Vibration Measurement Instruments and Vibration Analyzers Specifications

Help with Vibration Measurement Instruments and Vibration Analyzers specifications:

Performance Specifications

	Acceleration		Instruments that do not have integrated or associated sensors do not have a rated acceleration value. Searching by acceleration yields possible matches for those items. Enter the maximum acceleration to measure. One 'g' is the gravity on earth: 32.2 ft/sec2 or 9.8m/s2.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Linear Velocity		The maximum range within which devices can operate.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Proximity / Displacement Range		Proximity or displacement range is the measurement range of the sensor in the linear region, i.e., where the output varies consistently with the measured distance or displacement.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Frequency Range		The frequency range of interest. Enter "0" for DC response.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
	Minimum Accuracy		The minimum acceptable accuracy.
	Search Logic:		All matching products will have a value less than or equal to the specified value.
	Number of Input Channels		The number of inputs accepted by the instrument or meter.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.

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Instrument Inputs

	Signal Input
	Your choices are...
	Voltage		Any linear voltage input from a sensing device.
	Current		This is typically called a current loop for transmitting the signal over long distances. There are a few current ranges employed in current loops. The most common range is 4-20 ma. Another less-common range is 0-20 ma.
	Frequency		Frequency or modulated frequency inputs (e.g., sine wave, pulse train, AM, or FM). A format that uses continuous physical variables such as voltage amplitude or frequency variations to transmit information.
	Serial		A standard digital serial protocol such as RS232, RS422, RS485, etc.
	Wireless		Wireless communication may be battery powered (radio or infrared).
	Other		Other unlisted or proprietary inputs.
	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.
	Sensor Inputs
	Your choices are...
	Accelerometer		Accelerometers are used for higher frequencies or when force must be analyzed. They are sometimes called seismic vibration sensors.
	Linear Velocity		Linear velocity is used for intermediate frequencies and when displacements are small or must be correlated to acoustic measurements.
	Proximity / Displacement		Proximity or displacement sensors are used for low frequencies or where displacement amplitude is important.
	Rotary Velocity/Tachometer		Rotary velocity devices accept inputs from rotary velocity sensors or tachometers.
	Temperature		Devices accept inputs from temperature sensors including thermocouples, thermistors, or resistance temperature detectors (RTDs).
	Other		Other unlisted or proprietary input devices.
	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.
	Sensor Technology
	Your choices are...
	Capacitance		Capacitance accelerometers operate by sensing the electrical capacitance change between a static and dynamic state.
	Eddy Current		Eddy current accelerometers use an electrical current generated in conducting materials by fluctuating magnetic fields.
	Fiber Optic		Fiber optic accelerometers use a fiber optic sensor, particularly the Fiber Bragg grating (FBG), which measures the resulting wavelength shift from an applied mechanical load.
	Inductive		Inductive accelerometers use an inductive element with a moving core. The displacement of the mass due to the acceleration provides a variation of the inductance.
	MEMS		MEMS-based accelerometers use micro-electro mechanical system technology.
	Null-balance		In null-balance accelerometers, also referred to as servo force-balance accelerometers, the motion is detected and a force or torque is fed back that exactly cancels out the accelerating force or torque.
	Piezoelectric		Piezoelectric accelerometers use an electrical charge that is generated when stress is applied to a material, such as a crystal.
	Piezoresistive		Piezoresistive accelerometers measure the electrical resistance when a stress is applied to a material, such as a crystal.
	Resonance		Resonance accelerometers sense resonance generated by the inertia of a force to measure acceleration.
	Strain Gage		Strain gage accelerometers convert the inertia force of the mass into a strain measurement.
	Ultrasonic		Ultrasonic sensors use reflected or transmitted ultrasonic waves to detect the presence or absence of a target component. The output is Boolean; that is, the sensor merely detects whether the target is or is not within the detection range.
	Other		Other unlisted or proprietary type.
	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.

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Features

	Features
	Your choices are...
	Battery Powered		Batteries supply the main power for the device operation. This is not for backup supply.
	Corrosion Resistant		Corrosion-resistant alloys can be formulated for a wide range of aggressive well bore conditions. However, cost generally determines the viability of any particular completion design. Alloys with high chrome content are commonly used for tubing strings.
	Event Triggered		Device can be set to capture/log data when an event happens.
	Explosion Proof		The sensor is explosion proof.
	Filters		Devices are equipped with special signal processing or filtering (Butterworth, Bessel, etc).
	Integrated Electronics Piezo Electric (IEPE)		Integrated electronics piezo electric accelerometers conform to the IEPE standard and have a piezo device inside that isolates it from the outside environment. Proprietary names for the IEPE standard include ICP®, CCLD, Isotron®, Deltratron®, Piezotron®, and others.
	Internet-of-Things (IoT)		Internet-of-Things is a network of devices which communicate with one another allowing for data communication.
	Intrinsically Safe		Intrinsically safe (IS) is an adjective for equipment and wiring which is incapable of releasing sufficient electrical or thermal energy under normal or abnormal conditions to cause ignition of a specific hazardous atmospheric mixture in its most ignited concentration. The IS terminations and wiring may be brought into any hazardous location of any group classification for which it is accepted without requiring explosion proof housing or other means of protection.
	Radiation Hardened		Radiation-hardened devices are constructed of materials designed to withstand high-energy gamma radiation. Ratings are expressed in units such as permissible rads in total accumulated dose (TAD).
	Sealed		Sealed units provide constant operating conditions.
	Self Test / Diagnostics / Self Calibrating		The instrument has self-test or diagnostic ability.
	Self Generating		The device requires no external power supply for operation.
	Wireless		Wireless communication allows the device to be untethered from cables.
	Other		Other unlisted or proprietary features.
	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.

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Environment

	Maximum Shock		This is the maximum shock that devices must be able to handle. Products that are "typical" may not provide the maximum shock value explicitly. Use this value only when working with extremes.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Maximum Vibration		This is the maximum vibration that devices must be able to handle. Products that are "typical" may not provide the maximum vibration value explicitly. Use this value only when working with extremes.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Operating Temperature		The temperature ranges over which devices must operate.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.

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