922936 Solartron Metrology Solartron Metrology Differential Transformer, ±3mm Stroke
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| Producent | Solartron Metrology | | Part Number | 922936 (922936) |
| Specifications | Solartron Metrology Differential Transformer, ±3mm Stroke |
| Unit Price | 156,77 EUR |
| Minimum Order Quantity | 1 |
| Tariff No. | |
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| Description | Energising Voltage Range1 → 10 Vrms Maximum Operating Temperature+85°C Minimum Operating Temperature-40°C Overall Width42.5mm Response Time1.5 ms Sensitivity118 mV/V/mm @ 1kHz, 128 mV/V/mm @ 20kHz, 130 mV/V/mm @ 10kHz, 134 mV/V/mm @ 2kHz, 136 mV/V/mm @ 5kHz Stroke±3mm Product Details Miniature ac Energised Inductive Displacement Transducer When the primary winding is connected to an AC supply, current starts to flow in the secondary coils. The secondary coils are connected in series opposition so that two voltages have opposite phase so when the core is in the centre position then voltages of equal magnitude but opposite phase will be induced in each secondary coil and the output is zero. As the core is moved in one direction the voltage in the corresponding secondary coil increases while the other coil experiences a complementary voltage reduction. The effect is a transducer voltage output that is proportional to displacement. Knowledge of the magnitude and the phase of the output with respect to the excitation signal allows one to deduce the position and direction of the core motion from the null position. Low cost solutions to displacement measurementFriction free operation with reduced guidance accuracyStainless steel body and push rod SM1 SM3 Calibration Load (Ω) 100k 100k Primary Resistance (Ω) 102 69 Secondary Resistance (Ω) 204 200 Residual Voltage @ Zero 0.3% FSD (typ.) 0.3% FSD (typ.) Lead Length (mm) 300 300 Operating Temp. (°C) -40 to +85 -40 to +85 Non-Linearity 0.3% 0.3% Linear Variable Differential Transformers (LVDT) These devices comprise a movable nickel iron core and three coils - one for energisation and two for pick-up. They need to be driven by a sine wave to produce an output amplitude and phase directly proportional to the position of the core with respect to the pick-up coils. A phase sensitive detector is required to demodulate the output signal. The main advantages of LVDTs are; No wear problems as with potentiometersInfinite resolution, high accuracy and linearityNo friction introduced into the measured systemAvailable in ranges from ±1mm to ±50mm Note RS LVDT's datasheet Stock No. 232-4049 is available on request. |
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