MTI Application Note: Testing for Connector Failure Due To Vibration or Shock GalleryMTI Application Note: Testing for Connector Failure Due To Vibration or Shock
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MTI Application Note: Testing for Connector Failure Due To Vibration or Shock
Testing for Connector Failure Due to Vibration or Shock Mobile Communications Equipment Needs Reliable Connectors That Will Not Disconnect with Shock or Vibration Introduction A large multinational company approached MTI to provide a sensor capable of measuring displacement that also wouldn’t load the target (connector). Shock and vibration testing would span 2-15G and the target connectors were very small. Application MTI’s 2100 optical displacement sensor system is ideal for this kind of application because very small probes can be used and they measure displacement via reflected light. [...]
TESTING CHARGE AMPLIFIER GAIN AND FREQUENCY RESPONSE WITH A SIGNAL GENERATOR
[Application Note 40518] Piezoelectric transducers produce small electrical charges in response to pressure. Their sensitivity, ruggedness, and stability at high temperatures make them an essential building block of many accelerometers and pressure sensors. Applications include turbine vibration measurement (accelerometers) and combustion dynamics monitoring (pressure sensors). Typically, the high-impedance charge output produced by a piezoelectric transducer must be conditioned and amplified before transmission across system cabling to the data acquisition and measurement instrumentation. This conversion is accomplished with a device called a charge amplifier. Problem Over time, a charge amplifier’s signal response can drift. Damage to the charge amplifier or associated [...]
MTI Whitepaper: Easy Roller Gap Measurement Ensures Calendering Success GalleryMTI Whitepaper: Easy Roller Gap Measurement Ensures Calendering Success
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MTI Whitepaper: Easy Roller Gap Measurement Ensures Calendering Success
Easy Roller Gap Measurement Ensures Calendering Success Many roll-to-roll finishing processes typically use a calender, or series of hard pressure rollers, to deliver smooth, high-quality products of plastic, textile, or paper (Fig 1). Ensuring a consistent material thickness, however, depends on the ability to monitor, and maintain, a precise gap between rollers. This application note describes a quick and easy means for roller gap measurement Problem Establishing a roller gap and checking for parallelism across roller width can be a slow and cumbersome procedure. Manual measurement requires multiple sized feeler gauges which can introduce errors. Misinterpreting [...]
THICKNESS INFORMATION OF COMPOSITE MATERIALS
Composite materials consist of two or more materials which include a substrate or base material such as paper, cotton cloth, or glass cloth along with a resin or adhesive such as epoxy, melamine, or silicone. To make a thermoset laminate, the base material is coated with the adhesive so that layers of material can be pressed under heat and pressure into sheet form. The Problem: Composite material thickness needed to be verified prior to forming or machining. Due to the size of the sheets typical measurement techniques were not suitable. A consistent method to accurately measure the board thickness [...]
TIRE TREAD INSPECTION WITH 1D LASER SENSOR
Tire manufacturers wants to satisfy their customers, and protect themselves from liabilities, manufacturers are moving to 100% tire inspection for defects and abnormalities. Defects not only cause potential safety issues but they can also introduce unwanted vibration into the vehicle suspension system. Belts can be overlapped, or not cover the complete tire surface, causing weak or bubbled areas and imbalances. The tread depth can be too shallow, leading to decreased service life. An uneven tire can cause excessive runout and vibration. MTI was approached by a major manufacturer requesting a solution to measure tread depth, runout and blistering. They [...]
Torque Converter
Industry Automotive Applications Torque Converter Measurement Type Surface Description Since minute defects in the torque converter casing wall thickness can result in unacceptable and dangerous torque converter expansion, a precision measurement system was needed to measure the impeller hub displacement and thus the torque converter axial displacement. An AC dynamometer would be required to spin the torque converter at a high rate of speed while a fast response hydraulic system is needed to pressurize the converter to pressures up to 150 psi. MTI’s MicroTrak laser sensor was selected because it offered [...]
FIBER OPTIC PROBES MEASURE STATOR BAR VIBRATION
[Application Note 11718] One of the primary concerns in large generator design is vibration. Excessive vibration can lead to premature breakdown of insulation and other materials, ultimately resulting in early failure of the generator itself. The Problem A leading manufacturer of power generating equipment required a sensing system able to measure stator bar vibration in a partial generator mockup. Specifically, the company’s multi-day testing program demanded a sensing system that was immune to the large magnetic field generated by live stator bars capable of withstanding high heat built up from prolonged testing, and compatible with a proprietary stator bar [...]
A Comprehensive Guide to Non-Contact Sensors and Their Applications GalleryA Comprehensive Guide to Non-Contact Sensors and Their Applications
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A Comprehensive Guide to Non-Contact Sensors and Their Applications
Sensors, both contact and non-contact, are crucial devices that allow the monitoring, detection, and reaction to conditions in an environment or within a process or piece of equipment. While myriad types of sensors exist and are designed to monitor varying conditions, all of them can be characterized as being one of two types — contact sensors and non-contact sensors. We’ll focus on the latter, diving into different technologies, types, and applications of non-contact sensor technology; but first, let’s explore what differentiates contact and non-contact sensors. Contact vs. Non-Contact Sensors: What’s the Difference? Measuring, monitoring, or detecting a particular condition [...]
MTI’s Wireless Gap Measurement Probe System Is Ideal for Rotating Machinery GalleryMTI’s Wireless Gap Measurement Probe System Is Ideal for Rotating Machinery
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MTI’s Wireless Gap Measurement Probe System Is Ideal for Rotating Machinery
The Accumeasure capacitance probe system offers major improvement over conventional eddy current probes; network up to four probes per system to deliver rich geometrical in-situ measurements in a variety of industry standard formats. Lockport, IL—June 28, 2022—MTI Instruments, a US-based manufacturer of advanced test and measurement equipment, announces the introduction of its Accumeasure Wireless Gap Measurement Probe System. The system consists of up to four, battery-powered, wireless capacitance probes paired via Bluetooth to their receiving device. The wireless capability and compact form factor of the battery-powered probes are designed specifically to measure gap in difficult-to-reach or [...]