Vernier Software and Technology
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Capture Images with LabQuest 2

Capture Images with LabQuest 2

Did you know you can now use our digital microscopes and cameras with LabQuest 2? Our USB Digital Microscope and the Celestron Digital Microscope Imager, a drop-in digital microscope camera, work with computers or Chromebooks. They have been very popular with biology teachers. We know that many schools can’t have a computer at every microscope station, so we have added the ability to capture images from these cameras on LabQuest 2.

Starting with LabQuest App version 2.6, you are able to view and save images from both of these products. Simply connect the camera’s USB cable to LabQuest 2 and launch the Camera App. You can get very clear images that are easy to see and save. With the addition of LabQuest Viewer computer software, you can project the image for the entire class to see or monitor what your students are seeing at each lab station without leaving your desk. LabQuest Viewer for iPad is also available on the App Store.

We know that many biology teachers use images from microscopes and dissecting scopes in their teaching, and we hope this new feature in LabQuest 2 makes it even easier!

Xylem and phloem tissue in a root cross-section at 600× total magnification

Xylem and phloem tissue in a root cross-section at 600× total magnification

Tech Tip: Use Digital Filtering to Get Better EKGs

Graph of a smooth EKG trace
Using a digital filter to collect EKG data

EKG and EMG Traces Just Got Smoother

John Melville, our Biology Staff Scientist, has created a set of files for Logger Pro and LabQuest App that use digital filtering to improve EKG and EMG traces when using our EKG Sensor. Logger Pro 3.8.6 and LabQuest App 2.2 both offer calculated columns that can be used to filter sensor data. Digital filtering is also referred to as signal processing and is a common tool that many biomedical engineers use to improve signal quality of physiological data.

In Logger Pro, the new files that utilize digital filtering can be found in the EKG Sensor folder, which is located inside the Probes & Sensors folder. You will find a low-pass filter file for reducing distracting, rapid variations in signals, a high-pass filter file to reduce the effect of a varying baseline on signals, and a time-decay filter file that applies a simple adjustable time constant to the data, smoothing out rapid fluctuations while preserving long-term trends. The parameters of each filter can be adjusted using arrows in the parameter control, which is found just below the digital meter. These filter types can be used to improve the signal quality of EMGs and EKGs. An example EKG trace using the low-pass filter file is shown above. Similar files for use on LabQuest can be downloaded below.

Download similar files for use on LabQuest

For more information on how to apply or use digital filters in Logger Pro or LabQuest App, contact John Melville at You can also watch a video demonstration of how to use digital filtering.

Celebrating Brain Awareness Week (March 11-17th)

Ox Motor Neuron - John Melville
Ox Motor Neuron – Dr. John Melville

Now that neuroscience is a topic covered in one of the “big ideas” in the new AP Biology curriculum, many teachers have been asking how Vernier sensors can be used to teach concepts related to neuroscience.

For more information about Brain Awareness Week, visit the Society For Neuroscience website.

Free, downloadable neurology slide images are available to introduce Brain Awareness Week to your class. Thanks to Dr. John Melville for the images. Download the slides

Activities related to neuroscience are listed below:

Innovative Uses

STEM Extensions

Human Physiology with Vernier

Advanced Biology with Vernier

Biology with Vernier

Investigating Biology through Inquiry

Celebrate Darwin’s Birthday with Evolution Labs

Now that evolution is one of the “big ideas” in the new AP Biology curriculum, many teachers have been asking how our sensors can be used to teach concepts in evolution.

With this in mind, our Biology staff scientist, John Melville, developed several innovative ways to investigate evolution using Vernier products for Darwin’s birthday on February 12th.

Evolution-related Activities from Investigating Biology through Inquiry

Other Evolution-related Activities

Video Analysis and Muscle Physiology

Our biology staff scientist, John Melville, has been working with our new LabQuest Mini and has found a way to integrate video analysis into a simple muscle physiology experiment. EKG sensors are attached to the bicep and forearm muscles to record muscle activity. A Low-g Accelerometer is then attached to the wrist to measure joint angle. The video capture feature in Logger Pro is then used to synchronize video from a DV camera and the physiological data from the LabQuest Mini. The subject is filmed performing a simple bicep curl. Students can then clearly see that muscle activity precedes movement of the arm and that the forearm muscle activity precedes activation of the bicep.

Continue reading Video Analysis and Muscle Physiology

Use the SpectroVis Plus to Explore Fluorescence Spectroscopy

Fluorescent molecules are compounds that absorb light of one wavelength, then re-emit light at a longer wavelength. This emitted light can be quantified using fluorescence spectroscopy. Molecular and cellular biologists use fluorescent compounds to label proteins, gels, and even cellular organelles. In many ways, fluorescent compounds have revolutionized research in the life sciences.

Continue reading Use the SpectroVis Plus to Explore Fluorescence Spectroscopy

Record Electric Signals from an Electric Fish!

With its increased frequency response and external grounding pin, our new and improved Instrumentation Amplifier can now be used to record the electric signal from an electric fish with four easy steps.

Continue reading Record Electric Signals from an Electric Fish!

SpectroVis Plus

Vernier has updated its popular spectrometer with improved features:

  • Improved range: 380-950 nm (VIS-NIR)
  • 1 nm between reported values
  • Improved optical resolution (~2.5 nm)
  • New support for fluorescence

Available March 2010

Learn more about the SpectroVis Plus »

SpectroVis Plus

Tris-Compatible Flat pH Sensor

This double-junction pH sensor is compatible with Tris buffers and solutions containing proteins. The flat shape is also useful for food and soil pH measurements.

Available February 2010

Learn more about the Tris-Compatible Flat pH Sensor »

Tris-Compatible Flat pH Sensor

White Digital Bioimaging System

The White Digital Bioimaging System allows you to view non-fluorescent, visible stain gels, capture the image digitally on a computer and analyze the data using Logger Pro software, making gel analysis less tedious and produce better results.

Read more »

White Digital Bioimaging System
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