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The 20.SS is an electromechanical device designed to protect equipment from damaging shock or vibration. The sensitive mechanism detects excessive shock and shutdown the equipment before further damage occurs.
20SS shockswitches are housed in an ATEX certified enclosure and can be used for applications requiring an execution of EEx-d-IIC-T6.
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CAPACITIVE ACCELEROMETER
- 2 to 1000g FULL SCALE
- DC & DYNAMIC ACCELERATION RESPONSE
- WIDE TEMPERATURE RANGE (-55/+125 °C available)
- VARIOUS ACCELEROMETER OUTPUTS:
Digital: 100 to 1000 kHz Clock Frequency
Analog: ±4V Differential or 0.5 to 4.5V Single Ended
- ± 1% OPERATIONAL LINEARITY
- OVERSHOCK RESISTANCE to 10,000 g
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Single Axis A640
Ranges ±1g to ±20g, ±5Vdc output
Features
- Ranges ±1g to ±20g
- Essentially zero temperature coefficent of
damping ratio
- Filtered and unfiltered outputs
simultaneously available
- Integral temperature compensation
- DC input - DC output
- High reliability
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Endevco Model 12M1A PICOCHIP™ is a high performance piezoelectric accelerometer packaged as a surface mount chip component. The unit is engineered for integration in standard hybrid or SMT electronics packages, along with custom designed signal conditioning circuits, allowing the user to create miniaturized shock and vibration measurement systems in one completely integrated package.
Model 12M1A features Endevco’s PIEZITE Type P-8 bimorph sensing element, operating in bender mode, which provides low base strain sensitivity, low pyroelectric output, and extremely high charge output versus size. Contact with the sensing element is made through two thick film gold metalized mounting pads on the bottom surface of the aluminum case. The unit is designed to be mounted with conductive adhesives or solder.
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The D.Electron 3-axial acceleromter has been designed to be the transducer of a motion control system capable of eliminating unwanted floxures and oscillations of a machine tool.
While the standard position transducer cannot measure the real tool-tip position, it could be the nearer transducer to the tip of the tool.
Novelty of the D.Electron 3-axial accelrometer is the possibility of being connected to any motion control system (not only D.Electron Z32 CNC): its output is coded as a standard encoder output.
The accelerometer has been designed for real-time applications, with extremely fast A/D conversion and maximum output delay below 1 mcro-second.
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Various Kistler accelerometers are suitable for use even at the extremes of the measurement range. Miniature models designed for minimal mass loading are still capable of generating a significant signal. Conversely, high sensitivity models are available for testing low amplitude motions down to a complete standstill.
K-Shear® Triaxial TEDS Accelerometer, 500g:
Low impedance voltage mode, low profile design, quartz shear accuracy and stability, hermetically sealed, CE compliant.
Applications
Useful for measuring small and lightweight structures, where mass loading must be kept at a minimum.
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3 Axis Acceleration Sensing
- Capacitive Based Nitrogen Damped Sensors
- ± 4V differential or +4 V Single Ended Outputs
- Low Power Consumption
- -55 to +125 °C Operation
- +5 V DC Power
- 8 Wire Connection
- Responds to DC & AC Acceleration
- Hermetic Capacitive Sensors
- Non Standard G Ranges Available
DESCRIPTION
The Model 2422 triaxial accelerometer module combines three orthogonally mounted Model 1210 integrated accelerometers in an anodized aluminum case for measuring accelerations in commercial/industrial environments. It is tailored for zero to medium frequency instrumentation applications. Each of the three internal accelerometers contains a miniature, hermetically sealed, micromachined capacitive sense element and a custom integrated circuit sense amplifier. It is relatively insensitive to temperature changes and gradients and its frequency response includes DC.
• Rugged Anodized Aluminum Case
• No External Reference Voltage Required
WWW.SILICONDESIGNS.COM
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Wilcoxon Research manufactures a variety of triaxial sensors which consist of three sensing elements within a single housing. These transducers allow for the acquisition of multi-directional data at a single mounting location. Proponents of multi-axial sensors cite the increase speed of data collection, its inherently consistent readings and reduction in wiring for permanent installations.
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The Columbia Models SA-102MFTB and SA-302MFTA are precision miniature force balance accelerometers designed to operate from +24 to +32 VDC aircraft power. The high level output signal and inherent self-regulation qualities of the servo loop design make these accelerometers excellent candidates for airborne telemetry applications. The output signal format is compatible with most airborne VCO’s and signal processing systems.
Both configurations incorporate the Columbia HP torquer system, which provides exceptional performance and reliability in the severe vibration and shock environments associated with aircraft and missile flights.
- EXCITATION: +24 To +32VDC
- RANGES AVAILABLE: ±1Thru ±35g
- Details: Miniature - Airborne
- OVERALL ACCURACY: ±0.2%
- OUTPUT: 0.2 To 4.8V
- TEMPERATURE RANGE: -50°C To +90°C
- VIB LIMIT: 10g
- DAMPING: Electrical
- WEIGHT: 14OZ
- ELECTRICAL CONNECTION: Solder Pins
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Lightweight triaxial vibration transducer comprising three KONIC all welded inserts bonded orthogonally into a hard anodised aluminium housing.
The inserts are electrically insulated, individually and from the housing, thus
eliminating ground loop interference. The additional mechanical isolation implicit in the construction provides also near elimination
of strain induced error.
The spatial response of a structure to dynamic forcing may lead to erroneous single axis vibration or shock measurement due to the
inherent directional property of the transducer.
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Lightweight triaxial vibration transducer comprising three KONIC all welded inserts, each with hybrid QVC, bonded orthogonally into a hard anodised aluminium housing. The inserts are electrically insulated, individually
and from the housing, thus eliminating ground loop interference. Low impedance O/P provides a high degree of noise immunity (80dB
improvement vs. equiv. charge source device @ 50Hz) and allows use with low cost coaxialcable.
The additional mechanical isolation implicit in the construction provides also near elimination of strain induced error. All the 3x10/32 Microdot connectors are exiting in the same direction.
The spatial response of a structure to dynamic forcing, may lead to erroneous single axis vibration or shock measurement due to the
inherent directional property of the transducer.
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Highest sensitivity multiple shear plate vibration transducer, intended for micro g level measurement. Virtual immunity to strain input side effects provides guarantee of low frequency measurement integrity. System noise
level of 10-2pC is equivalent to 1mg. With bandwidth restricted to 2kHz, 1 octave below resonance, noise floor should be significantly below this.
Noise level vs. upper corner frequency for the CA/04/N charge amplifier, A/800 source and nominal l0Mtr. cable is shown in Fig.1. Bear in mind that charge amplifier noise increases as a function of input capacitance - noise
assessment should be made with the charge amplifier input correctly terminated.
The transducer adds mass at its point of attachment to a structure, thus imposes a transparency constraint above which data corruption will be excessive.
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We offer a wide range of vibration sensors for the most demanding applications, including EEx. Acceleration sensors, velocity sensors, displacement sensors. For advice on the correct sensor and installation accessories, we recommend that you discuss your specific application with our specialists to ensure the correct solution.
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The most popular and environmentally friendly motion and vibration sensors are the AU2400 and AU2401 series. Being gold plated, they have a superior contact surface.
A new version of motion and vibration sensors is the AG2400 and AG2401. For these the gold plating has been replaced by silver for less critical applications in order to reduce cost.
The motion or vibration sensors are %u201Cchange of state%u201D sensors; that is the contacts may be open or closed in any position but upon movement or vibration the contacts will change state intermittently.
The contact capacity is 24 Vac/dc, at 0.20 amps max and 5VA max.
Several different electrode configurations exist for hole and surface mounting.
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The MTI-2100 Fotonic Sensor is a high-resoulution fiber optic based vibration/displacement sensor with extremely high frequency response. The system offers a bandwidth up to 500 kHz and resolution to 0.01 microinch (2.5 Angstrom).
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Model 626A04
Seismic, low frequency, ceramic flexural ICP® accel, 10 V/g, 0.03 to 500 Hz, top exit, 2-pin conn.
Broadband Resolution: (1 to 10000 Hz) 0.5 µg (5.0 µm/s²)
Electrical Connector: 2-Pin MIL-C-5015
Electrical Connection Position: Top
Weight: 22 oz (624 gm)
Model 626A34
Seismic, low frequency, ceramic flexural ICP® accel, 10 V/g, 0.03 to 500 Hz, top exit, 3-pin conn.
Broadband Resolution: (1 to 10 kHz) 0.5 µg (5.0 µm/s²)
Electrical Connector: 3-Pin MIL-C-26482
Weight: 22 oz (624 gm)
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When masses in motion get out of control, they are highly dangerous. To ensure that they remain under control, their state has to be monitored and measured. SCHMIDT® acceleration sensors and SCHMIDT® vibration monitors offer reliable collection and processing of data for safe operations.
Measurement quantity
* Acceleration
* Vibration
Field of application
* Machinery
* Test equipment
* Automotive technology
* techn. equipment
Example of application
* Machine monitoring and diagnosis
* Vibration analysis
* Imbalance detection in engines, generators, turbines, centrifuges, fans, rapidly-rotating machinery.
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The accelerometers piezoelectric Wilcoxon pemettent the measurement of vibration on your revolving machines.
These sensors, amplified exit IEPE, associated with modules IT allow a low monitoring cost of your revolving machines or production and is also appropriate for the measurement of traditional vibration.
Family PC420 has an exit 4-20mA and are compatible with the entries automats and of the systems of monitoring or management of alarm.
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4-20 mA Vibration Sensors
Output signal proportional to overall vibration, peak or RMS
Vibration data for direct interface to existing PLC or DCS networks
Process Control applications
Vibration trending for basic Condition Based Monitoring applications
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The highly sensitive vibration sensors of our GEO series offer a surprisingly high sensitivity over a wide frequency range down to 8Hz (4Hz). They are especially suitable for detecting vibrations in machines and electronic circuitry or in the working environment, as well as monitoring compliance with (official) exposure limits.
In addition to regular monitoring, thanks to their high sensitivity, these probes can also be used as geofone to measure ground motion (displacement).
In conjunction with our SPECTRAN 50xx series spectrum analyzers and our free PC analyzer-software "LCS", the entire frequency range between 8Hz (4Hz) and 1kHz can be analyzed, monitored and documented. Long-term recording for days or even weeks is not a problem at all, either. These sensors are equipped with a 1m SMA cable (similar with the one used with our test-antennas), allowing direct connection to the high-sensitivity signal input of our SPECTRAN EMC-Analyzer.
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General purpose vibration transducers with the following attributes : KONIC sensing element providing 28/42pC/g signal from 17/27gm wt. transducer.
All welded construction including signal connections maximises longevity under adverse operating conditions.
Relative freedom from strain induced error reduces low frequency measurement uncertainty
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The choice of the correct measuring pick-up or sensor has a significant influence on the quality of a measurement. This is why Hofmann offers a wide range of sensors for different applications:
* Accelerometers , vibration velocity sensors and shaft vibration sensors
* Speed sensors
* Sensor for the measurement of relative expansions
* Sensor for the measurement of absolute positions
Certain sensors are approved for Ex-zones.
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The SOLID transducers are piezo-electric accelerometers of compression type, each individually tuned. Enhanced electronics and improved ambient characteristics deliver excellent performance in a very large area of applications.
The SOLID transmitters provide a 4-20 mA output signal proportional to the vibration velocity, across its frequency range. The output signal can be transmitted to common process control systems like PLC, DCS and SCADA. The transmitters operate using power from any standard 4-20 mA loop. No additional power is necessary.
Features of the transmitters are unique micro controller design and calibration data stored in the sensor. The measuring range is 0 - 25 mm/s and the frequency range 2-1000 Hz.
The SOLID transducers and transmitters all come with top connector for fast and easy installation. A special SOLID transducer with side connector is also available for use in rough industrial environments where moist and water may cause equipment problems.
The SOLID transducers and transmitters are designed to withstand the rigors of industrial environments. Stainless, acid proof steel housings, case isolation and hermetic sealing make them very robust.
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Accelerometers, Acceleration sensors, Shock sensors
