105/106 Event Detector "Normally Open" Option
Historically, most 'Event' detection, also known as 'Glitch' or 'Chatter' detection, has involved the detection of short duration opens (intermittent "disconnections") in electrical interconnects, typically in the presence of some sort of environmental stimulus such as thermal cycling, shock, vibration, etc. Occasionally, some users would like to detect the opposite condition, namely short duration shorts (intermittent "connections") in electrical interconnects, under the same type of environmental conditions. The detection of 'tin whiskers', a phenomena in electronics generally associated with high tin content plating and solders (ie. 'lead free' solders) is a perfect application for this type of testing. It is also possible that both 'normally closed' and 'normally open' Event detection may be desired as part of the same test. A perfect example is relay contact testing while undergoing vibration testing. In this situation, it is desirable that the NC (normally-closed) contacts of the relay do not Open under vibration, and that the NO (normally open) contacts do not Close under the same conditions. Other examples are solenoids, resolvers, and other electro-mechanical devices that utilize internal coils or windings. In this situation, it is desirable to test that the internal coils/windings do not Open under vibration, and that the same coils/windings do not Short to the chassis/case under the same conditions.
Analysis Tech, Inc. offers the 32-HLV-NO option to the 105/106 Event Detector product line to satisfy the need for 'normally open' type testing as described above. This option, which installs between the test specimens and the 105/106 Event Detector, will provide up to 32 channels of 'normally open' Event Detection. In most instances, all 32 channels of the 32-HLV-NO are used, however it is also possible to use only 16 channels. This configuration may be desirable when the 32-HLV-NO is used with the model 32-106 Event Detector so that both NC and NO Event detection can be performed simultaneously.
Features
- Easy user-installation
- Robust mechanical design
- Convenient adjustment for channel Compliance voltage
- Convenient adjustment for channel Resistance threshold
- Includes all cables and hardware
Ordering Information: Order part number: 32-HLV-NO