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From dytran.com
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 units are designed to operate. Most Dytran sensors utilize a common drain unity gain MOSFET integrated circuit (IC) amplifier to reduce the impedance level of the self generating piezoelectric crystals by 10 orders of magnitude (see Figure 1). Some Dytran sensors have voltage gain IC’s, others utilize miniature charge amplifiers. All operate on the same two-wire principle. All of the amplifiers are located within the sensor housing. Products & Services
MOSFET RF transistors are metal-oxide semiconductor field-effect transistors (MOSFETs) that are designed to handle high-power RF signals from devices such as stereo amplifiers, radio transmitters, TV monitors, etc.
Piezoelectric drivers and piezoelectric amplifiers are power sources that provide the high voltage levels needed to drive other piezoelectric devices such as actuators, motors, transducers, and sensors.
Piezoelectric sensors measure the electrical potential caused by applying mechanical force to a piezoelectric material. They are used in a variety of pressure-sensing applications.
Operational transconductance amplifiers (OTA) are devices that convert an input voltage to an output current. They are primarily voltage-to-current amplifiers.
Buffer amplifiers have unity gain. They are used to match impedances between two devices, or as isolators.
Product Announcements
Topics of Interest
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...
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Dynamic pressure sensors are designed to measure pressure changes in liquids and gasses such as in shock tube studies, in-cylinder pressure measurements, field blast tests, pressure pump...
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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...
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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,...
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The piezoelectric effect was discovered by Pierre and Jacques Curie in 1880. It remained a mere curiosity until the 1940s. The property of certain crystals to exhibit electrical charges under...
(Read More)
Technical Articles
Introduction to Current Source Power Units
- Sensors, Transducers and Detectors
Introduction to Piezoelectric Pressure Sensors
- Pressure Sensing
Introduction to Piezoelectric Force Sensors
- Force Sensing
Piezoelectric Measurement System Comparison: Charge Mode vs. Low Impedance Voltage Mode (LIVM)
- Sensors, Transducers and Detectors
Introduction to Charge Mode Accelerometers
- Acceleration and Vibration Sensing
Thin Film Deposition Introduction
- Vacuum Equipment
Source Controller
- Vacuum Equipment
Introduction to Piezoelectric Pressure Sensors
- Sensors, Transducers and Detectors
Introduction to LIVM Accelerometers
- Acceleration and Vibration Sensing
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