Enviormental Test Lab

To ensure that both prototype and manufactured systems and their various sub-components are able to perform reliably and accurately under all operating conditions they must undergo rigorous environmental testing. 

Temperature and Humidity

The environmental lab at BTP Systems offers reliability, qualification, and Environmental Stress Screening testing for thermal, humidity, shock, and vibration.

The temperature and humidity testing are accomplished via the use of two independent test chambers, each with a total capacity of at least 31 cubic feet.  These chambers are the Thermotron F-42-CHV-25-25 temperature chamber with a temperature range of -73°C to +177°C and inner dimensions of 54” width x 36” height x 38” depth.  The second chamber is a Thermotron SM-32C temperature and humidity chamber with a temperature range from -70°C to +180°C and a humidity range from 10% to 98% RH humidity.  This chamber has the following dimensions: 38" width x 38" height x 38" depth.  Both chambers have Thermotron programmer/controllers that allow for a multitude of temperature and humidity profiles to be run indefinitely. 

These units not only provide thermal cycling over various levels of humidity, they also allow for actual testing to be performed at specified temperature and humidity levels as there are access ports on either side of the chamber for necessary cabling to the component inside. These chambers also offer windows to view the device under test while temperature cycling is being performed. 

                            

Shock and Vibration

Two more critical components of environmental testing are vibration and shock testing.  These are both performed on the BTP Systems TA250-206 Vibration Testing System.  This test system has a shaker stroke of 1”, and can generate a continuous Sine force of 1,200 lbs peak, and a continuous Rand force of 600 lbs RMS.  The Maximum Free table acceleration is 60g.  The systems also has an advanced VR9500 Control System with the Vibration View software installed allowing for precise control of various shock and vibration profiles to be run. 

 

A typical vibration spectrum plot is shown below.