3535 查看數據表（PDF） - ASM GmbH

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产品描述 (功能)

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3535

LCR HiTESTER

ASM GmbH 

2

Automatically Balanced Bridge Circuit with Digital Control

■ EXT I/O

Externally control triggering and loading of measurement

conditions, and for automated lines, configure output signals

including comparator results and end-of-measurement signals

at the touch of a button.

EXT I/O Signals

● Outputs

• Internal DC Power (+5 V output)

• Comparator Results

• BIN (Classification) Measurement Results

• End-of-Measurement Signal

● Inputs

• External DC Power Supply (+5 to 24 V can be provided by

an external source)

• External Trigger Signal

• Selection of Panels for Loading

Timing Chart for EXT I/O Sequencing

The following chart shows the timing sequence of the trigger

(TRIG), end-of-measurement (EOM) signals and comparator

result signals from the EXT I/O connector.

Minimum trigger time

Minimum time from measurement

completion to next trigger

Circuit response time

Measurement time: 6 ms∗2

Previous test result Clear previous test result

Test result

∗ 1. α depends on the component and trigger delay.

* 2. Reference value with FAST measurement speed, Averaging OFF and Z measurement selected.

External Control using a PC

Both RS-232C and GP-IB interfaces are included for external

control of all functions (except Power ON/OFF of the 3535

main unit) from a computer.

■ RS-232C Interface

Transfer Method: Communications Method:Full Duplex,

Synchronization Method:Start-Stop Asynchronous

Transfer Speed: 9,600 or 19,200 bps

Data Length: 8 bits

Parity:

none

Stop Bit:

1 bit

Delimiter:

CR+LF or CR

Flow Control: none

Connector: 9-pin D-sub male, reverse wired

■ GP-IB Interface

Supported Standard: IEEE-488.1 1987

IEEE-488.2 1987 common (required) commands can be used.

Any voltage from 100 to 240 VAC

Keylock key prevents unintended operations

from inadvertent touching of display panel

GP-IB Interface

EXT.I/O

RS-232C Interface

3535 Rear View

Measurement Principle Automatically Balanced Bridge Circuit with Digital Control

The measurement signal is generated by a primary oscillator and applied to the component (DUT). The LOW terminal

voltage is measured and used to control the phase and amplitude of a secondary oscillator so as to maintain a balanced

condition (LOW terminal voltage being zero). The impedance Z and phase angle θ of the DUT

are determined according to the amplitude and

phase required to maintain the secondary

oscillator in its balanced condition.

Rout HIGH

LOW Rf

Zdut

Primary Oscillator

Secondary Oscillator

CPU Bridge Circuit

CPU

Amplitude and Phase Control

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