Total Voting Rights

Oxford Instruments plc - Voting Rights and Capital Update

The following notification is made in accordance with the FSA's Disclosure and
Transparency Rules.

Following the allotment of shares during the month the Company's issued share
capital, as at the close of business on 31 July 2012, consisted of 56,186,617
ordinary shares of 5p each with voting rights.

The above figure (56,186,617) may be used by shareholders as the denominator
for the calculations by which they will determine if they are required to
notify their interest in, or a change to their interest in, Oxford Instruments
plc under the FSA's Disclosure and Transparency Rules.

Susan Johnson-Brett

Company Secretary

Oxford Instruments plc

07 August 2012

Direct dial: 01865 393324

Email: [e-mail]