Calibrating the Goniometer (GNM-BTA) may not be necessary for some activities. If you are evaluating the range of motion of a joint, such as the knee or elbow, then the stored calibration should work well. For dynamic analysis of a joint you may want...
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If you are interested in measuring flexion and extension of a joint, you can zero the Goniometer (GNM-BTA) to report both positive and negative joint angles from the starting position of the subject.
Computer Users: Select Zero from the Experimen...
You can use Logger Pro to calculate cadence or step rate from the Goniometer (GNM-BTA).
You will need to create a calculated column in Logger Pro. Go to the Data drop down menu and select New Calculated Column. Give this new column a proper name, ...
Note: This information pertains to the Hand Dynamometer (HD-BTA).
Yes, you can reattach them yourself using an adhesive specifically made for rubber and plastic. One such adhesive we use that is readily available online and at some stores is 3M Scot...
All optical dissolved oxygen probes work on the same principle and all must have the sensing cap containing the luminophore replaced periodically due to a event known as photo-bleaching.
The Optical DO Probe and Go Direct Optical DO cap is warran...
Yes, we sell two PAR Sensors:
Go Direct® PAR (Photosynthetically Active Radiation) (GDX-PAR)
PAR Sensor (PAR-BTA)
Radiation that drives photosynthesis is called photosynthetically active radiation (PAR) and is defined as the total am...
Vernier PAR sensors are calibrated before shipping and should not need calibration. You can verify the calibration using the Clear Sky Calculator at:
www.clearskycalculator.com
The Clear Sky Calculator for Quantum Sensors reports the theoretical PPF...
For instructions on applying a correction factor to the PAR sensor readings, seeHow do I apply a Correction Factor to Vernier PAR sensors?
For most cases you will not need to use a correction factor when measuring Photosynthetic Photon Flux Densi...
The main part of the a Vernier PAR sensor is a water proof sensor head. The end of the cable is attached to a voltage amplifier located inside a black electronics box. The sensor head consists of an acrylic lens, filter, photodiode, and signal proces...
Yes, the sensor head of any Vernier PAR sensor is waterproof up to the plastic box that contains the electronics. This box is often called the "sensor box". This means that the PAR sensor head and cable can be submerged in water up to the sensor box....