Surface measurement

Compact Ultrasonic Gauge

The Delta™ TT-300 is a compact ultrasonic gauge designed for Wall Thickness Measurement measurement on metallic and non-metallic materials such as aluminium, titanium, plastic, ceramics and glass. The adjustable measurement frequency allows the connection of specific probes, for example  the 10 MHz probe with high detection sensitivity.

Universal wall thickness gauge with external probe

The Delta TT-100 is an universal gauge for metallic and non-metallic materials, e. g. steel, aluminium, grey cast iron, glass, ceramic, plastics or glass. The measuring procedure requires two adjacent parallel surfaces.

The gauge is chracterized by high accuracy and with an easy-to-use menue structure. Five different sound velocities can be stored in order to facilitate the measuring of different materials. The device can alos be used for determining the sound velocity.

The measurement process is simple: after adjusting the sound velocity and applying coupling gel the probe will be placed on the measuring spot. A symbol in the display signals a successful pairing  and the wall thickness can be read. For the storage of the readings 10 spaces are available.

For measurements on hot steel surfaces the Delta TT-120 can be used. A special high-temperature probe allows measurements up to 300 °C. A high-temperature coupling gel is required.

If higher accuracy is needed, we recommend the Delta TT-130, with a resolution of 0.01 mm (TT-100: 0.1 mm).

Portable hardness testers for testing according to DIN EN ISO 16859

The modern portable hardness testers Impact TH-170, TH-172 and TH-174 provide for a price-conscious, yet accurate solution for hardness testing on site, in the workshop or in production. The devices measure accurately and reliably.

With the automatic identification of impact direction the operation is very easy. It can be used in any position, even upside down. A data memory stores up to 270 values. The measurement data can be transferred to a PC or printer via a USB interface. The devices are equipped with replaceable batteries for 16 hours of continuous operation.

Roughness tester with exchangeable probe

The TR 200 is a precision surface roughness tester with exchangeable probe for fast and accurate determination of surface roughness according to Ra, Ra and 11 more roughness parameters. Due to its small dimensions it can be used both in production and in the laboratory. The simple, menu-driven handling as well as high repeatability draw are key Features of the TR-200.

After pressing the start button the micro probe scans the surface within a few seconds and then immediately shows digitally in accordance with the preselected cut-off wavelength (cut-off length) either the Ra or Ry.

The graphic display Shows both the numerical values of the roughness and the material ratio curve. The measured data allows the calculation of 13 different roughness figures (Ra, Rz, Ry, Rq, Rt, Rp, Rmax, Rm, R3z, S, Sm, Sk, Tp).

Portable roughness testing Ra and Rz

The small portable surface roughness tester TR – 110 has been designed especially for the fast and accurate measurement on the shop floor. It works on the same piezoelectric microprobe principle as is used for high precision labor equipment. The ease of use as well as the high repeatability are special features of the TR – 110.

After pressing the start button the micro probe scans the surface within a few seconds and then immediately shows either the value Rz or Ra. To determine both parameters Ra and Rz the surface needs to be scanned only once. The integrated slide can be slid over the probe to protect the diamond tip when not in use. In addition, the 1.5 – minute switch-off mode protects the lithium ion battery against unnecessary discharge.

Pore detection in electrically insulating layers

The porosity detector series DC Compact are used for easy detection of pores and flaws in electrically insulating layers (for example lacquers, enamels, plastic coatings) on all metals or concrete. DC Compact instruments are particularly useful in the production and out in the field, eg. for pipelines, storage tanks or enameled construction parts. The portable porosity detector DC Compact consists of a fully insulated plastic housing and a the high voltage probe incl. brush. Using a special strap, the device can easily be carried, so that both hands are free for testing.

The porosity test is performed with a low-energy high DC voltage. Depending on the device type, the test voltage can be adjusted continuously from 0 to 15 kV or 30 kV. The test voltage is determined exclusively by the thickness of the layer to be tested. Therefore the film thickness should be measured before testing in order to prevent high voltage damage. A reference table which is part of the delivery content helps to determine the best test voltage which depends on the layer thicknesses.

The test procedure is performed by slowly pulling the brush with ca. 30 cm/s over the layer to be tested. A defect is indicated by sparkover and additionally by an audible and visual signal. The sensitivity is adjustable. For optimum test results different brushes are available like flat brushes and round brushes for internal and external testing on tubes.

Roughness testing according to Ra, Rz, Rq and Rt

The PHYNIX roughness tester KR – 110 is characterized by high accuracy, a wide range of applications with large measuring range, easy operation and a stable construction. It is used to determine the surface roughness according to Ra, Rz , Rq and Rt and can be used for measurements on all types of metals and non-metals.

During the measuring process the sensor moves linearly along the traverse length. At the same time, the probe tip is slowly moved up and down according to the roughness profile. These movements are converted into electric signals, amplified, filtered and digitized. With the help of a digital signal processor, the digital voltage values ​​are converted into the desired parameters Ra, Rz, Rq and Rt and finally displayed.