Acoustic and Vibration Test Equipment Repair Services Specifications

Help with Acoustic and Vibration Test Equipment Repair Services specifications:

Capabilities


	Expertise
	Your choices are...
	Accelerometer / Vibration Sensor		Accelerometers are sensors and instruments for measuring, displaying and analyzing acceleration and vibration. They can be used on a stand-alone basis, or in conjunction with a data acquisition system. Accelerometers are available in many forms. They can be raw sensing elements, packaged transducers, or as a sensor system or instrument, incorporating features such as totalizing, local or remote display and data recording. Accelerometers can have from one axis to three axes of measurement, the multiple axes typically being orthogonal to each other. These devices work on many operating principles. The most common types of accelerometers are piezoelectric, capacitance, null-balance, strain gage, resonance, piezoresistive and magnetic induction. Vibration sensors are sensors for measuring, displaying and analyzing linear velocity, displacement and proximity, or else acceleration. They can be used on a stand-alone basis, or in conjunction with a data acquisition system. Vibration sensors are available in many forms. They can be raw sensing elements, packaged transducers, or as a sensor system or instrument, incorporating features such as totalizing, local or remote display and data recording.
	Acoustic Sensors / Microphones		Measurement microphones are most commonly condenser microphones in which sound pressure actuates a diaphragm that is one plate of a capacitor. The relative motion of the capacitor plates causes a change in capacitance and the resulting voltage is measured and converted into a reading such as sound pressure level (SPL). Measurement microphones are described by type of sound field. Pressure field measurement microphones are used to measure sound pressure that has the same magnitude and phase throughout the field. Free field microphones are used to measure a plane wave that is propagating freely in one defined direction. Diffuse field measurement microphones, also known as random incidence microphones, measure sound waves from all directions.
	Acoustic / Ultrasonic Transducers		Ultrasonic transducers send and receive waves for many types of sensing. Distance, proximity, level, nondestructive evaluation, web break detection, counting, and security applications are some examples. They typically operate at their resonant frequency with various construction options, beam patterns, and power levels. Underwater acoustic transducers can contain both transmitters and receivers, or they can be solely transmitters used in conjunction with a hydrophone. They sense reflected sound and use distance and directional data for communication, mapping and navigation. Underwater acoustic transducers have an operational range, but are usually designed to operate at their resonance frequency to maximize output power. They are most typically single frequency transmitters, but they may contain multiple transmitters and receivers for different frequencies.
	Hydrophones		Hydrophones are underwater acoustic sensors, which most commonly use piezoelectric technology. They can be used singly or in arrays that can contain dozens or hundreds of individual units. They are used in marine geological and biological research, undersea mapping and navigation, and various commercial and military applications.
	Impact Hammers		Impact hammers are used in structural and modal analysis to determine component or system response to impacts of varying amplitude and duration. It is simply a hammer with a force transducer in its head is paired with an accelerometer on the component being tested to compare impact and response. Impact hammers are used for modal and structural behavior analysis for all types of components and systems. The most critical specifications for impact hammers are the force and pulse duration, both rated by minimums and maximums. Force is measured in pounds, kg, N and other similar units. The pulse duration, a measurement of the time the hammer is imparting a force on the object being tested, is a very short span of time, often measured in milliseconds. Another important specification is the upper limit of the frequency range. This is the highest frequency for which the response will be tested, and can be altered by using accessory tips, if available.
	Position Sensor / Instrument		Position sensors encompass a wide range of sensors, switches and technologies that are used to determine the placement, speed or movement, direction, and location of a given target. Linear position devices include cable extension, capacitive, eddy current, fiber optic, Hall effect, inductive, magneto resistive, optical triangulation, photoelectric, position displacement, ultrasonic, and variable resistance technology sensors. Other instruments include laser micrometers, linear encoders, linear potentiometers, and LVDTs. Rotary position sensors include rotary encoders and angular position sensors. Orientation position sensors include encoders, inertial gyros, and inclinometers.
	Power Supplies / Amplifiers		Any AC or DC power supply or conditioner.
	Shakers		Shakers and vibration and shock testing equipment are force generators or transducers that provide a vibration, shock or modal excitation source for testing and analysis. Shakers are used to determine product or component performance under vibration or shock loads, detect flaws through modal analysis, verify product designs, measure structural fatigue of a system or material or simulate the shock or vibration conditions found in aerospace, transportation or other areas.
	Shaker Controllers		Shaker controllers are units designed to control shaker tables. The simplest types of shaker controllers are controlled manually and depend on the operator to read and evaluate the feedback signal and adjust the amplifier signal input voltage accordingly. This type of system can be as simple as a sine wave signal generator and an accelerometer monitored by a voltmeter. It is left to the operator to manually make the necessary gain compensation for changes in frequency or desired level specifications.
	Sound Level Meters / Dosimeters		Sound level meters and noise dosimeters are used in many kinds of sound and noise analysis including industrial safety, traffic and transportation noise quantification, and scientific noise measurement. They are frequently hand-held and battery-powered. Sound level meters measure real-time sound and can have functions such as signal analysis, noise dose measurement, and different time and frequency weighting.
	Speed / Velocity Instrument		Instruments and controllers that measure monitor or adjust velocity or speed in shafts, moving webs and other components.
	Ultrasonic Instruments		Ultrasonic instruments (UT) are devices that use ultrasonic signals to inspect materials and components. UT inspection techniques can be used, for instance, to detect surface and subsurface flaws or to measure thickness. Beams of high frequency acoustic energy are introduced into the material and subsequently retrieved. Distance calculations are based on the speed of sound through the material being evaluated. The most widely used of all UT techniques is the pulse-echo technique. Flaws are detected and sizes estimated by comparing the amplitude of a reflected echo from an interface (flaw or back surface) with that of a reference interface of known size.
	Vibration / Noise Analyzer (FFT)		Instruments for measuring and analyzing vibration or acceleration, using accelerometers or displacement sensors including systems for vibration testing, and modal analysis such as the instrumentation to acquire data and/or analyze results. 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. Vibration instruments can have many features, including incorporating features such as totalizing, local or remote display and data recording. They may be stationary or else portable field-type instruments.
	Specialty / Other		Instruments for measuring and analyzing vibration or acceleration, using accelerometers or displacement sensors including systems for vibration testing, and modal analysis such as the instrumentation to acquire data and/or analyze results. 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. Vibration instruments can have many features, including incorporating features such as totalizing, local or remote display and data recording. They may be stationary or else portable field-type instruments.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Services


	Services Offered:
	Your choices are...
	Bench Repair (Off-site)		Bench repair refers to off-site equipment or instrument repair in the service supplier's shop. The test equipment or instruments need to be disconnected and transported to or picked up by the repair shop.
	Field / On-site Repair		Supplier has personnel and/or equipment for on-site repair work, eliminating the added expense of taking the instrument off line and shipping it.
	Calibration Service		Calibration services for various test equipment and instruments including evaluating the output or accuracy compared to standards or established values.
	Installation / Start-up		Supplier has personnel and/or equipment for on-site installation and start-up of new, repaired or replacement equipment or instruments. The supplier may also provide personnel training and test the acceptability of the equipment to the required specifications.
	OEM / Warranty Authorized Shop		Supplier has personnel and/or equipment that are certified or approved for OEM or warranty repair work.
	Pick-up and Delivery		Supplier offers pick-up and delivery services to minimize cost and time associated with using in-house personnel.
	Preventative Maintenance Program		Preventative maintenance and services contracts refer to programs for performing proactive maintenance in order to prevent system problems. This is contrasted to troubleshooting, diagnostic or corrective maintenance, which is performed to correct an already existing problem.
	Rapid Turnaround		Supplier offers quick turnaround on repair services; typically in a few days.
	Remanufacturing / Complete Rebuild		Supplier has personnel and/or equipment for to completely overhaul or rebuild equipment or instruments, which may be an effective alternative for costly or specialized units.
	Rental / Lease		The supplier can rent or lease equipment to the customer while the necessary tests are being conducted.
	Replacement / Exchange Program		Supplier has capabilities and resources for setting up an in-house contract lab for supplier - minimizing any downtime or lag in getting instruments quickly calibrated.
	Spare Parts Inventory		Supplier expedites repairs by carrying an inventory of spare replacement parts or sub-systems in-house, eliminating the added time that ordering and shipping parts would require.
	Troubleshoot & Repair		Troubleshooting refers to diagnostic or corrective maintenance, which is performed to correct an already-existing problem. This is contrasted to preventive maintenance, which refers to performing proactive maintenance in order to prevent system problems.
	Upgrade Service		Service to upgrade or enhance the performance of an existing product through the addition of an entirely new component or replacement of a component with an improved or updated unit.
	Specialty / Other		Other unlisted, specialty, or proprietary service.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Location



	Your choices are...
	North America		Companies are located in the United States, Canada or Mexico.
	United States Only		Companies are located in the United States.
	Northeast US Only		Companies are located in the Northeast United States, namely Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and Vermont.
	Southern US Only		Companies are located in the Southern United States, namely Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, Washington D.C., and West Virginia.
	Southwest US Only		Companies are located in the Southwest United States, namely Arizona, California, Colorado, Nevada, New Mexico and Utah.
	Northwest US Only		Companies are located in the Northwest United States, namely Idaho, Montana, Oregon, Washington and Wyoming.
	Midwest US Only		Companies are located in the Midwest United States, namely Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Nebraska, North Dakota, Ohio, South Dakota and Wisconsin.
	Canada Only		Companies are located in Canada.
	South / Central America Only		Companies are located in South American countries such as Argentina, Brazil, or Chile; or in Central American countries such as Costa Rica, Honduras, Panama, etc.
	Europe Only		Companies are located in Europe, namely Germany, Ireland, Italy, United Kingdom, etc.
	Near East Only		Companies are located in the Near East, namely Egypt, Israel, Saudi Arabia, etc.
	South Asia Only		Companies are located in South Asia, namely India, Pakistan, Nepal, etc.
	East Asia / Pacific Only		Companies are located in East Asia, namely China, Japan, Taiwan, etc.
	Oceania Only		Companies are located in Australia, New Zealand, Papua New Guinea and a large group of South Pacific islands that include Micronesia, Polynesia, Guam, Fiji, Tonga, etc.
	Africa Only		Companies are located in sub-Saharan Africa.
	Other		Other unlisted country or region.
	Search Logic:		Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Acoustic and Vibration Test Equipment Repair Services Specifications

Expertise:

Services Offered:

Location:

Help with Acoustic and Vibration Test Equipment Repair Services specifications: