Products

FM wave carrier Telemetry System TT-91/TR-90/TR-87

TT-91/TR-90/TR-87Designed for dynamic strain measurements on a rotating or moving test object. The system consists of transmitter (TT-91) and receiver (TR-90 or TR-87). The transmitter (TT-91) is installed directly on the test object. It rotates or moves together with the test object and transmits measured data in FM modulation. The data received by the receiver are demodulated and output as analog signal. As the transmitter and receiver are separated each other, each can be freely located.


Features

    Transmitter TT-91

  • Small and light
  • No wireless-licensee is required because of a very weak electric wave used.
  • Possible transfer of data with good quality and little noise owing to the use of FM wave.

    • Receiver TR-90

  • AC/DC dual power system
  • Digital indication of receiving frequency for easy discrimination in multi-channel use
  • Output voltage is indicated in both of digital value and level meter
  • No projected part in front panel to protect settings against an operation by mistake
  • Receiving level is indicated by LED

    • Receiver TR-87

  • Miniature
  • Digital indication of receiving band and level
  • DC12V power source and low power consumption

Specifications

Type Transmitter TT-91
Number of measuring points 1
Applicable gauge resistance 120~1000Ω
Measuring range 3 ranges of ±2500, ±5000, and ±10000×10-6 strain
Transmitting frequency 16 steps within 75~90MHz
Dimensions 45(W)×9(H)×20(D)mm
(excluding projected parts)
Weight 20gr or less
Current consumption 120Ω bridge 59mA max.
350Ω bridge 43mA max.
Type Receiver TR-90
Receiving system Superhetrodyne
Receiving frequency 75~90MHz
Frequency response DC~3kHz
Dimensions 40(W)×140(H)×266(D)mm
Weight 800 g
power supply AC90~250V 10.5VA MAX
DC11~16V 0.25A MAX

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