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Probes
Probes manufactured by Renishaw can be classified into two main categories: touch-trigger (TP20 si TP200) and analogues used in continuous scanning (SP-25,SP-600,SP-80)
TP20
The TP20 is a compact 5-way, or 6-way, kinematic touch-trigger probe system. The two-piece design, comprising probe body and detachable stylus module(s), connected using a highly repeatable magnetic kinematic coupling. This provides the facility to change stylus configurations either manually or automatically without the need for requalification of the stylus tips, thereby giving significant time savings in inspection routines.
Modules offering a range of trigger forces allow the probe performance to be best matched to the measurement task. A set of probe extensions is also available, as is a 6-way module. The stylus mounting thread accepts styli from the Renishaw M2 range.
The TP20 system is easily retrofitted and is compatible with existing touch trigger probe interfaces, extensions and adaptors.
| Sense directions |
All modules except 6W 6W |
±X, ±Y, +Z ±X, ±Y, ±Z |
| Suitable interface | PI4-2, PI7-2, PI200, UCC | |
| Pre-travel variation |
LF SF / EM1 / EM2 MF EF 6W |
±0.60 µm (± 0.000023 in) ±0.80 µm (± 0.000032 in) ±1.00 µm (± 0.000039 in) ±2.00 µm (± 0.000079 in) ±1.50 µm (±0.000058 in) |
| Unidirectional repeatability |
LF / SF / EM1 / EM2 MF EF 6W |
±0.35 µm (± 0.000014 in) ±0.50 µm (± 0.000020 in) ±0.65 µm (± 0.000026 in) ±0.80 µm (± 0.000032 in) |
| Repeatability of stylus changing |
MCR20 Manual |
±0.50 µm (± 0.000020 in) ±1.00µm (± 0.000040 in) |
| Stylus range | M2 | |
| Mounting method | M8 thread |
| Module | Application | Trigger forces | Stylus lengths | |
|---|---|---|---|---|
| SF - Standard force |  |
Suited to the majority of applications |
XY: 0.08 N Z: 0.75 N Stylus: 10 mm |
10 – 50 mm GF |
| LF - Low force |  |
Low trigger forces applications – e.g. rubber seals |
XY: 0.055 N Z: 0.65 N Stylus: 10 mm |
10 – 30 mm |
| MF - Medium force |  |
Where a higher trigger force than standard is required |
XY: 0.1 N Z: 1.9 N Stylus: 25 mm |
10 – 60 mm |
| EF - Extended force |  |
Large stylus assemblies or where vibration causes spurious ‘air’ triggers |
XY: 0.1 N Z: 3.2N Stylus: 50 mm |
10 – 60 mm |
| 6W - 6-way |  |
Measurement in the –Z direction – e.g. undercuts |
XY: 0.14 N Z: 1.6N Stylus: 10 mm |
10 – 50 mm |
| EM1 STD - 50 mm extension |  |
Majority of applications requiring a 50 mm extension |
XY: 0.08 N Z: 0.75 N Stylus: 10 mm |
10 – 50 mm |
| EM2 STD - 75 mm extension |  |
Majority of applications requiring a 75 mm extension |
XY: 0.08 N Z: 0.75 N Stylus: 10 mm |
10 – 50 mm |
TP200
- Strain-gauge technology offers excellent repeatability and precision 3D form measurement.
- Zero reseat errors.
- No lobing effect.
- 6-way measuring capability
- Stylus reach of up to 100 mm (GF styli)
- Rapid probe module changing without the need to re-qualify the stylus tips
- Life of >10 million triggers
The TP200 probe uses micro strain gauge transducers to deliver excellent repeatability and accurate 3D form measurement even with long styli.
The sensor technology gives sub-micron repeatability and eliminates the lobing characteristics encountered with kinematic probes. The solid state ASIC electronics within the probe ensure reliable operation over millions of trigger points.
The TP200B uses the same technology as TP200 but has been designed to have higher tolerance to vibration. This helps to overcome the problem of ‘air’ trigger generation which can arise from vibrations transmitted through the CMM or when using long styli with faster positioning speeds.
Please note that we do not recommend the use of TP200B with the LF module or cranked/star styli.
| Principal application | DCC CMM where high accuracy is required. | As TP200 but where ‘air’ trigger events occur. |
| Sense directions | 6-axis: ±X, ±Y, ±Z | 6-axis: ±X, ±Y, ±Z |
| Unidirectional repeatability (2s µm) |
Trigger level 1: 0.40 µm (0.000016 in) Trigger level 2: 0.50 µm (0.00002 in) |
Trigger level 1: 0.40 µm (0.000016 in) Trigger level 2: 0.50 µm (0.00002 in) |
| XY (2D) form measurement deviation | Trigger level 1: ±0.80 µm (0.000032 in) Trigger level 2: ±0.90 µm (0.000036 in) |
Trigger level 1: ±1 µm (0.00004 in) Trigger level 2: ±1.2 µm (0.000047 in) |
| XYZ (3D) form measurement deviation | Trigger level 1: ±1 µm (0.00004 in) Trigger level 2: ±1.40 µm (0.000056 in) |
Trigger level 1: ±2.50 µm (0.0001 in) Trigger level 2: ±4 µm (0.00016 in) |
| Repeatability of stylus change | With SCR200: ±0.50 µm (0.00002 in) max. Manual: ±1 µm (0.00004 in) max. |
With SCR200: ±0.50 µm (0.00002 in) max. Manual: ±1 µm (0.00004 in) max. |
| Trigger force (at stylus tip) | XY plane (all modules): 0.02 N Z axis (all modules): 0.07 N |
XY plane (all modules): 0.02 N Z axis (all modules): 0.07 N |
| Overtravel force (@ 0.50 mm displacement) |
XY plane (SF/EO module): 0.2 N to 0.4 N XY plane (LF module): 0.1 N to 0.15 N Z axis (SF/EO module): 4.90 N Z axis (LF module): 1.60 N |
XY plane (SF/EO module): 0.2 N to 0.4 N XY plane (LF module): 0.1 N to 0.15 N Z axis (SF/EO module): 4.90 N Z axis (LF module): 1.60 N |
| Weight (probe sensor and module) | 22 g (0.78 oz) | 22 g (0.78 oz) |
| Maximum extension (if on a PH10 series head) | 300 mm (11.81 in) | 300 mm (11.81 in) |
| Maximum recommended stylus length (M2 styli range) | SF/EO module: 50 mm (1.97 in) steel to 100 mm (3.94 in) GF LF module: 20 mm (0.79 in) steel to 50 mm (1.97 in) GF |
SF/EO module: 50 mm (1.97 in) steel to 100 mm (3.94 in) GF LF module: 20 mm (0.79 in) steel to 50 mm (1.97 in) GF |
| Mounting method | M8 thread | M8 thread |
| Suitable interface | PI200, UCC | PI200, UCC |
| Stylus module changing rack |
Automatic: SCR200 Manual: MSR1 |
Automatic: SCR200 Manual: MSR1 |
| Stylus range | M2 | M2 |
There are three modules available, with 2 different overtravel forces.
| Module | SF (standard force) | LF (low force) | EO (extended overtravel) |
|---|---|---|---|
| Application | General use. | Small diameter stylus balls or where minimum force is essential. | Extra overtravel to enable the CMM to stop safely from higher probing speeds. |
| Comments | Styli up to 100 mm long and ball diameter > 1 mm. | Balls less than 1 mm diameter. |
Same overtravel force as SF. Extra 8 mm of overtravel in probe Z axis. |
Analogues used in continuous scan
SP- 25
SP- 80
SP- 600
