Electric & Electromagnetic Sensors . . .
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Extending the Range of Terahertz Detection
Terahertz wave technology, a powerful tool for detecting hidden explosives, chemicals, and other dangerous materials, works only over short distances. However, a doctoral candidate has been working on a way around that. Using multiple lasers and a sensitive acoustic microphone, he can "listen" to terahertz signals from distances up to 11 m. It's a technique he calls "Terahertz Enhanced Acoustics."
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No Inductance or Capacitance Meter? Make Do
Need to measure inductance or capacitance, but don't have a meter for that? Here's how — armed with the right equations — you can use instruments you probably do have (a signal- or function-generator, a frequency counter, and an oscilloscope) to make some simple measurements and compute inductance and capacitance. The author also shows you some shortcuts to simplify the calculations.
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Don't Let Switches Mess Up the Signal
Often it's convenient to use a switch (or switching matrix) between a meter or ADC and devices under test (DUTs). But as this author notes, it's important to understand how switches can affect your test results. In this article, he takes a look at relays (switches with electromagnetic actuators) and discusses how they can impact measurement accuracy.
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Video Crosspoint Switch
Developed to meet small to medium-sized video switching applications, this low-power crosspoint switching IC is optimized for the SMPTE Serial Digital Interface (SDI); it also works with fiber interfaces up to 3.2 Gbps. Reconfigurable input/outputs (I/Os) let developers customize the matrix size to suit their applications — from 18 x 6, to 12 x 12, to 1 x 23, or any variation in between.
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Looking for Ultra-small DAS That Supports IEPE Sensors? Diversified Technical Systems, Inc. (DTS)
SLICE standalone data recorders support Integrated Electronics Piezo-Electric (IEPE) sensor types (ICP®, Isotron®, LIVM, Piezotron®). Features include: 16 bit ADC, sampling to 120 ksps/channel, 500 g shock rating, flexible channel configurations, 7 GB flash memory, 42 x 42 mm footprint. Ideal for airframe, UAV, helicopter rotor, and missile testing. ARS and ACCEL SLICE also available.
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Versatile Temperature Sensor Module Dexter Research Center, Inc.
Dexter Research Center Inc., long recognized as the manufacturer of the world's best infrared detector, has expanded its Temperature Sensor Module line to service interest expressed by 150 applications to date.
This is a low-cost, turnkey solution with calibrated digital output for medical, consumer, commercial, and industrial applications.
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SST Launches High Temperature Level Sensor SST Sensing Ltd.
SST expands their reliable and robust Optomax Digital range of Liquid Level Sensors by launching a new extended temperature version, able to operate from -40 to +257 F. In addition, SST improved the sensors by introducing new features such as reduced power consumption and increased output power.
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Magnet Interaction PTM Now at Digi-Key MEDER electronic, Inc.
Broaden your Reed Switch Technology knowledge with MEDER electronics' newest PTM "Reed Switch Magnet Interaction" now available at Digi-Key. This PTM demonstrates the interaction between the magnet and reed switch in various configurations, including parallel and perpendicular movement and position as well as rotational and pivotal movements… More PTM's.
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Thermal, Mechanical & Pressure Sensors . . .
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Orthodontics with 'Feeling'
Success with orthodontic braces depends mainly upon the experience level of the orthodontist, says this article. Currently, the stress that the braces apply to teeth is measured with a simple spring scale that makes only a one-dimensional measurement. Now, researchers have come up with "intelligent" orthodontic braces incorporating built in stress sensors, so orthodontists can measure the forces exerted upon individual teeth in two dimensions.
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This Accelerometer Can Take the Heat
Vibration sensors that will monitor high-temperature jet and turboprop engines, helicopters, gas turbines, and nuclear power plant machinery have to handle heat. This one is rated for 482 C, which should cover a great many monitoring assignments in those applications. The piezoelectric device is available in sensitivities of 10, 50, and 100 pC/g.
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GigE Vision Times 10
We'll likely see an upgrade of the GigE Vision standard to Version 2.0 in the second half of this year, according to this article. Among the enhancements, the author says, will be higher data transfer rates, with support for 10 Gigabit Ethernet. He also predicts that Version 2.0 will standardize the video compression methods used over GigE Vision links.
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Cavitation Sensor Aids Ultrasonic Cleaning
Cavitation is at the heart of ultrasonic cleaning processes. It's also central to sonically controlling crystallization processes in advanced pharmaceutical and foodstuffs manufacture. Therefore, the capability to monitor cavitation in real-time during cleaning or sonocrystallization is key to monitoring the effectiveness of the process itself. This article unveils a newly-developed sensor that can do just that.
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Vision Sensor Reads 1D and 2D Barcodes Balluff, Inc.
The new Balluff Sharpshooter ID vision sensor can check the 1D or 2D data matrix barcodes on your products with one of the highest code module resolutions available in its price range. It can also read sequences of numbers or text using OCV. Read more and watch video.
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New Product Performs 45° Tilt and Rotation Detecting OncQue Corporation
Specially designed for portable 3C devices, applications include screen rotation, shaking device for shuffling the process or picture to another. Miniature size with sharp and reliable performance. For more information about sensor switches, please visit Oncque.
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Key Switch — KS Series Dailywell Electronics Co., Ltd.
Features: several color caps are available; high reliability contact, clear switching feedback; high brightness LED; button surfaces are illuminated and even. Applications: medical equipment (medical bed); lighting; instrument panels, operating machine panels, audio control panels; NC panels. Specifications: Rating: 100mA max, 42 VAC/DC; mechanical life: 1,000,000 cycles; contact resistance: 100MΩ max. (initial)
Contact us.
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Encoder Disc Series Honest Sensor Corporation
Features:
• Customer design available • CHIP DISK without crack • Increment and absolute available • Transmissive and reflective
Also, low cost; high Resolutions; standard MYLAR; semiconductor process; operating temperature -40 C ~ +100 C; thickness 0.25 mm; RoHS Produ. Contact us.
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