The capacitive displacement meter ST-3571A measures the minute displacement of metals etc, using a non-contact method and is a device that outputs voltage with high precision in proportion to the displacement. Especially, the extra fine probe is suitable for measuring precise high-speed disks, precision motors, spindles, and high-speed vibrators on high sensitive and broadband. It is also suitable for measuring and analyzing with oscilloscopes and FFT analyzers.

Features

	Extra fine probes allow the measurement of compact object displacement. (The electrode diameter of an extra fine probe is Φ0.2mm.)
	Measurements are performed using a high-resolution and precise non-contact method.
	Accurate analog voltage, which is proportional to the displacement, is outputted.
	The bandwidth is wide (DC to 10 kHz), with a fast response time.
	The bandwidth is converted by a switch.
	Each metal can be measured under the same conditions with no influence from a magnetic field or magnetic substance.

Performance

(With Probe ST-0702A)

Type of measurement Capacitive Measuring range 75 ±25mm Output voltage +10V to -10V (F.S) Sensitivity 0.4V/mm Accuracy ±2% F.S (23 ±5°C, less than 80% R.H) Offset function Approximately ±10% (F.S) Bandwidth DC to 10kHz (-3dB) (can be switched to approximately 5kHz, 1kHz, 500Hz and 100Hz) Output resistance Approximately 50W Power source 90VAC to 250VAC, 50/60Hz Power consumption 24W ±20% (with AC100V) Operation environment 0 to 40°C, less than 85% R.H Dimensions Approximately 80W x 170H x 320L (mm) Weights Approximately 3kg Accessories Power cord(1), Fuse(2), Coaxial cable(1), Ground lead (1), Instruction manual(1) Display Over range Alarm DC30V, 1A (input resistance) Alarm will close when on the + side of over range.

Probes for Displacement Meters

Probe ST-0702A (standard) ST-0702J2 (custom-made) ST-0742A2 (custom-made) Image Measuring range 75 ±25mm 100 ±50mm 100 ±50mm Sensitivity 0.4V/mm 0.2V/mm 0.2V/mm Accuracy ±2% F.S ±2% F.S ±2% F.S Electrode dimension Φ0.2mm Φ0.2mm 0.1 x 0.35mm (Square) Dimensions (Φ1 x 5)+(Φ2.1 x 5)+(Φ8 x 10)+(Φ16 x 74) mm (Φ2.1 x 10)+(Φ2.1 x 5)+(Φ8 x 10)+(Φ16 x 74) mm (Φ3 x 10)+(Φ8 x 10)+(Φ16 x 74) mm Cable length 1.5m 1.5m 1.5m Connector Multi-prong, round shape Multi-prong, round shape Multi-prong, round shape Weights Approximately 100g Approximately 100g Approximately 100g

Note) The combinations of probe and equipment are specified. Changes in the measurement range must be custom-written. We also design and make probes that are not listed above. Probes are sold separately.

[Measurement of 1 inch motor]	[Displacement and output voltage]
(ST-0742A2 Electrode dimension 0.1 x 0.35mm)