free from defects in materials and workmanship for a period of 24 months from the date of purchase provided that it has been used under normal laboratory conditions. This warranty does not apply if the sensor has been damaged by accident or misuse.
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