Metrology & Position Measurement in Bangladesh

Metrology & Position Measurement from Renishaw, supplied, installed and supported in Bangladesh by Vvon Technologies.

21 products from 1 manufacturer: Renishaw.

Products

• XM-60 multi-axis calibrator — Renishaw: A laser system that measures errors in six degrees of freedom along a linear axis from a single set-up. It captures linear, horizontal and vertical straightness, pitch, yaw and roll together, so all geometric errors in an axis come from one measurement run.
• XM-600 multi-axis calibrator — Renishaw: The XM-600 delivers the full six degrees of freedom capability of the XM-60 system when used with CARTO software, and adds communication with Renishaw UCC controllers. It suits facilities that run both machine tools and coordinate measuring machines.
• XR20 rotary axis calibrator — Renishaw: A wireless calibrator for rotary axes on machine tools, stages and jigs. An integrated angular retroreflector sits on a servo controlled axis whose position is read by a high accuracy encoder machined directly onto the main bearing, and it works with XL-80 and XM-60 lasers.
• QC20 ballbar — Renishaw: A telescoping ballbar with precision balls at each end that measures small changes in radius while a machine tool follows a programmed circular path. It shows up geometric, dynamic and play related positioning errors in a test that takes ten to twenty minutes.
• RESOLUTE optical absolute encoder series — Renishaw: A true absolute optical encoder for linear, partial arc and rotary axes. Position is known at switch-on without any movement, and low sub-divisional error with very low jitter gives smooth velocity control in demanding motion systems and nano-positioning stages.
• EVOLUTE optical absolute encoder series — Renishaw: A true absolute optical encoder built on RESOLUTE technology but using a 50 um scale period, which gives wider installation tolerances and better resistance to contamination. Position is available immediately at start-up without any axis movement.
• QUANTiC optical incremental encoder series — Renishaw: A compact incremental open optical encoder with digital or analogue output. It has wide installation and operating tolerances, built-in calibration functions and linear or rotary scale options, which makes it straightforward to fit on production machinery.
• TONiC optical incremental encoder series — Renishaw: A compact non-contact incremental encoder for highly dynamic precision motion. Filtering optics in the readhead give very low jitter and low sub-divisional error, and the external Ti interface takes the resolution down to 1 nm for linear, partial arc and rotary axes.
• VIONiC optical incremental encoder series — Renishaw: Renishaw's highest performing incremental open optical encoder, giving digital position feedback direct from the readhead. Filtering optics and on-board interpolation produce very low sub-divisional error without needing an adaptor or separate interface unit.
• ATOM DX optical incremental encoder series — Renishaw: Renishaw's smallest incremental optical encoder with digital output taken straight from the readhead. Filtering optics and interpolation are built into the miniature body, which suits space constrained instruments and stages where performance cannot be reduced.
• ATOM optical incremental encoder series — Renishaw: A miniature non-contact optical incremental encoder for linear and rotary applications where space is tight. Digital output comes from a choice of high-speed interpolator interfaces, and an integrated LED shows signal integrity during installation.
• FORTiS enclosed optical absolute encoder series — Renishaw: A sealed linear absolute encoder that puts RESOLUTE technology inside a rigid extrusion for use in harsh environments such as machine tools. Tuned mass dampers in the readhead raise vibration resistance, and the non-contact design avoids mechanical wear.
• ASTRiA inductive rotary absolute encoder series — Renishaw: An inductive rotary absolute encoder that reads a multi-track scale on a passive rotor using electromagnetic induction. Because it needs no line of sight it tolerates dirt and oil, and built-in alignment flexures self-centre the rotor so no calibration is required.
• HS20 long range laser encoder — Renishaw: A laser head that works with an external linear optics kit to form a non-contact interferometric encoder for long axes. It gives sub-micron position feedback on large machine tools and removes the hysteresis, backlash and cyclic errors of rack and pinion or ballscrew feedback.
• RMAP multi-axis periscope — Renishaw: A periscope that lets three RLD10-X3-DI differential interferometer heads measure linear position, pitch and yaw along one axis of a high performance XY stage. The small beam footprint keeps the target mirrors light, and it bolts to a vacuum chamber or metrology frame.
• RLD10 laser encoder detector heads — Renishaw: Every RLE laser interferometer encoder system is built from an RLU laser unit together with one or two RLD10 detector heads, chosen to suit the application. The detector head is the core of the optical measuring system and holds the interferometer optics, a unique multichannel fringe detection system and beam steering mechanisms. Renishaw offers three interferometer configurations, RLD10 plane mirror, RLD10 retroreflector and RLD10 differential, plus an RLD10 with no internal interferometer. Beam output orientation is chosen for each axis, except on the differential interferometer head.
• RLI20-P laser encoder interface for Panasonic — Renishaw: The RLI20-P links a Renishaw laser encoder system to a Panasonic MINAS A5 series controller. It takes the 1 Vpp analogue quadrature signals from the laser encoder and passes them through a high speed interpolator before outputting an incremental position reading in RS485 format. The internal position update rate is 100 MHz and the sub divisional error contribution is quoted as ±0.5 nm.
• RLU compact laser unit with fibre optic delivery (RLU10 / RLU20) — Renishaw: Renishaw's RLU laser units bring the performance of a displacement interferometer together with the installation ease normally associated with tape and glass scale encoders. Supplied in single or dual axis form, an RLU contains a class 2 helium neon (HeNe) laser source, stabilisation electronics, a fibre optic launch and axis position feedback electronics, and it is combined with one or two RLD detector heads to make up an RLE system. The RLU10 holds laser frequency stability within ±50 ppb over any one hour period, which suits the majority of in air applications, while the RLU20 holds ±2 ppb over the same period for the majority of vacuum applications. Both units support velocities up to 2 m/s and a vacuum wavelength stability of ±0.1 ppm over three years.
• RPI30 parallel interface — Renishaw: The RPI30 accepts differential analogue 1 Vpp sine and cosine signals, interpolates by 4096 and provides an output in parallel format with up to 36 bits of position data. Used with a double pass plane mirror interferometer system, whose sinusoid fundamental period is nominally 158 nm, this yields a least significant bit of 38.6 picometres at velocities up to 2 m/s. Active lissajous correction can be enabled to compensate for DC offset and AC mismatch coming from the laser encoder, improving the sub divisional error to ±0.1 nm at low velocities. Two axis position and status are carried over an LVTTL (3.0 V) compatible bus, and a diagnostics connection allows remote download and analysis.
• RSU10 USB interface — Renishaw: The RSU10 accepts a 1 Vpp sine and cosine signal from an RLE system, interpolates by 16,384 and delivers a position reading through a USB port. That interpolation gives signal resolution down to 9.64 picometres at a velocity of 1 m/s. Measurement data works with Renishaw's established LaserXL and QuickViewXL calibration software, which suits users who need to view and analyse real time dynamic measurement data. A software development kit with a maximum update rate of 20 Hz is supplied with each unit, and a TPin trigger input lets data capture begin on receipt of an externally generated signal.
• XC-80 compensator and sensors — Renishaw: Air temperature, air pressure and relative humidity all shift the wavelength of light from a laser interferometer, and the XC-80 compensator corrects for that automatically. Its intelligent sensors process readings at source, and the compensator uses them to convert the nominal laser wavelength into a true value against which the interferometer read-out is adjusted, with no user intervention needed. Updates can happen automatically every seven seconds, shown by LED status lights, and the integral USB connection supplies power so no separate PC interface or power supply is required. Up to three material temperature sensors can be attached so linear measurements are normalised to a standard material temperature of 20 °C, and the standard 5 m sensor cables are detachable and can be screwed together for longer machines.

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