{"id":443,"date":"2017-10-26T19:57:37","date_gmt":"2017-10-26T19:57:37","guid":{"rendered":"http:\/\/18.219.27.21\/?post_type=services&p=443"},"modified":"2021-02-16T09:50:32","modified_gmt":"2021-02-16T14:50:32","slug":"testing","status":"publish","type":"page","link":"https:\/\/www.arnoldmagnetics.com\/permanent-magnets\/capabilities\/testing\/","title":{"rendered":"Testing"},"content":{"rendered":"\n

Arnold’s Engineering and Technical team have access to wide range of specialized instrumentation and tools to accurately test your system’s performance. Testing capabilities include a full suite of magnetic,\u00a0physical and environmental tests.<\/p>\n\n\n\n

\n\n\n\n

MAGNETIC TEST CAPABILITIES<\/h2>\n\n\n\n
\n
\n

Magnetic Properties<\/strong>
Br, Hcb, Hci, Hk, Ms, BHmax, Recoil Permeability, and more. The primary tool used is a DC Hysteresisgraph. Values of Hci between 50 and 30,000 Oersteds can be successfully measured.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Magnetic Field Mapping<\/strong>
Linear, Planar and Rotary. Data and graphic output can be provided for objects up to approximately one cubic foot.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Magnetic Properties at high and low temperatures (-40 to 300 \u00baC)<\/strong>
Properties as above but tested at any temperature within the specified range.<\/p>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n\n\n

\n
\n

Fluxmeter measurements<\/strong>
Magnetic dipole moment, total field output and error angle measurements. Several measurement systems are available with coils up to 8\u2032 in diameter, from 6\u2033 to 96\u2033; highly flexible manually operated systems and automated systems.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Reversible Temperature Coefficients<\/strong>
Measured and calculated for any range desired within the specified temperature limits.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Gauss measurements<\/strong>
Single measurements at specified locations or measurements using C-fixtures, yokes or customer-specified design.<\/p>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n\n\n

AC magnetic measurements of toroids can also be performed.\u00a0Contact us<\/a>\u00a0for sizes and measurement options.<\/p>\n\n\n\n

\n\n\n\n

PHYSICAL AND ENVIRONMENTAL TEST CAPABILITIES<\/h2>\n\n\n\n
\n
\n

Salt Spray<\/strong>
This is an attribute test performed to ASTM B-117. Results are usually expressed as \u201cdays-to-failure.\u201d Photographs and micrographs can also be provided.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Autoclave, Uncoated Magnets<\/strong>
Often called the BCT test, it is a weight-loss test performed at 2 atmospheres (130\u00baC) and 100% RH. Duration is 96 hours, but can be adjusted per customer requirements.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Autoclave, Coated magnets<\/strong>
This is an attribute test looking for lack of failure at a specified test duration. Test conditions can be selected ranging from two atmospheres, 100% RH to HAST test conditions. A tape peel test can be performed at the end of the pressure testing.<\/p>\n<\/div><\/div>\n<\/div><\/div><\/div>\n\n\n\n

\n
\n

Extreme temperature<\/strong>
This is accomplished by cycling the magnets or assemblies between extremes of temperature. Our labs can test between -40 and 343 \u00baC with manual exchange between chambers or between -40 and 175 \u00baC within the same chamber.<\/p>\n<\/div><\/div>\n\n\n\n

\n

Physical Strength<\/strong>
Our Instron can be configured for tensile (pull), 3-point bend or for peel testing.<\/p>\n<\/div><\/div>\n\n\n\n

<\/div><\/div>\n<\/div><\/div><\/div>\n