Sentek Dynamics’ THV Series environmental test systems offer a turn-key solution for product development and reliability improvement.

This combined testing method, also known as The Department of Defense’s AGREE (Advisor Group on Reliability of Electronic Equipment) method of testing, combines three testing environments (temperature, humidity and vibration) in one chamber. The Spider-100 controller by Crystal Instruments is standard with all THV Series environmental test chambers and is specifically designed for precise temperature/humidity and vibration control. Based on the proven Crystal Instruments’ Spider vibration controller, the Spider-100 precisely controls all aspects of a combined temperature/humidity and vibration test regime.

THV Environmental Test System

Spider-100 Diagram (Click to enlarge.)

Sentek Dynamics’ THV Series is comprised of eight test chambers with volumes ranging from 600 to 12,000 L, two temperature ranges (-45 to +80ᴼC and -70 to +150ᴼC) and temperature change (ramp) rates of 5, 10 and 15ᴼC/min. Temperature only and temperature/humidity configurations are available. The THV Series provides a quality, complete and integrated environmental test system to meet ever-changing reliability, qualification and ESS (Environmental Stress Screening) test requirements for a wide-range of industries including aerospace, automotive, electronics and medical.

The THV Series environmental test chambers are designed to work with Sentek Dynamics’ air and water-cooled ED (electrodynamic) shakers in vertical only, mono-base and multi-axis configurations, and can accommodate other manufacturer’s shakers using one of the following interfaces:

The environmental chamber and vibration shaker interface is established by direct connection with the armature, with the use of a shaft or a plug between the chamber floor and the armature, and by interaction between a head expander with the chamber.

Model Selection
The following table identifies all possible configurations of chamber sizes (internal chamber volume), maximum force shaker model and maximum slip table size. The maximum force shaker model and slip table size represent the largest/highest capacity vibration system that can be combined with the listed chamber model. For more details on ED shaker specifications in general and/or the process of choosing an adequate THV chamber for specific needs, please contact Sentek Dynamics’ sales department.

Chamber Model Volume ft3 (L) Maximum Force Shaker Model Rated Force kN (lbf) Maximum Slip Table Size mm (in)
THV-600 21 (600) M2232A 22 (4840) 600 (23.6)
THV-1200 42 (1200) M3240A 32 (7040) 800 (31.5)
THV-2200 78 (2200) H8044A 80 (17,600) 1200 (47.2)
THV-3300 117 (3300) H8044A 80 (17,600) 1200 (47.2)
THV-6000 212 (6000) H12056A 120 (26,400) 1500 (59.1)
THV-8000 283 (8000) H12056A 120 (26,400) 1500 (59.1)
THV-10000 353 (10,000) E30076A 300 (66,000) 1500 (59.1)
THV-12000 424 (12,000) E40086A 400 (88,000) 1800 (70.9)