ASTM C215 PDF
Standard Test Method for Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens. A non-destructive sonic method. Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens. All the Controls products ASTM C standard. Enter now!.
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Ultrasonic E-Meter MKII
Features of the HT Unit: Our extensive inventory is yet another way to keep you satisfied. See 4 more pictures. No other resonant frequency system includes an oscilloscope despite being strongly recommended in ASTM C paragraph 4. No items in cart. The original PCA design has been modified by changing to solid state circuitry and addition of a built-in cathode ray oscilloscope.
To us, complete customer satisfaction means:. Ease of use measurement system Connection to an High Temperature oven is possible Trigger level adjustable Option: Print 1 2 3 4 5 page sstarting from page current page.
The conditions of manufacture, the moisture content, and other characteristics of the test specimens see section on Test Specimens materially influence the results obtained. Search book title Enter keywords for book title search.
Ultrasonic E-Meter MKII | Qualitest
The value of the dynamic modulus of elasticity obtained by this test method will, in general, be greater than the static modulus of elasticity obtained by using Test Method C Features of the MK7 Unit: Remember me for one month. Geotest Instrument Corporation S.
Search Advanced Search Search Tips. Different computed values for the dynamic modulus of elasticity may result from widely different resonant frequencies of specimens of different sizes and shapes of the same concrete. Look through our website. Please login to your authorized staff account to use this feature.
Complete refund or credit will be issued for unused and unmarked items returned within 10 days of receipt. Process control Number of programs 5 with controller unit B standard Grindosonic Number of Asgm segments 4 with B standard Grindosonic Optional: No other units of measurement are included in this standard.
The oscilloscope confirms that peak reading on meter is actual resonance and not a harmonic. Frequency analysis FFT calculation for detections of multiple vibrations modes Selection of zones of interest by waveband filtering Oscilloscoop function for time domain analysis Graphic visualisation of frequency domain Technical Information: The oscilloscope verifies resonance because the meter alone also reaches high points on harmonics.
The apparatus consists essentially of a driver asm pickup circuit.
GrindoSonic HT System – HT-SYSTEM – Penn Tool Co., Inc
Electrical power is converted by the driver into mechanical vibrations and these vibrations are imparted to the specimen under test. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.
It is the responsibility of the user of this standard aetm establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
All claims must be made within 30 days of purchase. Click to View the GrindoSonic Brochure. Other systems offer an oscilloscope connection.
The Geotest Sonometer is the only system using a phono type cartridge as a pickup. USB memory stick connection Full spectrum data storage. This test method is intended primarily for detecting significant changes in the dynamic modulus of elasticity of laboratory or field test specimens that are undergoing exposure to weathering or other types of potentially deteriorating influences.