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Introduction to LIVM Accelerometers

From Dytran Instruments, Inc.
 

 
Low Impedance Voltage Mode (LIVM) accelerometers are designed to measure shock and vibration phenomena over a wide frequency range. They contain integral IC electronics that converts the high impedance signal generated by the piezo crystals to a low impedance voltage that can drive long cables with excellent noise immunity.
Products & Services
Vibration instruments are used for measuring, displaying and analyzing vibration. Typically these instruments comprise a transducer, data acquisition and either a local display or some sort of output to a computer or another instrument. Search by Specification | Learn more about Vibration Instruments
Accelerometers are instruments for measuring, displaying, and analyzing acceleration and vibration. Search by Specification | Learn more about Accelerometers
Shock and impact sensors are devices that detect sudden or severe impacts at a predetermined level and indicate whether the level has been exceeded. Search by Specification | Learn more about Shock and Impact Sensors
Seismic instruments are used to measure low frequency ground motion caused by earthquakes. Search by Specification | Learn more about Seismic Instruments
Impact hammers are used in structural and modal analysis to determine component or system response to impacts of varying amplitude and duration. A hammer with a force transducer in its head is paired with an accelerometer on the component being tested to compare impact and response. Search by Specification | Learn more about Impact Hammers
Product Announcements
Dataforth Corporation - Enhanced Accelerometer Input Module
Dataforth's enhanced SCM5B48 isolated, field-configurable accelerometer input module is a highly accurate, low noise signal conditioning solution for aircraft and aerospace R&D, automotive noise... (read more)
Endevco Corporation - Endevco® Low-Cost PE Accel
Endevco® model 751 is a low-cost, lightweight piezoelectric accelerometers with integral electronics, designed for measuring vibration on small structures. This unit is hermetically sealed against... (read more)
Rieker, Inc. - Accelerometers Linear Static & Dynamic
Rieker Accelerometers Small capacitive spring mass Frequency ranges 0Hz to 1.5kHz Analog DC output Resistance to extreme acceleration overloads & shocks up to 10,000g Configured to... (read more)
Kistler Instrument Corporation - Light Weight Accelerometers; 8774A50 & 8776A50
The 8774A50 and 8776A50 are 4-gram, voltage mode ceramic shear accelerometers, designed specifically for multi channel OEM applications. (read more)
Kistler Instrument Corporation - Light Weight Shock Accelerometers; 8742A Series
The 8742A, is a new light weight thermally stable shock accelerometer series available in four measuring ranges from 5k to 50k g. (read more)
Dytran Instruments, Inc. - Tear Drop Accelerometers, Models 3225M23 & 3225M24
Models 3225M23 and 3225M24 are high sensitivity, miniature, low profile, voltage mode (IEPE) piezoelectric accelerometers designed to mount in spaces inaccessible to other types of accelerometers. (read more)
Dytran Instruments, Inc. - Ultra Low Noise Miniature Triaxial Accelerometers
Dytran Instruments, Inc. has just released a new miniature triaxial accelerometer designed for modal analysis testing. The 3273A series features a robust, laser welded titanium design which includes... (read more)
Dytran Instruments, Inc. - Ultra Miniature IEPE Accelerometers
Weighing in at just 0.2 grams, Dytran's 3224A series of accelerometers are amongst the smallest IEPE accelerometers in the world! Because of their very small weight, these miniature accelerometers... (read more)
Columbia Research Labs, Inc. - High Sensitivity, Low-Noise LN Series Sensors
Models SA-107LN, SA-207LN, and SA-307LN servo accelerometers from Columbia Research Labs are high sensitivity, ultra low noise sensors designed for use in seismic, and low level, low frequency motion... (read more)
 
Topics of Interest
Dytran charge mode accelerometers are designed to measure shock and vibration phenomena over a broad temperature range. These accelerometers, unlike the Low Impedance Voltage Mode (LIVM) types,... (Read More)
Low Impedance Voltage Mode (LIVM) force sensors contain thin piezoelectric crystals which generate analog voltage signals in response to applied dynamic forces. A built in IC chip amplifier converts... (Read More)
Low Impedance Voltage Mode (LIVM) sensors are piezoelectric devices with integral FET impedance converting amplifiers. To bias the amplifier, a high value resistor is placed in parallel with the gate... (Read More)
In order to fully understand the purpose of current source power units, it will be necessary to first understand the operation of the low impedance voltage mode (LIVM) sensors with which the power... (Read More)
AC alternating current axial cam see barrel cam B-spline basis spline, a type of mathematical function useful for cam-follower motion barrel cam one in which... (Read More)
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