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Analyzing Battery Life in a Hands-Free Remote Control - Part 3

ZPL™ offers a unique microphone system which is appropriate for use in portable devices, however the power usage can only be optimized if it is used alongside a complete system that can run in ultra-low power mode.

From Vesper Technologies, Inc. 2 Jan 2019

Design Differences Between Push-to-Talk and Hands-Free Remotes - Part 4

Push-to-talk (PTT) voice-operated systems require only one microphone to function as the user must press the button to use the system, meaning the remote will always be close to their mouth.

From Vesper Technologies, Inc. 3 Jan 2019

Testing Wake on Sound Microphone Frequencies - Part 5

Vesper has built data loggers for the VM1010 microphone for different noise thresholds (65 dB, 71 dB and 77 dB) with the aim of studying the frequency of wake commands in a living room environment.

From Vesper Technologies, Inc. 3 Jan 2019

Basing Glucose Sensors on Infrared Spectroscopy

Some non-invasive glucose monitoring devices are based on sensors using near-infrared, mid-infrared or Raman spectroscopy and photoacoustics.

By Benedette Cuffari 26 Feb 2019

Introducing Optical Gas Sensors on a Chip

This article discusses introducing optical gas sensors.

From Graphenea 25 Feb 2019

What are Semiconductor Sensors?

Most sensors operate using semiconductors and are therefore called semiconductor sensors.

By Dr. Liji Thomas 13 Feb 2019

Optical Surface Characterization for Quality Control in Metrology

The requirement to check fine tolerances in quality control is a challenge for metrology. In addition to being precise, the sensor can't overlook any relevant information, so the entire functional surface must be characterized.

From Polytec 31 Oct 2016

The Basic Principles of Vibrometry

If a wave is reflected by a moving object and detected by a measurement system (as is the case with the LDV), the wave’s measured frequency shift can be expressed as follows: fD = 2•v/λ

From Polytec 21 Nov 2016

CMOS Image Sensors in Biometrics

Image sensors, which are often used to track physiological biometrics, have been undergoing some changes. Recent advancements in the technology have led to the increased prevalence of CMOS imaging sensors.

3 Feb 2014