Wireless Sound Sensor

Product Code: PS-3227

Description

The PS-3227 Wireless Sound Sensor is two sensors in one wireless package: a sound wave sensor capable of measuring changes in relative pressure level as a function of time and a sound level sensor with both dBA and dBC weighted scales.

Sound Wave Sensor: The Sound Wave Sensor measures relative changes in sound pressure level as sound waves are incident on the sensor. With graphs of sound wave measurements versus time, students can explore and analyze wave properties like wave shape, wave speed, amplitude, frequency, wavelength, and much more. Students can use this sensor to explore superposition of waves and beat frequencies, while also exploring standing wave harmonics, and the presence of overtones. Sound wave measurements work beautifully with the scope and FFT displays in both SPARKvue and Capstone, and the Wireless Sound Sensor is capable of measuring sound wave data wirelessly at sample rates up to 100 kHz.

Sound Level Sensor: The Sound Level Sensor gives you true sound level (intensity) measurements with both dBA and dBC scales. The dBC weighting scale measures the intensity of sounds in a wide range of frequencies within, and outside the frequency range of human hearing. The dBA weighting scale filters some of the sound frequencies from a sound source to more closely match the frequency response of the human ear. The dBA scale is commonly used in the workplace to determine the sound level an employee will experience in typical working conditions. Sound level and noise pollution are key measurements in environmental science. This new sensor gives you a wireless solution to measure sound level with all the capability of a sound level meter, but adds the flexibility of recording data continuously as a function of time.

Features

  • Wireless and portable
  • Wirelessly measures sound wave data at high sample rates (100 kHz)
  • Two sound sensors in one (sound wave and sound level)
  • High quality sensing element intended specifically for laboratory experiments
  • Connects seamlessly to Scope and FFT displays in both SPARKvue and PASCO Capstone software
  • Threaded 1/4-20 socket for easy mounting and alignment/positioning

Applications

  • Loudness, sound intensity, and the decibel scale
  • Sound wave properties and characteristics
  • Measure the speed of sound with an echo
  • Fourier transforms and sound wave analysis
  • Human ear response and frequency dependence
  • Observe and measure beat frequencies
  • Telephones and dial tones
  • Resonance and standing waves in a closed or open pipe

What’s Included

  • 1x USB charging cable
  • 1x Threaded handle for mounting the sensor to a ring stand

Specifications

Microphone Frequency Range 100 – 15,000 Hz
Sound Wave Maximum Sampling Rate 100 kHz
Sound Level Range 50 – 110 dB
Accuracy ±2 dB
Response A or C weighted

Battery & Logging

Stored Data Points Memory (Logging) 1
Battery – Connected (Data Collection Mode) 2 >10 hr, sampling continuously at 20 Hz
Battery – Logging (Data Logging Mode) 3 Yes
Battery Type Rechargeable LiPo

1 Minimum # of data points with all measurements enabled, actual results depend on enabled measurements.

2 Continuous use in a connected state until battery failure, actual results will depend on sample rate, active measurements, and battery condition.

3 Logging until battery failure, actual results will depend on sample rate, active measurements, and battery condition.

* Normal classroom use is the sensor in active use for 20min/lab for 120 lab periods/yr.

Software Required

This product requires PASCO software for data collection and analysis. We recommend the following option(s). For more information on which is right for your classroom, see our Software Comparison: SPARKvue vs. Capstone »

Connectivity Options

This product can connect directly to your computer or device with the following technologies. No Interface required. See the following guide for details regarding device compatibility: Wireless Bluetooth Product Compatibility »

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Wireless Sensor Charging Station PS-3599

Replacement Parts

Micro USB Cable PS-3584

Also Available

USB Bluetooth Adapter PS-3500

Experiment Library

Perform the following experiments and more with the Wireless Sound Sensor.
Visit PASCO’s Experiment Library to view more activities.

Support Documents