Profile Meter

Profile Meter


an instrument for measuring the irregularities of a surface; the readout of the measurement results is a scale giving one of the parameters used to evaluate these irregularities—surface roughness. The first profile meters appeared at almost the same time as profilographs.

In profile meters, a signal is received from a sensor with a diamond stylus that moves perpendicularly to the surface being measured. After electronic amplification, the signal is integrated to give an averaged parameter, which quantitatively characterizes the surface irregularities over a given length. The most common profile meters have a fixed integration run equal to the length of the sensing trace and read out on a scale after the trace is completed. Some profile meters have a variable integration run that is less than the length of the sensing trace and read out as the stylus moves over the surface. The error in readings varies from ± 10 to ± 25 percent.

The conversion of oscillations from the diamond stylus into voltages may be achieved by several methods. In the USSR, profile meters with mechanotron converters are produced by the Kalibr Factory; they read out an arithmetic average deviation of the surface profile (Ra) within limits of 0.025 to 5 microns and with an error of ± 16 percent for an integration run of 3.2 mm. This instrument may be used to measure inner surfaces with diameters of 6 mm or greater.

Further improvements in profile meters will involve expansion of the number of averaged vertical and horizontal readings and the fitting of devices that analyze harmonic components to form a curve characteristic of the surface irregularities.


See reference under .


References in periodicals archive ?
The subject of this procurement procedure is the purchase of a profile meter in accordance with the technical specifications in Annex 1 to the HS.
We have done testing with a profile meter (profilometer) to see what the peak counts per inch were while blasting.
Perhaps highest on the profile meter is a multi-faceted project from IMX producers Jan Miller and Chris Zimmer that will spring four or five low-budget features out of a single concept.
Customers can access FIB (Focused Ion Beam) images, a profile meter and a variety of optical and electrical measurements of their samples the same day greatly reducing the cycle time for process development.
Digital water Flow Meter-cum-Totaizer & Digical water Profile Meter for vanous pumps at PNBE, RJP8 & kWX and operation maintenance of these plants and treatment of water for five years EMD value : INR 244520 Opening date : 29 Jan 2018
SeCaP can be packaged as a full bore, non intrusive 0-100% water cut monitor, a level profile meter for a separator or oil storage vessel, a water level indicator or a single-point water cut meter.
s) purchase: Profile meter, According to awarding documentation, Whose estimated value is ron 215,000 (vat excluded).
load profile meter, multifunction meter (RLM), mounted housing or rack-mounted housing
Contract award: digital electronic load profile meter for billing metering facilities in the high-voltage grid for 50hertz transmission gmbh.
Blue Cross is making four LifeScan glucometers available to members: ONETOUCH Profile Meter features simple testing, a 250-test memory, insulin-dosage information and additional features that assist the diabetic in identifying glucose trends; SureStep Meter combines a touchable test strip with a large-letter display for those with vision or dexterity difficulties; ONETOUCH Basic Meter offers basic features with quick, accurate results; FastTake is a portable monitor that takes small blood samples and provides results in 15 seconds.
One or more framework agreements for views on deliveries of electronic load profile meters with and without tariff control and corresponding modems according to Technical Specification Electronic load profile meter and modems from 02.
Other recent installations improve quality control and inspection and include instantaneous profile gages supplying continuous profile measurements, shape and profile meters, and automated surface inspection.

Full browser ?